bluuebunny/crossref_metadata_2025_split huggingface dataset:
Liquid chromatography–tandem mass spectrometric assay for the determination of tetrabenazine and its active metabolites in human plasma: a pharmacokinetic study
Authors: Derangula Venkata Ramu , Pilli Nageswara Rao , Nadavala Siva Kumar , Adireddy Vinayender , Inamadugu Jaswanth Kumar , Ponneri Venkateswarlu 
Published: January 2013

ABSTRACTA simple, rapid and sensitive liquid chromatography–tandem mass spectrometric (LC‐MS/MS) assay method has been developed and fully validated for the simultaneous quantification of tetrabenazine and its active metabolites α‐dihydrotetrabenazine and β‐dihydrotetrabenazine in human plasma. Tetrabenazine d7 was used as internal standard (IS). The analytes were extracted from 200 μL aliquots of human plasma via solid‐phase extraction using C18 solid‐phase extraction cartridges. The reconstituted samples were chromatographed on a Zorbax SB C18 column using a 60:40 (v/v) mixture of acetonitrile and 5 mm ammonium acetate as the mobile phase at a flow rate of 0.8 mL/min. The API‐4000 LC‐MS/MS in multiple reaction‐monitoring mode was used for detection. The calibration curves obtained were linear (r2 ≥ 0.99) over the concentration range of 0.01–5.03 ng/mL for tetrabenazine and 0.50–100 ng/mL for α‐dihydrotetrabenazine and β‐dihydrotetrabenazine. Method validation was performed as per Food and Drug Administration guidelines and the results met the acceptance criteria. The method is precise and sensitive enough for its intended purpose. A run time of 2.5 min for each sample made it possible to analyze more than 300 plasma samples per day. The proposed method was found to be applicable to clinical studies. Copyright © 2013 John Wiley & Sons, Ltd.
Chemical Variability of Algerian Myrtus communis L.
Authors: Bouzabata Amel , Castola Vincent , Bighelli Ange , Abed Lahouari , Casanova Joseph , Tomi Félix 
Published: January 2013

AbstractThe composition of 55 samples of essential oil isolated from the aerial parts of wild growing Myrtus communis L. harvested in 16 locations from East to West Algeria were investigated by GC (determination of retention indices) and 13C‐NMR analyses. The essential oils consisted mainly of monoterpenes, α‐pinene (27.4–59.2%) and 1,8‐cineole (6.1–34.3%) being the major components. They were also characterized by the absence of myrtenyl acetate. The compositions of the 55 oils were submitted to k‐means partitioning and principal component analysis, which allowed the distinction of two groups within the oil samples, which could be subdivided into two subgroups each. Groups I (78% of the samples) and II were differentiated on the basis of the contents of α‐pinene, linalool, and linalyl acetate. Subgroups IA and IB could be distinguished by their contents of α‐pinene and 1,8‐cineole. Subgroups IIA and IIB differed substantially in their contents of 1,8‐cineole and limonene. All the samples contained 3,3,5,5,8,8‐hexamethyl‐7‐oxabicyclo[4.3.0]non‐1(6)‐ene‐2,4‐dione (up to 4.9%).
Effect of Initial Temperature on Water Aggregation at a Cold Surface
Authors: Kier Lemont B. , Cheng Chao‐Kun 
Published: January 2013

AbstractCellular automata models of water at two initial temperatures were created. Each model was exposed to a freezing surface. The formation of fully bonded water cells, f4, was observed over time, beginning with a model of initially warm water and with initially cool water. The warm water formed more f4 cells earlier than the initially cool water. A high percentage of f4 cells is interpreted as the formation of ice. This is a model of the Mpemba effect. A description of the initial states for these two temperatures is offered in explanation of this effect.
Variability of the Needle Essential Oils of Juniperus deltoides R.P.Adams from Different Populations in Serbia and Croatia
Authors: Rajčević Nemanja , Janaćković Peđa , Bojović Srđan , Tešević Vele , Marin Petar D. 
Published: January 2013

