bluuebunny/crossref_metadata_2025_split huggingface dataset:
Durstige Pflanzen senden Signale. Trockenstress produziert Ultraschall
Authors: Mayr Stefan 
Published: December 2010

AbstractDie Ultraschallemissionsanalyse, eine Methode aus dem Bereich der zerstörungsfreien Prüfung, kann auch zur Analyse von Schallemissionen in Pflanzen eingesetzt werden. Im Wassertransportsystem von Pflanzen treten Schallwellen im hörbaren‐ und im Ultraschallbereich auf, wenn hohe Zugspannungen zum plötzlichen Abreißen von Wasserfäden führen. Diese Kavitationen werden durch ein Übertreten von Luft aus benachbarten Leitelementen ausgelöst. Ultraschallereignisse können aber auch beim Frieren von austrocknenden Holzproben beobachtet werden. Die Ultraschallemissionsanalyse ermöglicht ein Monitoring von Kavitationen in Abhängigkeit von der Zugspannung, die Interpretation der registrierten Ereignisse ist allerdings oft schwierig. Zukünftige technische Entwicklungen und Forschungsaktivitäten werden es ermöglichen, diese pflanzlichen Schallemissionen besser zu verstehen.
Elf Millionen Jahre verschollen: die Laotische Felsenratte
Authors: Schmitz Jürgen 
Published: December 2010

AbstractAls lebende Fossilien werden Arten bezeichnet, die über Jahrmillionen ihren Bauplan nur wenig geändert haben, aber auch solche, die als Überbleibsel einer einst großen Artenvielfalt heute noch existieren. Dabei ist deren Herkunft nicht immer leicht erkennbar. Die Laotische Felsenratte ist ein solches lebendes Fossil, dessen Vergangenheit nun durch viele Indizien eindeutig rekonstruiert werden konnte.
Spektakuläres Bernsteinvorkommen
Authors: Stebner Frauke , Rust Jes 
Published: December 2010

AbstractIn der indischen Provinz Gujarat wurde ein riesiges Bernsteinvorkommen entdeckt, welches eine Fülle pflanzlicher und tierischer Einschlüsse enthält und in vielerlei Hinsicht von großem wissenschaftlichem Interesse ist. Die in dem Bernstein enthaltenen Tiere weisen eine einzigartige Art der Erhaltung auf. Die systematische Auswertung der fossilen Einschlüsse wirft ein neues Licht auf die geologische Geschichte Indiens und seiner Flora und Fauna.
Der Freiburger Bächle‐Egel und die Alpha‐Taxonomie
Authors: Kutschera Ulrich 
Published: December 2010

AbstractNeuentdeckungen und Beschreibungen relativ großer Tier‐ beziehungsweise Pflanzenarten (Makroorganismen) für Mitteleuropa sind nach 250 Jahren Biodiversitätsforschung eine Seltenheit. Mit Hilfe von DNA‐Sequenzanalysen wurde nun dennoch in Süddeutschland eine neue Egelart identifiziert, deren Beschreibung bereits vor 27 Jahren begann.
Was hat Mikroskopieren mit Köhlern zu tun?
Authors: Schrödel Andrea 
Published: December 2010

AbstractDie Benutzung des Lichtmikroskops gehört zum Alltag in zytologisch und histologisch arbeitenden Laboren. Trotz täglicher Benutzung kennen viele jedoch nicht einmal die Funktionsteile eines Mikroskops. Oder wissen Sie, wie man die exakte Ausleuchtung des Sehfeldes an einem Mikroskop einstellt?
Nachrichten des Verbandes Biologie, Biowissenschaften & Biomedizin in Deutschland
Authors: Klug Jörg 
Published: December 2010

