bluuebunny/crossref_metadata_2025_split huggingface dataset:
Friable but treatable
Authors: Zago Alexandre C. , Matte Bruno S. 
Published: March 2012

AbstractVascular Ehlers–Danlos syndrome is a rare connective tissue disorder associated with arterial dissection or rupture. Percutaneous coronary intervention (PCI) is often critical in patients with this syndrome because their coronary arteries are prone to dissection, enhancing the risk of stent borders dissection when conventional stent deployment pressures are used. Coronary artery bypass graft (CABG) treatment for these patients may also raise concerns because the left internal mammary artery is probably friable. Therefore, coronary artery revascularization in vascular Ehlers–Danlos syndrome either using PCI or CABG is challenging due to the arteries friability. A small number of cases have been published describing the friability of the vessels and associated complications; nevertheless, the optimum treatment remains unclear. We report the case of a 54‐year‐old woman treated successfully with PCI and CABG in two different acute coronary syndrome episodes, in which specific technical issues related to both procedures were decisive. © 2012 Wiley Periodicals, Inc.
Intracoronary ECG ST‐segment recovery during primary percutaneous intervention for ST‐segment myocardial infarction: Insights from a cardiac MRI study
Authors: Wong Dennis T.L. , Leung Michael C.H. , Das Rajiv , Puri Rishi , Liew Gary Y.H. , Teo Karen S.L. , Chew Derek P. , Meredith Ian T. , Worthley Matthew I. , Worthley Stephen G. 
Published: March 2012

AbstractBackgroundST‐segment‐resolution (STR) on surface electrocardiogram (ECG) is a good surrogate for myocardial reperfusion in patients with acute ST‐segment‐elevation‐myocardial‐infarction (STEMI). We sort to determine the optimal criteria of measuring STR on intracoronary‐ECG (IC‐ECG) for prediction of myocardial injury evaluated by cardiac MRI (CMR).MethodsMeasurements of IC‐ECG ST‐segments were performed at baseline, immediately after (early) and 15 min (late) after achieving TIMI‐3 flow during primary‐PCI. The degree of ST‐segment‐shift from baseline noted upon the IC‐ECG was divided into four groups: (group 1) ST‐segment‐resolution >1 mm, (group 2) <30% resolution, (group 3) >50% resolution, (group 4) >70% resolution at both early and late time points. Patients had CMR at days 3 and 90 postprimary‐PCI.ResultsFifty two patients (aged 60 ± 11 years; 43 males) were evaluated. Early intracoronary‐ECG ST‐segment resolution (early IC‐STR >1 mm) correlated with smaller scar mass (P = 0.003), nonviable myocardial mass (P < 0.001), and microvascular obstruction (MVO) (P = 0.004) on CMR at day 3. Ejection fraction (EF) was also better at day 3 (P = 0.026) and 90 (P = 0.039). Patients with poor early IC‐STR (IC‐STR <30%) conversely is associated with larger scar mass (P = 0.017), nonviable myocardial mass (P = 0.01), and MVO (P = 0.021) at day 3. This was also associated with worse EF at day 90 (P = 0.044). Neither group 3 or 4, or the late measurements of late IC‐STR correlated with CMR markers of myocardial injury.ConclusionThe degree of early IC‐STR (defined by IC‐STR > 1 mm or <30%) successfully predicts myocardial damage following primary‐PCI for an acute STEMI. Further studies are required to investigate its potential utility. © 2011 Wiley Periodicals, Inc.
Left recurrent laryngeal nerve palsy secondary to left pulmonary artery stent in a child
Authors: Kobayashi Daisuke , Turner Daniel R. , Humes Richard A. 
Published: March 2012