AbstractThe essential‐oil compositions of one Croatian and three Serbian populations of Juniperus deltoides R.P.Adams have been determined by GC/MS analysis. In total, 147 compounds were identified, representing 97.3–98.3% of the oil composition. The oils were dominated by monoterpenes, which are characteristic components for the species of the section Juniperus. Two monoterpenes, α‐pinene and limonene, were the dominant constituents, with a summed‐up average content of 49.45%. Statistical methods were used to determine the diversity of the terpene classes and the common terpenes between the newly described J. deltoides populations from Serbia and Croatia. Only reports on several specimens from this species have been reported so far, and there are no studies that treat population diversity. Cluster analysis of the oil contents of 21 terpenes showed high correlation with the geographical distribution of the populations, separating the Croatian from the Serbian populations. The comparison of the essential‐oil compositions obtained in the present study with literature data, showed the separation of J. deltoides and J. oxycedrus ssp. oxycedrus from the western Mediterranean region.
Enhancing Oxidative Dehydrogenation Selectivity of Ceria‐Based Catalysts with Phosphorus as Additive
Authors: Trotuş Ioan‐Teodor , Teodorescu Cristian M. , Pârvulescu Vasile I. , Marcu Ioan‐Cezar 
Published: January 2013

AbstractSurface‐ and bulk‐phosphated ceria catalysts were prepared and studied in propane oxidative dehydrogenation (ODH) at 823 and 873 K. The catalysts were characterized by N2 adsorption at 77 K, XRD, TEM, and diffuse reflectance IR Fourier transform (DRIFT), Raman, X‐ray photoelectron (XPS), and energy dispersive X‐ray (EDX) spectroscopies. Both series of catalysts presented an increase in the ODH selectivity with respect to pure ceria mainly at the expense of total oxidation selectivity. Thus, the selectivity to propene was approximately 74 % with surface‐phosphated catalysts and 62 % with bulk‐phosphated catalysts. For the surface‐phosphated samples, P is confined to the surface and subsurface regions of the ceria particles, whereas P is also dispersed in the bulk of the oxide in the bulk‐phosphated samples. Finally, all the characterization techniques led us to the conclusion that Ce4+ cations that interact with P are responsible for the observed increase in the ODH.
Effect of Temperature on Controlled Air Oxidation of Plastic and Biomass in a Packed‐Bed Reactor
Authors: Meng Q.‐M. , Chen X.‐P. , Zhuang Y.‐M. , Liang C. 
Published: January 2013

AbstractA packed‐bed reactor was established to study the effect of temperature on the controlled air oxidation (CAO) performance of a mixture of polypropylene and sawdust at a fixed feed gas flow rate. The reactor temperature was varied from 400 to 800 °C. Attention was focused on product distribution, compositions of liquid and gas products, and technical parameters. The chemical composition of the liquid products was analyzed by gas chromatography/mass spectrometry. The results indicated an obvious impact of the temperature on the described parameters. The increase in temperature led to the decrease in solid fraction and a convex shape curve for the gas yield as well as to a decrease of alkanes and alkenes, and favored the generation of oxygen‐containing hydrocarbons. According to criteria of CAO conversion, the optimum temperature in the primary chamber was found to be 700 °C.
Am(m)ines Make the Difference: Organoruthenium Am(m)ine Complexes and Their Chemistry in Anticancer Drug Development
Authors: Babak Maria V. , Meier Samuel M. , Legin Anton A. , Adib Razavi Mahsa S. , Roller Alexander , Jakupec Michael A. , Keppler Bernhard K. , Hartinger Christian G. 
Published: January 2013

AbstractWith the aim of systematically studying fundamental structure–activity relationships as a basis for the development of RuII arene complexes (arene=p‐cymene or biphenyl) bearing mono‐, bi‐, or tridentate am(m)ine ligands as anticancer agents, a series of ammine, ethylenediamine, and diethylenetriamine complexes were prepared by different synthetic routes. Especially the synthesis of mono‐, di‐, and triammine complexes was found to be highly dependent on the reaction conditions, such as stoichiometry, temperature, and time. Hydrolysis and protein‐binding studies were performed to determine the reactivity of the compounds, and only those containing chlorido ligands undergo aquation or form protein adducts. These properties correlate well with in vitro tumor‐inhibiting potency of the compounds. The complexes were found to be active in anticancer assays when meeting the following criteria: stability in aqueous solution and low rates of hydrolysis and binding to proteins. Therefore, the complexes least reactive to proteins were found to be the most cytotoxic in cancer cells. In general, complexes with biphenyl as arene ligand inhibited the growth of tumor cells more effectively than the cymene analogues, consistent with the increase in lipophilicity. This study highlights the importance of finding a proper balance between reactivity and stability in the development of organometallic anticancer agents.
Co‐Conformational Isomerism in a Neutral Ion‐Paired Supramolecular System
Authors: Cervantes Ruy , Sánchez Raul I. , Tiburcio Jorge 
Published: January 2013