AbstractAus den Fachgesellschaften:Gesellschaft für VersuchstierkundeNeue Experten‐DatenbankAusbildung und Karriere:BIOTECHNICA Studienpreis 2010Wissenschaft und Gesellschaft:Einspruch!Aus den Landesverbänden:HessenBaden‐Württemberg
Biosynthesis of the Spiroacetal Suite in Bactrocera tryoni
Authors: Booth Yvonne K. , Kitching William , De Voss James J. 
Published: December 2010

AbstractIn pursuit of a more environmentally benign method of controlling the highly pestiferous Queensland fruit fly, Bactrocera tryoni, the biosynthesis of the minor components in the suite of spiroacetals released by females has been investigated. This follows on the biosynthetic definition of the pathway to the major component, (E,E)‐1. The origins of the C12 and C13 spiroacetals (E,E)‐2 and (E,E)‐3, respectively, have been investigated by the administration of over 30 deuterated potential precursors. Analysis of the relative incorporation levels and identification of some of the exceptionally minor spiroacetals that were biosynthesised established that B. tryoni processes fatty acids to 2,6‐dioxygenated precursors by a modified β‐oxidation pathway, with a suite of putative cytochromes P450 employed in the crucial oxidative steps, prior to cyclisation of the proposed ketodiol.
ChemInform Abstract: Ternary Nitride GaFe3N: An Experimental and Quantum‐Theoretical Study.
Authors: Burghaus Jens , Wessel Michael , Houben Andreas , Dronskowski Richard 
Published: December 2010

AbstractThe thermodynamic stability of GaFe3N (space group Pm$\bar 3$m) is investigated by DFT calculations and the Vegard‐like behavior of the compound discussed earlier is resolved using Mo Kα1 XRD.
ChemInform Abstract: Noncentrosymmetric Sodium Borate: Crystal Growth, Characterization and Properties on Na2B4O12H10.
Authors: Wang Yongjiang , Pan Shilie , Hou Xueling , Liu Gang , Wang Jide , Jia Dianzeng 
Published: December 2010

AbstractTransparent, good quality and fairly large‐sized single crystals of the title compound are prepared from aqueous solutions of NaOH and H3BO3 by the standard evaporation method (45 °C, 3 weeks) and hydrothermally (autoclave, 180 °C, 2 d).
ChemInform Abstract: Aluminosilicate Relatives: Chalcogenoaluminogermanates Rb3(AlQ2)3(GeQ2)7 (Q: S, Se).
Authors: Rothenberger Alexander , Shafaei‐Fallah Maryam , Kanatzidis Mercouri G. 
Published: December 2010

AbstractThe new title compounds are prepared by heating stoichiometric amounts of Rb2S5 or Rb2Se, Al, Ge, and S or Se (850 °C, 3 d, ≈100% yield).
ChemInform Abstract: A New Oxomolybdate Component Extracted from the “Virtual Dynamic Library” Yielding the Macrocyclic Anion [(Mo8VIO28)4 (Mo2VO2S2)4] 24‐.
Authors: Korenev Vladimir S. , Boulay Antoine G. , Dolbecq Anne , Sokolov Maxim N. , Hijazi Akram , Floquet Sebastien , Fedin Vladimir P. , Cadot Emmanuel 
Published: December 2010

AbstractK(NH4)23 [({Mo8O28}{Mo2O2S2}) 4]·48H2O is synthesized by mixing an aqueous NH4OAc solution of (NH4)6Mo7O24 and a suspension of K2I2 [Mo10O10S10(OH)10 (H2O)5] in water acidified by H2SO4 (40→25 °C, 4—6 h, 38% yield).
ChemInform Abstract: (In1‐yMny)MnO3 (1/9 ≤ y ≤ 1/3): Unusual Perovskite with Unusual Properties.
Authors: Belik Alexei A. , Matsushita Yoshitaka , Tanaka Masahiko , Takayama‐Muromachi Eiji 
Published: December 2010