AbstractWe report a 10‐year‐old girl who developed persistent hoarseness after stent placement for the treatment of left pulmonary artery stenosis. Laryngoscopy performed 21 months after stent placement revealed left vocal cord paralysis, presumed secondary to compression of the left recurrent laryngeal nerve by the stent. Pediatric cardiologists should be reminded of this possible rare complication after stent placement. © 2012 Wiley Periodicals, Inc.
Excimer laser with adjunctive balloon angioplasty and heparin‐coated self‐expanding stent grafts for the treatment of femoropopliteal artery in‐stent restenosis
Authors: Laird John R. , Yeo Khung Keong , Rocha‐Singh Krishna , Das Tony , Joye James , Dippel Eric , Reddy Bhagat , Botti Charles , Jaff Michael R. 
Published: March 2012

AbstractObjectivesThe aim of the study is to evaluate the safety and effectiveness of treating femoropopliteal in‐stent restenosis (ISR) with debulking with excimer laser followed by implantation of a VIABAHN endoprosthesis.BackgroundThe optimal treatment strategy for femoropopliteal ISR is unclear.MethodsThe SALVAGE study is a multicenter prospective registry involving nine US centers. Patients with femoropopliteal ISR with moderate to severe intermittent claudication or critical limb ischemia (Rutherford categories 2–5) and an ankle‐brachial index (ABI) =0.8 were treated with excimer laser and the VIABAHN endoprosthesis. The primary efficacy endpoint is primary patency at 12 months as measured by duplex ultrasonography. The primary safety endpoint is the major adverse event (MAE) rate at 30 days.ResultsTwenty‐seven patients were enrolled. The mean lesion length was 20.7 ± 10.3 cm. The majority of lesions were TASC (TASC I) C and D (81.4%). All lesions were pretreated with excimer laser and percutaneous transluminal angioplasty (PTA) prior to VIABAHN implantation. Technical success was achieved in 100% of cases. There were no MAE at 30 days. Primary patency at 12 months was 48%. The ankle brachial index increased from 0.58 ± 0.24 at baseline to 0.90 ± 0.17 at 12 months. There was improvement in all quality‐of‐life parameters. The 12‐month TLR rate was 17.4%.ConclusionsThe strategy of excimer laser atherectomy and PTA followed by implantation of a self‐expanding stent graft for the treatment of femoropopliteal ISR is safe and associated with high procedural success. Primary patency rate at 12‐months was suboptimal; however, the TLR rate was low. © 2012 Wiley Periodicals, Inc.
Symptomatic right ventricular ischemia secondary to a critical stenosis in a nondominant right coronary artery
Authors: Flynn Shawn E. , Sachdeva Rajesh , Uretsky Barry F. 
Published: March 2012

AbstractStable angina pectoris owing to isolated right ventricular ischemia from a critical stenosis in a nondominant right coronary artery is a rare entity and documentation of isolated right ventricular ischemia even rarer. We present a case of isolated right ventricular ischemia documented by fractional flow reserve (FFR) and resolution of symptoms after percutaneous coronary intervention. © 2012 Wiley Periodicals, Inc.
Multielectron Redox Chemistry of a Neutral, NIR‐Active, Indigo‐Pillared ReI‐Based Triangular Metalloprism
Authors: Bhattacharya Dibyendu , Chang Che‐Hao , Cheng Yu‐Hsiang , Lai Long‐Li , Lu Hsiu‐Yu , Lin Ching‐Yao , Lu Kuang‐Lieh 
Published: March 2012