AbstractTwo different counter‐ion‐free host–guest complexes have been prepared and isolated. These compounds were formed from two equally and opposite doubly‐charged species, the viologen guests 1 a2+ and 1 b2+ and the anti‐disulfodibenzo[24]crown‐8 [DSDB24C8]2− host, which gave rise to the 1:1 neutral complexes [1 a⋅DSDB24C8] and [1 b⋅DSDB24C8]. These species are held together by hydrogen bonding and π stacking, as well as strong electrostatic interactions. The investigation of these neutral ion‐paired supramolecular systems in solution and in the solid state allowed us to establish their co‐conformational preferences. Compound [1 a⋅DSDB24C8], with small methyl groups as substituents on the viologen unit, may adopt three different geometries, 1) an exo nonthreaded, 2) a partially threaded, and 3) a threaded arrangement, depending on the relative spatial orientation between the host and guest: The partially‐threaded structure is preferred in solution and in the solid state. The presence of bulky tert‐butylbenzyl groups in the viologen moiety in compound [1 b⋅DSDB24C8] restricts the possible geometrical arrangements to one: The exo nonthreaded arrangement. This structure was confirmed in the solid state by X‐ray crystallography. The stability of the neutral complexes in solution was determined by UV/Vis spectrophotometry. The stoichiometry of the complexes was established by continuous variation experiments, and overall equilibrium constants and ΔG° values were determined on the basis of dilution experiments. The results observed are a consequence of only the intrinsic stability of the complexes as there are no additional contributions from counter ions.
ChemInform Abstract: Crystal Structure and Vibrational Properties of a Sodium Oxoferrate(II) Hydroxide, Na5[FeO3][OH].
Authors: Gheorghe Dana E. , Litvinchuk Alexander P. , Moeller Angela 
Published: January 2013

AbstractRed crystals of the title compound are prepared by reaction of Na2O, Fe, CdO, and NaOH (Ag container, argon, 450 °C, 5 d).
ChemInform Abstract: Facile Fabrication of Bi2O3/Bi—NaTaO3 Photocatalysts for Hydrogen Generation under Visible Light Irradiation.
Authors: Reddy K. Hemalata , Martha Satyabadi , Parida K. M. 
Published: January 2013

AbstractBi2O3/Bi—NaTaO3 photocatalysts are prepared by solid state reaction of Bi(NO3)3, Ta2O5, and Na2C2O4 using urea as complexing agent and fuel (600 °C, 4 h).
ChemInform Abstract: The Zintl Phases Eu3Mg5Si5 and Eu3Mg5Ge5.
Authors: Schellenberg Inga , Eul Matthias , Schwickert Christian , Kubata Christof M. , Cuervo Reyes Eduardo , Nesper Reinhard , Rodewald Ute Ch. , Poettgen Rainer 
Published: January 2013

AbstractThe Zintl phases of title are prepared by high‐frequency melting of the elements (Ta tubes, 800 mbar argon, 1280 K for 10 min and 1080 K for3 h).
ChemInform Abstract: New Thiostannates Synthesized under Solvothermal Conditions: Crystal Structures of (trenH)2Sn3S7 and {[Mn(tren)]2Sn2S6}.
Authors: Pienack Nicole , Schinkel Diana , Puls Angela , Ordolff Marie‐Eve , Luehmann Henning , Naether Christian , Bensch Wolfgang 
Published: January 2013

AbstractThe new compounds (II) and (IV) are solvothermally synthesized and their crystal structures are determined by single crystal XRD.
ChemInform Abstract: Crystal Structure and Electronic Structure of Red SnO.
Authors: Koehler Juergen , Tong Jianwei , Dinnebier Robert , Simon Arndt 
Published: January 2013

AbstractRuby‐red powder samples of SnO are obtained from a freshly prepared acidic SnCl2 solution containing H3PO3 by adjusting the pH value to 4.9 (dropwise addn.
ChemInform Abstract: Uranyl Halides from Liquid Ammonia: [UO2(NH3)5] Cl2·NH3 and [UO2F2(NH3)3] 2·2NH3 and Their Decomposition Products [UO2Cl2(NH3)3] and [UO2F2(NH3)3].
Authors: Woidy Patrick , Karttunen Antti J. , Kraus Florian 
Published: January 2013