AbstractIn1‐xMnO3‐1.5x (x = 0.1, 0.2, 0.3, 0.4, 0.5) samples are prepared from stoichiometric mixtures of In2O3 and Mn2O3 (Pt capsules, 6 GPa, 1773 K, 40 min) and characterized by powder XRD and magnetic measurements.
ChemInform Abstract: Highly Enantioselective Desymmetrizations of meso‐Anhydrides.
Authors: Schmitt Ellen , Schiffers Ingo , Bolm Carsten 
Published: December 2010

AbstractLow molecular cyclohexane‐based organocatalysts promote highly enantioselective desymmetrizations of cyclic meso‐anhydrides with up to 96% e.e.
ChemInform Abstract: Chitosan Aerogel: A Recyclable, Heterogeneous Organocatalyst for the Asymmetric Direct Aldol Reaction in Water.
Authors: Ricci Alfredo , Bernardi Luca , Gioia Claudio , Vierucci Simone , Robitzer Mike , Quignard Francoise 
Published: December 2010

AbstractAerogel microspheres of chitosan are successfully applied as a chiral catalyst for the asymmetric aldol reaction of isatin (I) and p‐nitrobenzaldehyde (IV) with several ketones.
ChemInform Abstract: Addition of a Silyl Ketene Acetal to α,β‐Unsaturated Cyclic Anhydrides.
Authors: Gnaneshwar Rudhramyna , Sivaram Swaminathan 
Published: December 2010

AbstractAddition of silyl ketene acetal (II) to itaconic anhydride (I) in the presence of a Lewis acid, Yb(OFf)3, proceeds in a 1,4‐fashion.
ChemInform Abstract: Intramolecular [1 + 4 + 1] Cycloaddition: Establishment of the Method.
Authors: Taber Douglass F. , Guo Pengfei , Guo Na 
Published: December 2010

AbstractAn optimized sequence is elaborated for the preparation of cyclopropane‐containing bicyclic compounds which are transformed to polycyclic ring systems.
ChemInform Abstract: The Remarkable Solvent Effect on Zn(OAc)2‐Catalyzed Hydrosilylation of Ketones.
Authors: Ozasa Hiroki , Kondo Kazuhiro , Aoyama Toyohiko 
Published: December 2010

AbstractThe combination of Zn(O‐Ac)2 and DMF is found to effectively hydrosilylate various ketones.
ChemInform Abstract: Thermal Retro‐Aldol Reactions Using Fluorous Ether F‐626 as a Reaction Medium.
Authors: Fukuyama Takahide , Kawamoto Takuji , Okamura Takahiro , Denichoux Aurelien , Ryu Ilhyong 
Published: December 2010

AbstractThe high‐boiling F‐626 as an recyclable medium allows the preparation of the target ketones, which are formed together with 2‐methylene ketones as by‐products.
ChemInform Abstract: Synthesis and Synthetic Applications of Samarium Enolates of Unmasked Amides: Efficient Synthesis of 3‐Aminoamides and 3‐Amino‐2‐chloroamides.
Authors: Concellon Jose M. , Rodriguez‐Solla Humberto , Concellon Carmen , Simal Carmen , Alvaredo Noemi 
Published: December 2010

AbstractIn situ prepared samarium acetamide and chloroacetamide enolates react with the aldimines to yield the target compounds.
ChemInform Abstract: Facile Synthesis of α,α‐Difluoroalkyl Aryl Thioethers and Their Oxidative Desulfurization—Fluorination to Trifluorides.
Authors: Hugenberg Verena , Haufe Guenter 
Published: December 2010

AbstractDifluoroacetates (II) are synthesized via two succeeding fluoro‐Pummerer rearrangements using the combination of N‐haloimides as electrophiles and excess Olah′s reagent as the fluoride source.
ChemInform Abstract: The Synthesis and Characterization of Some Novel Thioethers: Thio‐Substituted [3]Cumulenes, ‐1‐Buten‐3‐ynes and Buta‐1,3‐dienes.
Authors: Ibis Cemil , Sahin Aysecik 
Published: December 2010