AbstractSelf‐assembled, hexarhenium(I), triangular metalloprism compound [{(CO)3Re(μ‐2)Re(CO)3}3(μ3‐1)2] (3) featuring three bis‐chelating pillarlike indigo dianions (μ‐2), each of which connects two fac‐Re(CO)3 cores, which are interconnected by a tritopic N donor, that is, a 2,4,6‐tris(4‐pyridyl)‐1,3,5‐triazine (μ3‐1, tPyTz) ligand, has been synthesized in high yield and characterized. Metalloprism 3 exhibits a strong absorption in the near‐infrared (NIR) region. The reversible, multielectron redox properties of the electrogenerated 3n species, where n=3+, 0, 3−, 4−, 5−, 8−, in the visible and especially in the NIR region were investigated in THF solution by cyclic voltammetry (CV), chronocoulometry, EPR spectroscopy, and thin‐layer UV/Vis/NIR spectroelectrochemistry (SEC). Stepwise, site‐specific electrochemical reductions lead to the formation of a series of highly stable ion (radical) species in which electrons associated with μ‐2 or μ3‐1 components of the molecule can be clearly distinguished. An EPR investigation revealed interaction of unpaired electrons with the metal nuclei (185,187Re, I=5/2) in the reduced intermediates. The framework has C2 symmetry, and accidental degeneracies suffice. Detailed theoretical calculations by structure‐based DFT confirm that the triply degenerate HOMO has ≥70 % indigo character with a sizable dπ‐Re character, while the LUMO is dominated by the triply degenerate indigo ligands, and the LUMO+1 by doubly degenerate tPyTz ligands. A comparison of 3 and previously reported 2,2′‐bis‐benzimidazolate‐ (BiBzlm) or alkoxy‐pillared ReI metalloprisms indicates a very low switching potential with a potential window of less than 1 V and reversibly accessible optical properties with higher stability of the intermediates. The properties exhibited by 3 appear to be due to the slight tuning of the bridging ligand from N,N− to N,O−.
Asymmetric Hydrolytic Kinetic Resolution with Recyclable Macrocyclic CoIII–Salen Complexes: A Practical Strategy in the Preparation of (R)‐Mexiletine and (S)‐Propranolol
Authors: Sadhukhan Arghya , Khan Noor‐ul H. , Roy Tamal , Kureshy Rukhsana I. , Abdi Sayed H. R. , Bajaj Hari C. 
Published: March 2012

AbstractA chiral cobalt(III) complex (1 e) was synthesized by the interaction of cobalt(II) acetate and ferrocenium hexafluorophosphate with a chiral dinuclear macrocyclic salen ligand that was derived from 1R,2R‐(−)‐1,2‐diaminocyclohexane with trigol bis‐aldehyde. A variety of epoxides and glycidyl ethers were suitable substrates for the reaction with water in the presence of chiral macrocyclic salen complex 1 e at room temperature to afford chiral epoxides and diols by hydrolytic kinetic resolution (HKR). Excellent yields (47 % with respect to the epoxides, 53 % with respect to the diols) and high enantioselectivity (ee>99 % for the epoxides, up to 96 % for the diols) were achieved in 2.5–16 h. The CoIII macrocyclic salen complex (1 e) maintained its performance on a multigram scale and was expediently recycled a number of times. We further extended our study of chiral epoxides that were synthesized by using HKR to the synthesis of chiral drug molecules (R)‐mexiletine and (S)‐propranolol.
ChemInform Abstract: An Alkoxido‐Tin‐Substituted Polyoxometalate [(MeO)SnW5O18]3‐: The First Member of a New Family of Reactive {SnW5} Lindqvist‐Type Anions.
Authors: Kandasamy Balamurugan , Wills Corinne , McFarlane William , Clegg William , Harrington Ross W. , Rodriguez‐Fortea Antonio , Poblet Josep M. , Bruce Peter G. , Errington R. John 
Published: March 2012

AbstractCompound (IV), which represents the first member of a family of {SnW5} Lindqvist anions with reactive Sn—X groups, is characterized by NMR spectroscopy, FTIR spectroscopy, cyclic voltammetry, and single crystal XRD.
ChemInform Abstract: Oleum and Sulfuric Acid as Reaction Media: The Actinide Examples UO2(S2O7)‐lt (Low Temperature), UO2(S2O7)‐ht (High Temperature), UO2(HSO4)2, An(SO4)2 (An: Th, U), Th4(HSO4)2(SO4)7 and Th(HSO4)2(SO4).
Authors: Betke Ulf , Wickleder Mathias S. 
Published: March 2012