AbstractThe crystal structures of the green compound (II) and the yellow compound (IV) are determined by single crystal XRD.
ChemInform Abstract: The Trivalent Manganese Hydrogenophosphate LiMn(H2P2O7)2: A Chain‐Like Structure.
Authors: Baies Radu , Pralong Valerie , Caignaert Vincent , Raveau Bernard 
Published: January 2013

AbstractThe new MnIII compound of title is prepared by addition of Li2CO3 to a hot (250 °C) solution of Mn2O3 in conc.
ChemInform Abstract: Synthesis and Crystal Structure of the Highly Reduced Metalate Ba3[Ir(CN)3].
Authors: Jach Franziska , Hoehn Peter , Senyshyn Anatoliy , Ruck Michael , Kniep Ruediger 
Published: January 2013

AbstractThe title compound is synthesized by solid state reaction of Ba2N, Ir, NaCN, and graphite (pressed pellets, Ta ampules, argon, 1020 K, 24 h).
ChemInform Abstract: (3R,4R)‐2,2,5,5‐Tetraphenyltetrahydrofuran‐3,4‐diol Assisted, L‐Proline‐Catalyzed Michael Addition of Acetone to Nitroalkenes.
Authors: Hu Xiaoyun , Shan Zixing , Qing Chang 
Published: January 2013

AbstractAddition of catalytic amounts of the chiral title furandiol (TPF) in the proline‐catalyzed Michael addition of acetone to nitroalkenes results in a significant improvement of the enantioselectivity.
ChemInform Abstract: Palladium(II)‐Catalyzed Tandem Cyclization of Electron‐Deficient Aromatic Enynes.
Authors: Wu Na , Messinis Antonios , Batsanov Andrei S. , Yang Zhen , Whiting Andrew , Marder Todd B. 
Published: January 2013

AbstractA novel one‐pot tandem cyclization of electron‐deficient aromatic enynes furnishing indenones or 6,5,6‐fused tricyclic lactones is developed.
ChemInform Abstract: Mixed Metal MgO—ZrO2 Nanoparticle‐Catalyzed O‐tert‐Boc Protection of Alcohols and Phenols under Solvent‐Free Conditions.
Authors: Gawande Manoj B , Shelke Sharad N. , Branco Paula S. , Rathi Anuj , Pandey Rajesh K. 
Published: January 2013

AbstractAn environmentally benign, expedient, simple, and efficient protocol for the title reaction is described by using a novel, reusable, and chemoselective catalyst which can be easily prepared from inexpensive precursors.
ChemInform Abstract: Chemoselective Transfer Hydrogenation to Nitroarenes Mediated by Cubane‐Type Mo3S4 Cluster Catalysts.
Authors: Sorribes Ivan , Wienhoefer Gerrit , Vicent Cristian , Junge Kathrin , Llusar Rosa , Beller Matthias 
Published: January 2013

AbstractA wide range of aromatic and heteroaromatic nitro‐compounds is reduced to the corresponding amines using formates as reducing agent.
ChemInform Abstract: Indium‐Mediated Aza‐Henry Reaction of Imines: Access to 2‐Nitroamines.
Authors: Soengas Raquel G. , Silva Sandrina , Estevez Amalia M. , Estevez Juan C. , Estevez Ramon J. , Rodriguez‐Solla Humberto 
Published: January 2013

AbstractA new method for the synthesis of the title compounds is developed.
ChemInform Abstract: Highly Efficient Asymmetric Michael Addition Reaction of Malonates to α,β‐Unsaturated Ketones Promoted by a Chiral Thiourea/PPY Dual‐Catalyst System.
Authors: Moritaka Maya , Miyamae Naomu , Nakano Keiji , Ichikawa Yoshiyasu , Kotsuki Hiyoshizo 
Published: January 2013

AbstractA new catalyst system is developed.
ChemInform Abstract: Heck Reaction of Baylis—Hillman Adducts with Iodobenzenes Using a Catalytic Amount of Pd/C under Solvent‐Free Conditions.
Authors: Kim Hyun‐Soo , Lee Sang‐Jin , Choi Boram , Yoon Cheol Min 
Published: January 2013

AbstractThe efficient process affords α‐benzyl‐β‐keto esters in generally high yields in the absence of any additive or solvent.
ChemInform Abstract: Catalyst‐Free Amidation of Trimethylsilyl Ketene Imines with Isocyanates.
Authors: Qin Wenling , Long Sha , Panunzio Mauro , Bongini Alessandro 
Published: January 2013