AbstractThe reaction of the pentachlorobutadiene (I) with several thiols yielding butenynes and butadienes and reaction of the products to cumulenes, e.g. (VI), are described.
ChemInform Abstract: Enantioselective Synthesis of Axially Chiral Biaryls by the Pd‐Catalyzed Suzuki—Miyaura Reaction: Substrate Scope and Quantum Mechanical Investigations.
Authors: Shen Xiaoqiang , Jones Gavin O. , Watson Donald A. , Bhayana Brijesh , Buchwald Stephen L. 
Published: December 2010

AbstractA broad spectrum of target compounds is prepared under optimized conditions A) using either enantiomer of the ligand KenPhos.
ChemInform Abstract: Regioselective Control Using a Catalyst Switch in the Reaction of Diarylmethyl Chlorides with Allyltributylstannane.
Authors: Peng Bo , Feng Xiujuan , Zhang Xin , Ji Liyun , Bao Ming 
Published: December 2010

AbstractDearomatization or Stille‐type cross‐coupling reaction takes place using the same diarylmethyl chlorides and allyltributyltin but different catalysts (Pd2(dba)3/PPh3 or PCy3·HBF4, respectively).
ChemInform Abstract: Copper‐Free Sonogashira Coupling in Water with Linear Polystyrene‐Stabilized PdO Nanoparticles.
Authors: Teratani Takuto , Ohtaka Atsushi , Kawashima Takahiro , Shimomura Osamu , Nomura Ryoki 
Published: December 2010

AbstractThe method is investigated with various aryl iodides and bromobenzene.
ChemInform Abstract: Silver‐Catalyzed Coupling Reactions of Alkyl Halides with Indenyllithiums.
Authors: Someya Hidenori , Yorimitsu Hideki , Oshima Koichiro 
Published: December 2010

AbstractThe reaction, catalyzed by AgBr, is applied to a wide range of secondary and tertiary alkyl halides to afford the corresponding indene or fluorene [cf.
ChemInform Abstract: Diastereoselective Synthesis of 1‐Alkyl‐2,4,6‐trioxoperhydropyrimidine‐5‐spiro‐3′‐ (1′,2′,3′,4′‐tetrahydroquinolines).
Authors: Krasnov Konstantin A. , Kartsev Victor G. , Khrustalev Victor N. 
Published: December 2010

AbstractThe target products are obtained from 1‐monoalkylbarbituric acids with o‐tert‐aminobenzaldehydes to afford mostly diastereomeric mixtures from the N‐methyl substrate (I) and single diastereomers from the N‐t‐Bu‐ substrate (V).
ChemInform Abstract: The First Example of Ring Expansion of N‐Tosylaziridines to 2‐Aroyl‐N‐tosylazetidines with Nitrogen Ylides in an Aqueous Medium.
Authors: Garima Garima , Srivastava Vishnu P. , Yadav Lal Dhar S. 
Published: December 2010

AbstractTertiary amines catalyze the ring expansion of aziridines (I) to 2‐aroyl‐azetidines (III) with nitrogen ylides formed in situ from phenacyl bromide derivatives (II).
ChemInform Abstract: Asymmetric Vinylogous Michael Reaction of α,β‐Unsaturated Ketones with γ‐Butenolide under Multifunctional Catalysis.
Authors: Huang Huicai , Yu Feng , Jin Zhichao , Li Wenjun , Wu Wenbin , Liang Xinmiao , Ye Jinxing 
Published: December 2010

AbstractA direct organocatalytic asymmetric vinylogous Michael reaction of γ‐butenolide (II) with α,β‐unsaturated ketones (I) is investigated using a multifunctional primary amine salt.
ChemInform Abstract: Domino Rhodium(I)‐Catalyzed Reactions for the Efficient Synthesis of Substituted Benzofurans and Indoles.
Authors: Boyer Alistair , Isono Naohiro , Lackner Sebastian , Lautens Mark 
Published: December 2010