AbstractThe crystal structures of the new title compounds are determined by single crystal XRD.
ChemInform Abstract: Catalytic Enantioselective Intermolecular Cycloaddition of Diazodiketoester‐Derived Carbonyl Ylides with Indoles Using Chiral Dirhodium(II) Carboxylates.
Authors: Shimada Naoyuki , Oohara Tadashi , Krishnamurthi Janagiraman , Nambu Hisanori , Hashimoto Shunichi 
Published: March 2012

AbstractUnder conditions A), the corresponding cycloadducts (III) and (V) are formed in good yields and high levels of enantio‐ and exo diastereoselectivity.
ChemInform Abstract: Allylic Substitution on Cyclopentene and ‐hexene Rings with Alkynylcopper Reagents.
Authors: Wang Qian , Kobayashi Yuichi 
Published: March 2012

AbstractSubstitution of cyclic allylic picolinates (I) and (IV) with a Cu(acac)2‐derived reagent is found to be highly regio‐ and diastereoselective to afford the corresponding SN2′ products (III) and (V) in good yields.
ChemInform Abstract: Catalytic Hydroacylation as an Approach to Homoaldol Products.
Authors: Murphy Stephen K. , Petrone David A. , Coulter Matthew M. , Dong Vy M. 
Published: March 2012

AbstractThe intermolecular hydroacylation of homoallyl alcohols (II) and (IV) with salicylaldehydes (I) to furnish homoaldol products (III) and (V) in good yields is described.
ChemInform Abstract: Synthesis of α,α‐Disubstituted α‐Amino Esters: Nucleophilic Addition to Iminium Salts Generated from Amino Ketene Silyl Acetals.
Authors: Hata Shingo , Koyama Hiroshi , Shimizu Makoto 
Published: March 2012

AbstractA straightforward method to prepare a number of α,α‐disubstituted α‐amino esters is reported.
ChemInform Abstract: A Simple Procedure for the Polymer‐Supported N‐Heterocyclic Carbene—Rhodium Complex via Click Chemistry: A Recyclable Catalyst for the Addition of Arylboronic Acids to Aldehydes.
Authors: He Ying , Cai Chun 
Published: March 2012

AbstractA novel polymer‐supported N‐heterocyclic carbene‐rhodium complex is synthesized and used as a catalyst for the addition of arylboronic acids (II) to aryl aldehydes (I).
ChemInform Abstract: Phosphine‐Free Palladium Catalytic System for the Selective Direct Arylation of Furans or Thiophenes Bearing Alkenes and Inhibition of Heck‐Type Reaction.
Authors: Chen Lu , Roger Julien , Bruneau Christian , Dixneuf Pierre H. , Doucet Henri 
Published: March 2012

AbstractIt is found that Pd(O‐Ac)2 and PdCl(allyl)(dppb) in combination with KOAc efficiently promote direct C‐5 arylation of furans and thiophenes containing alkene units.
ChemInform Abstract: Efficient Catalyst‐Free Chemical Fixation of Carbon Dioxide into 2‐Oxazolidinones under Supercritical Condition.
Authors: Xu Jing Xiu , Zhao Jin Wu , Jia Zhen Bin 
Published: March 2012

AbstractSupercritical carbon dioxide is used as solvent and reactant in the three‐component reaction with propargylic alcohols and amines.
ChemInform Abstract: Copper‐Catalyzed Enantioselective Additions to Oxocarbenium Ions: Alkynylation of Isochroman Acetals.
Authors: Maity Prantik , Srinivas Harathi D. , Watson Mary P. 
Published: March 2012

AbstractThe alkynyl group can easily be hydrogenated to give the corresponding 1‐alkylisochromans such as (IV).
ChemInform Abstract: Halonium‐Initiated Electrophilic Cascades of 1‐Alkenoylcyclopropane Carboxamides: Efficient Access to Dihydrofuropyridinones and 3(2H)‐Furanones.
Authors: Wei Ying , Lin Shaoxia , Zhang Juan , Niu Zaihai , Fu Qiang , Liang Fushun 
Published: March 2012