AbstractThe silyl ketimines, generated in situ from diarylmethane nitriles and TmsCl via lithiation, undergo a non‐catalyzed reaction with isocyanates to give highly substituted malonamides in moderate yields.
ChemInform Abstract: Dramatic Solvent Effect in the One‐Pot Synthesis of Substituted Ureas Directly from Primary Alcohols Using the Combined Reagent of Iodobenzene Dichloride and Sodium Azide in Ethyl Acetate.
Authors: Zhang Chi , Wang Wei‐Kun , He Tian 
Published: January 2013

AbstractCompare to MeCN, previously used in similar procedures, ethyl acetate is found to be the optimal solvent for the conversion of benzylic alcohols into carbamoyl azides.
ChemInform Abstract: Phase‐Transfer Catalysts in the O‐Alkylation of 2‐Hydroxynaphthoquinones.
Authors: Lu Xiao , Altharawi Ali , Hansen Emily N. , Long Timothy E. 
Published: January 2013

AbstractA mild procedure for the selective alkylation of the substrates at the 2‐hydroxy group is developed using a mixture of two phase‐transfer catalysts.
ChemInform Abstract: Synthesis of 3,4‐Dihalogenated Furan‐2‐(5H)‐ones by Electrophilic Cyclization of 4‐Hydroxy‐2‐alkynoates.
Authors: Zhu Hai‐Tao , Wang Li‐Jing , Ji Ke‐Gong , Liu Xue‐Yuan , Liang Yong‐Min 
Published: January 2013

AbstractAn efficient synthesis of the title compounds (II), (III), or (IV) is described.
ChemInform Abstract: Electrophilic Cyclization of 2‐(2′,3′‐Allenyl)acetylacetates with Iodine Using Calcium Hydride as the Base.
Authors: Wan Baoqiang , Jiang Xuefeng , Jia Guochen , Ma Shengming 
Published: January 2013

AbstractA rapid, facile, scalable, and efficient protocol for the title reaction is developed.
ChemInform Abstract: Palladium‐Catalyzed Asymmetric Synthesis of 2‐Pyrrolidinones with a Quaternary Carbon Stereocenter.
Authors: Shintani Ryo , Ito Tomoaki , Nagamoto Midori , Otomo Haruka , Hayashi Tamio 
Published: January 2013

AbstractA novel chiral phosphoramidite ligand is prepared and successfully applied in the palladium‐catalyzed reaction of lactones (I) with isocyanates.
ChemInform Abstract: Synthesis of Bis(indolyl)methanes Using Silica Gel as an Efficient and Recyclable Surface.
Authors: Mendes Samuel R. , Thurow Samuel , Fortes Margiani P. , Penteado Filipe , Lenardao Eder J. , Alves Diego , Perin Gelson , Jacob Raquel G. 
Published: January 2013

AbstractA simple solvent‐free protocol is developed.
ChemInform Abstract: Effect of Microwave Irradiation on the Synthesis of 1,2,4‐Triazol‐3‐one Derivatives and Their Antimicrobial Activities.
Authors: Kahveci Bahittin , Yilmaz Fatih , Mentese Emre , Beris Fatih Saban 
Published: January 2013

AbstractAn efficient and easy method for the synthesis of triazolone derivatives (III) and their conversion into 5‐mercapto‐1,3,4‐oxadiazole derivatives (VIII) using microwave chemistry is described.
ChemInform Abstract: Some Novel Oxadiazolyl/Azetidinyl Benzimidazole Derivatives: Synthesis and in vitro Biological Evaluation.
Authors: Ansari K. F. , Lal C. , Parmar D. L. 
Published: January 2013

AbstractVarious oxadiazolyl‐(X) and azetidinyl‐derivatives (XIV) of benzimidazole are synthesized and evaluated for their antibacterial activity.
ChemInform Abstract: Synthesis of (1H)‐Isochromen‐1‐imines by Nickel‐Catalyzed Reaction of 2‐Iodobenzamides with Alkynes.
Authors: Miura Tomoya , Hiraga Kentaro , Toyoshima Takeharu , Yamauchi Motoshi , Murakami Masahiro 
Published: January 2013