AbstractRhodium catalysts promote the transformation of o‐alkynyl phenols and anilines to benzofurans (II) and indoles (IV), respectively.
ChemInform Abstract: Synthesis of Highly Functionalized 2,5‐Disubstituted Pyrrolidines via an aza‐Morita—Baylis—Hillman‐Type Reaction.
Authors: Kitulagoda James E. , Palmelund Anders , Aggarwal Varinder K. 
Published: December 2010

AbstractThe aza‐Morita—Baylis—Hilman reaction of cyclic O,N‐acetals with Michael acceptors gives a series of 2,5‐trans substituted pyrrolidines with good to excellent diastereoselectivity.
ChemInform Abstract: Chemistry of Iminofurans. Unusual Reaction of 3‐(4‐Bromophenylimino)‐5‐phenyl‐2,3‐dihydrofuran‐2‐one with Malononitrile and Ethyl Cyanoacetate.
Authors: Rubtsov A. E. , Aliev Z. G. , Maiorova O. A. 
Published: December 2010

AbstractTitle reaction gives pyrrole derivatives (III).
ChemInform Abstract: Low‐Valent Zirconocene‐Mediated Cyclization of γ,δ‐Unsaturated Oximes.
Authors: Kitamura Mitsuru , Shintaku Yuki , Kudo Daisuke , Okauchi Tatsuo 
Published: December 2010

AbstractTreatment of γ,δ‐unsaturated syn oximes bearing an N‐methoxy group with low‐valent zirconocene prepared by Negishi′s procedure results in cyclization to dihydropyrazoles.
ChemInform Abstract: Furan Ring Opening—Pyrrole Ring Closure: Simple Route to 5‐Alkyl‐2‐(aminomethyl)pyrroles.
Authors: Butin Alexander V. , Nevolina Tatyana A. , Shcherbinin Vitaly A. , Uchuskin Maxim G. , Serdyuk Olga V. , Trushkov Igor V. 
Published: December 2010

AbstractThe synthesis of the title pyrroles is based on hydrolytic ring opening of substrates (I) followed by pyrrole ring closure of ketones (II) under Paal—Knorr conditions.
ChemInform Abstract: Metal‐Free Tandem Reaction in Water: An Efficient and Regioselective Synthesis of 3‐Hydroxyisoindolin‐1‐ones.
Authors: Zhou Yu , Zhai Yun , Li Jian , Ye Deju , Jiang Hualiang , Liu Hong 
Published: December 2010

AbstractThe title reaction represents an atom‐economical and environmentally friendly transformation with high functional‐group tolerance.
ChemInform Abstract: A Practical Synthesis of Bis(indolyl)methanes Employing Boric Acid.
Authors: Yadav Jhillu S. , Gupta Manoj K. , Jain Ruchi , Yadav Nagendra N. , Reddy Basi V. Subba 
Published: December 2010

AbstractA new method for the synthesis of the title compounds such as (III), (V), (VII) and (IX) via B(OH)3‐mediated coupling of indoles with carbonyl compounds under solvent‐free conditions is developed.
ChemInform Abstract: A Simple Preparative Synthesis of Epoxy[1,3]oxazino(or oxazolo)[2,3‐a]isoindoles and Their Thia Analogues via IMDAF.
Authors: Zubkov Fedor I. , Galeev Timur R. , Nikitina Eugeniya V. , Lazenkova Irina V. , Zaytsev Vladimir P. , Varlamov Alexey V. 
Published: December 2010

AbstractThe intramolecular furan Diels—Alder reaction (IMDAF) of azomethines, prepared from furfurals and amino alcohols or thiols, with dienophiles (III) and (IX) affords the title skeletons in low to moderate yields.
ChemInform Abstract: Synthesis of 5‐Aminoisoxazolines from N‐Allyl Compounds and Nitrile Oxides via Tandem Isomerization‐1,3‐dipolar Cycloaddition.
Authors: Bujak Piotr , Krompiec Stanislaw , Malarz Joanna , Krompiec Michal , Filapek Michal , Danikiewicz Witold , Kania Magdalena , Gebarowska Katarzyna , Grudzka Iwona 
Published: December 2010