AbstractThe title reaction affords dihydrofuropyridinones (III) and/or 3(2H)‐furanones (IV) depending on the properties of the substituent on the enone moiety.
ChemInform Abstract: Synthesis and Inhibition Study of Monoamine Oxidase, Indoleamine 2, 3‐Dioxygenase and Tryptophan 2,3‐Dioxygenase by 3,8‐Substituted 5H‐Indeno[1,2‐c]pyridazin‐5‐one Derivatives.
Authors: Reniers J. , Meinguet C. , Moineaux L. , Masereel B. , Vincent S. P. , Frederick R. , Wouters J. 
Published: March 2012

AbstractNew 5H‐indeno[1,2‐c]pyridazines are synthesized and their inhibitory potency against human monoamine oxidase (MOA) A and B is evaluated.
ChemInform Abstract: Microwave‐Assisted Synthesis of Some Novel Fluorinated Pyrazolo[3,4‐d]pyrimidine Derivatives Containing 1,3,4‐Thiadiazole as Potential Antitumor Agents.
Authors: Song Xin Jian , Shao Yu , Dong Xing Gao 
Published: March 2012

AbstractSome products exhibit a good anticancer activity against HL‐60.
ChemInform Abstract: Synthesis of Naphtho[1,2‐e]pyrazolo[5,1‐b][1,3]oxazines.
Authors: Osyanin V. A. , Nakushnov V. Y. , Klimochkin Y. N. 
Published: March 2012

AbstractThe title compounds (III), representatives of a previously unknown heterocyclic system, are obtained by condensation of 1‐dimethylaminoethyl‐2‐naphthols (I) with bromopyrazoles (II).
ChemInform Abstract: Phosphomolybdic Acid Catalyzed Synthesis of 1,2,4,5‐Tetraoxanes.
Authors: Yan Xing , Chen Jinglei , Zhu Yun‐Ting , Qiao Chunhua 
Published: March 2012

AbstractThe condensation of dihydroperoxides and carbonyl compounds is achieved using phosphonomolybdic acid as the catalyst and anhydrous magnesium sulfate as water scavenger to yield spirocyclic tetraoxanes as subunits of antimalarial drugs.
ChemInform Abstract: Hydrophosphonylation of Alkenes or Nitriles by Double Radical Transfer Mediated by Titanocene/Propylene Oxide.
Authors: Midrier Camille , Lantsoght Mathias , Volle Jean‐Noel , Pirat Jean‐Luc , Virieux David , Stevens Christian V. 
Published: March 2012

AbstractUnder optimized conditions, the reaction affords aminobisphosphonates (III) or alkylphosphonates (V) in moderate to good yields.
ChemInform Abstract: Studies on Novel Phytochemicals. Part 76. New Bioactive Macrocyclic Diterpenoids from Jatropha multifida.
Authors: Kanth Boddu Shashi , Kumar Avula Satya , Shinde Digambar Balaji , Babu Kothapalli Hari , Raju Tuniki Venugopal , Kumar Chityal Ganesh , Sujitha Pombala , Das Biswanath 
Published: March 2012

AbstractTwo new diterpenoids, multifidanol (I) and multifidenol (II), are isolated together with several known compounds.
ChemInform Abstract: New Pyranonaphthoquinones and a Phenazine Alkaloid Isolated from Streptomyces sp. IFM 11307 with Trail Resistance‐Overcoming Activity.
Authors: Abdelfattah Mohamed S. , Kazufumi Toume , Ishibashi Masami 
Published: March 2012

AbstractFour new pyranonaphthoquinones (I)—(III) and one new phenazine derivative (IV) are isolated from the liquid culture of Streptomyces sp.
ChemInform Abstract: Nb3Ru5B2 — The First Fully Characterized Ternary Phase in the Nb—Ru—B System: Synthesis, Crystal Structure, and Bonding Analysis.
Authors: Hermus Martin , Geier Daniel , Fokwa Boniface P. T. 
Published: March 2012