AbstractThe reaction of 2‐iodobenzamide (I) and 3‐iodoacrylamide (VIII), respectively with alkynes in the presence of a nickel(0) catalyst with various ligands is studied.
ChemInform Abstract: Catalytic Coupling of Arene C—H Bonds and Alkynes for the Synthesis of Coumarins: Substrate Scope and Application to the Development of Neuroimaging Agents.
Authors: Vadola Paul A. , Sames Dalibor 
Published: January 2013

AbstractPtCl4 and AuCl(PPh3)/ AgSbF6 efficiently promote the intramolecular hydroarylation of alkynoates, thus allowing formation of various coumarin derivatives.
ChemInform Abstract: An Expeditious Synthesis of cis‐2‐(Aroylmethyl)‐4‐phenylthiochromans by Iodine‐Catalyzed Combination of Thiophenol with Cinnamylideneacetophenones.
Authors: Mallik Asok K. , Mandal Tapas K. , Pal Rammohan , Ghosal Debojyoti , Patra Amarendra 
Published: January 2013

AbstractA simple method is presented for the stereoselective synthesis of a new family of biologically interesting thiochroman derivatives.
ChemInform Abstract: Catalytic Asymmetric [4 + 2] Annulation Initiated by an Aza‐Rauhut—Currier Reaction: Facile Entry to Highly Functionalized Tetrahydropyridines.
Authors: Shi Zugui , Yu Peiyuan , Loh Teck‐Peng , Zhong Guofu 
Published: January 2013

AbstractAminophosphine catalyst derived from a natural amino acid is applied to catalyze the title reaction affording enantioenriched tetrahydropyridines in high dia‐ and enantioselectivities.
ChemInform Abstract: A Facile and Convenient Synthesis of Novel Pyridine Derivatives Incorporating Antipyrine Moiety and Investigation of Their Antimicrobial Activities.
Authors: Kheder Nabila A. , Riyadh Sayed M. , Asiry Ahlam M. 
Published: January 2013

AbstractTitle compounds (III) and (V) are synthesized starting from acetamide (I).
ChemInform Abstract: Preparation of N‐Alkyl 2‐Pyridones via a Lithium Iodide Promoted O‐ to N‐Alkyl Migration: Scope and Mechanism.
Authors: Tasker Sarah Z. , Bosscher Michael A. , Shandro Christina A. , Lanni Erica L. , Ryu Keun Ah , Snapper Gregory S. , Utter Jarrad M. , Ellsworth Bruce A. , Anderson Carolyn E. 
Published: January 2013

AbstractIn the presence of LiI, a number of 2‐benzyloxy‐, 2‐allyloxy‐, and 2‐propargyloxypyridines undergoes efficient migration to afford N‐alkylated 2‐pyridones.
ChemInform Abstract: Enantioselective Organocatalytic Domino Synthesis of Tetrahydropyridin‐2‐ols.
Authors: Wan Jie‐Ping , Loh Charles C. J. , Pan Fangfang , Enders Dieter 
Published: January 2013

AbstractA series of tetrahydropyridin‐2‐ols (III) is obtained by a Michael addition‐hemiaminalization reaction sequence of enaminones (I) with enals (II).
ChemInform Abstract: Oxidative Addition of Heteroaromatic Halides to Negishi Reagent and Subsequent Cross‐Coupling Reactions.
Authors: Harris Caleb F. , Ravindranathan Deepak , Huo Shouquan 
Published: January 2013

AbstractHeteroarylzirconocene halides such as (II), generated in situ, are found to be excellent coupling partners in reactions with functionalized aryl and heteroaryl halides.
ChemInform Abstract: Al‐Catalyzed Facile Construction of Quaternary C—C Bonds by the Allylic Substitution of Tertiary Alcohols: A Concise and Formal Synthesis of (.+‐.)‐Mersicarpine.
Authors: Zhong Xue , Li You , Han Fu‐She 
Published: January 2013

AbstractTricyclic tertiary alcohol (I) is efficiently prepared in a very atom‐efficient manner in three steps from indole and succinic anhydride via acyclation of indole with the anhydride, Friedel—Crafts acylation of the resulting indole carboxylic acid to give the tricycle, and final Grignard reaction to install the tertiary alcohol.
ChemInform Abstract: Concise [4 + 3] Cycloaddition Reaction of Pyrroles Leading to Tropinone Derivatives.
Authors: Fuchigami Ryuichi , Namba Kosuke , Tanino Keiji 
Published: January 2013

Abstract2‐(Silyloxy)allyl cations, stabilized with a methylthio function or geminal methyl groups, are generated in situ from the corresponding allylic alcohols.