AbstractThe title compound is prepared by arc‐melting of the elements and characterized by single crystal XRD and LMTO scalar‐relativistic electronic structure calculations.
ChemInform Abstract: Iron‐Catalyzed Reductive Dehydroxylation of Benzylic Alcohols Using Polymethylhydrosiloxane (PMHS).
Authors: Chan Li Yan , Lim Jazreel Seh Kai , Kim Sunggak 
Published: March 2012

AbstractThe method allows the selective dehydroxylation of secondary benzylic alcohols in the presence of carbonyl groups and primary benzylic alcohols.
ChemInform Abstract: TBHP‐Mediated Oxidative Thiolation of an sp3 C—H Bond Adjacent to a Nitrogen Atom in an Amide.
Authors: Tang Ri‐Yuan , Xie Ye‐Xiang , Xie Yi‐Li , Xiang Jian‐Nan , Li Jin‐Heng 
Published: March 2012

AbstractThe oxidative thiolation of N,N‐dimethylacetamide (IIa) leads to a variety of sulfides (V) as sole reaction products, while the analogous reaction of N,N‐dimethylformamide (VI) and 1‐methylpyrrolidin‐one (IX) gives rise to a mixture of 2 derivatives.
ChemInform Abstract: Silicon‐Based Lewis Acid Assisted Cinchona Alkaloid Catalysis: Highly Enantioselective Aza‐Michael Reaction under Solvent‐Free Conditions.
Authors: Yang Hua‐Meng , Li Li , Li Fei , Jiang Ke‐Zhi , Shang Jun‐Yan , Lai Guo‐Qiao , Xu Li‐Wen 
Published: March 2012

AbstractThe reaction of anilines with chalcones is best catalyzed by cinchonine in combination with TmsI or TmsCl.
ChemInform Abstract: Enantioselective Allylation and Crotylation of in situ Generated β,γ‐Unsaturated Aldehydes.
Authors: McCubbin J. Adam , Maddess Matthew L. , Lautens Mark 
Published: March 2012

AbstractTreatment of vinyloxiranes with catalytic amounts of scandium triflate provides β,γ‐unsaturated aldehydes.
ChemInform Abstract: Synthesis and Antimicrobial Activity of Brominated Resorcinol Dimers.
Authors: Bouthenet Elise , Oh Ki‐Bong , Park Seungil , Nagi Navjeet K. , Lee Hyi‐Seung , Matthews Susan E. 
Published: March 2012

AbstractThe dehalogenation of compound (IIIa) also leads to a fully dehalogenated dimer.
ChemInform Abstract: Gold‐Catalyzed [3 + 2] Cycloaddition/Hydrolytic Michael Addition/Retro‐Aldol Reactions of Propargylic Esters Tethered to Cyclohexadienones.
Authors: Cai Shunyou , Liu Zheng , Zhang Weibin , Zhao Xinyang , Wang David Zhigang 
Published: March 2012

AbstractUnder strictly dry conditions, cyclohexadienones (I) and (III) rearrange to tricyclic products, whereas under air in the presence of usual moisture bicyclic furans of type (VI) and (VIII) are obtained.
ChemInform Abstract: Transition Metals in Organic Synthesis. Part 97. Silver‐Catalyzed Synthesis of Hexahalogenated 2,2′‐Bipyrroles.
Authors: Martin Rene , Jaeger Anne , Knoelker Hans‐Joachim 
Published: March 2012

AbstractThe short synthesis of the title compounds is based on the silver‐catalyzed cyclization of the homopropargylamine derivative (II).
ChemInform Abstract: An Efficient Pyrrole Synthesis via Silaphenylmercuric Triflate‐Catalyzed Cyclization of Homopropargyl Azides.
Authors: Yamamoto Hirofumi , Sasaki Ikuo , Mitsutake Mizuho , Karasudani Ayumi , Imagawa Hiroshi , Nishizawa Mugio 
Published: March 2012

AbstractA simple procedure is developed to give pyrrole derivatives in good yields.
ChemInform Abstract: Design, Synthesis and Biological Evaluation of Substituted 11H‐Benzo[a]carbazole‐5‐carboxamides as Novel Antitumor Agents.
Authors: Wang Yu‐Qin , Li Xiao‐Hua , He Qian , Chen Yi , Xie Yu‐Yuan , Ding Jian , Miao Ze‐Hong , Yang Chun‐Hao 
Published: March 2012

AbstractA series of novel 11H‐benzo[a]carbazole‐5‐carboxamide derivatives (V) is designed, synthesized, and evaluated for antitumor effects against human cancer A549 and HCT‐116 cell lines.
ChemInform Abstract: Significant Rate Acceleration in Carbonate Synthesis from Carbon Dioxide and Oxiranes Using Dimethyl Carbonate as a Recyclable Medium.
Authors: Kumar Subodh , Jain Suman L. , Sain Bir 
Published: March 2012

AbstractThe solvent has a promoting effect on the Bu4NBr‐catalyzed reaction to give cyclic carbonates in high yield.
ChemInform Abstract: Regiospecific Synthesis of 1,2‐Disubstituted (Hetero)aryl Fused Imidazoles with Tunable Fluorescent Emission.
Authors: Zhao Dongbing , Hu Junyi , Wu Ningjie , Huang Xiaolei , Qin Xurong , Lan Jingbo , You Jingsong 
Published: March 2012

AbstractTwofold amination of 1,2‐dihalo(hetero)arenes with amidines, 2‐aminopyridines or guanidines renders possible the construction of a library of heteroaryl‐fused imidazoles with complete regioselectivity.
ChemInform Abstract: Facile Synthesis of 5‐Carboxamide‐oxazolines via a Passerini 3CC—Staudinger—aza‐Wittig Sequence.
Authors: Wu Jing , Liu Jian‐Chao , Wang Long , Ding Ming‐Wu 
Published: March 2012

AbstractA modified sequence for the preparation of the title compounds (V) uses α‐chloro aldehyde (I) instead of unstable α‐azido aldehydes as substrate for the Passerini reaction.
ChemInform Abstract: Palladium‐Catalyzed Intramolecular Hydroarylation of 2‐Bromobenzyl Propargyl Ethers: A New Access to Exocyclic Isochromans.
Authors: Nandakumar Avanashiappan , Balakrishnan Krishnamoorthy , Perumal Paramasivan Thirumalai 
Published: March 2012

AbstractA stereo‐ and regioselective Pd‐catalyzed 6‐exo‐dig cyclization by intramolecular hydroarylation of propargyl ether gives functionalized isochromans in moderate yields.
ChemInform Abstract: 1,6‐Conjugated Addition of Nitromethane to (E)‐2‐Styrylchromones: A New Synthesis of Novel 2‐Substituted 4‐Arylpyrrole Derivatives.
Authors: Silva Eduarda M. P. , Silva Artur M. S. , Cavaleiro Jose A. S. 
Published: March 2012

AbstractA successful 1,6‐conjugate addition of nitromethane to (E)‐2‐styrylchromones is achieved using DBU as catalyst.
ChemInform Abstract: Ultrasound‐Promoted Synthesis of 2‐Amino‐6‐(arylthio)‐4‐arylpyridine‐3,5‐dicarbonitriles Using ZrOCl2·8H2O/NaNH2 as the Catalyst in the Ionic Liquid [bmim]BF4 at Room Temperature.
Authors: Heravi Mohammad Reza Poor , Fakhr Farnazalsadat 
Published: March 2012

AbstractThe novel protocol allows the synthesis of various pharmaceutically important pyridine products in excellent yields under mild reaction conditions.
ChemInform Abstract: Three‐Component Tandem Reaction Involving Acid Chlorides, Terminal Alkynes, and 2‐Aminoindole Hydrochlorides: Synthesis of α‐Carboline Derivatives in Aqueous Conditions via Regioselective [3 + 3] Cyclocondensation.
Authors: Gupta Sahaj , Kumar Brijesh , Kundu Bijoy 
Published: March 2012

AbstractStarting from aliphatic acid chlorides, only low yields or no α‐carbolines are obtained.