AbstractThe successful isomerization of N‐allylazole uses KOH/18‐crown‐6 [cf.
ChemInform Abstract: Synthesis of Functionalized 3‐Hydroxypiperidines.
Authors: Wijdeven Marloes A. , van Delft Floris L. , Rutjes Floris P. J. T. 
Published: December 2010

AbstractFrom known cyanohydrin (I) three hydroxypiperidine building blocks, (III), (IX) and (XV) are prepared and used for the synthesis of 24 title compounds, based on N‐acyliminium chemistry and cross‐metathesis as the key steps.
ChemInform Abstract: A Double Mannich Approach to the Synthesis of Substituted Piperidones—Application to the Synthesis of Substituted E‐Ring Analogues of Methyllycaconitine.
Authors: Chan Yinman , Balle Jared , Sparrow J. Kevin , Boyd Peter D. W. , Brimble Margaret A. , Barker David 
Published: December 2010

AbstractA set of E‐ring analogues (X) of the delphinium alkaloid methyllycaconitine (XI) is prepared from title compounds (VII) using established transformations.
ChemInform Abstract: Synthesis of 1H‐Pyrrolo[3,2‐c]quinoline Derivatives via Palladium‐Catalyzed Heteroannulation of 2‐Aryl‐3‐iodo‐4‐(phenylamino)quinolines and 4‐(N,N‐Allylphenylamino)‐2‐aryl‐3‐iodoquinolines.
Authors: Mphahlele Malose J. , Lesenyeho Lehlohonolo G. , Makelane Hlamulo R. 
Published: December 2010

AbstractComplete selectivity is observed in the Pd‐catalyzed ring closure of the N‐allylated (IV) to yield the tricyclic products (V) exclusively.
ChemInform Abstract: Expeditious Synthesis of Functionalized Piperidines by Regioselective Ring Opening of Aziridines by Enals Catalyzed by an N‐Heterocyclic Carbene.
Authors: Singh Santosh , Rai Vijai K. , Singh Pankaj , Yadav Lal Dhar S. 
Published: December 2010

AbstractKetones of type (I), previously prepared by ring opening of aziridines with enals, undergo a regio‐ and diastereoselective intramolecular aza‐Michael addition to afford cis‐piperidinones in high yields.
ChemInform Abstract: Benzoyl Peroxide (BPO)‐Promoted Oxidative Trifluoromethylation of Tertiary Amines with Trimethyl(tifluoromethyl)silane.
Authors: Chu Lingling , Qing Feng‐Ling 
Published: December 2010

AbstractThe first examples of an oxidative transformation of tertiary amines promoted by benzoyl peroxides without transition metal are given.
ChemInform Abstract: Synthesis of 3‐Amino‐4,5‐dihydro(5H)4‐oxothieno[3,2‐c]quinoline‐2‐carboxylic Acids and Their Alkyl Esters.
Authors: Jayashree A. , Darbarwar Malleshwar 
Published: December 2010

Abstract4‐Chloro‐3‐cyanoquinolinones (I) readily undergo cyclization with thioglycolic acid or its alkyl esters (II) furnishing the title compounds (III) (9 examples) in good yields.
ChemInform Abstract: Efficient Syntheses of 3H‐Azuleno[8,1‐cd]pyridazines and Their Thermal and Photochemical Reactions.
Authors: Wu Chi‐Phi , Devulapally Rammohan , Li Tsung‐Chieh , Ku Chien‐Kuo , Chung Hsien‐Chung 
Published: December 2010

AbstractA convenient one‐pot procedure is developed for the synthesis of the title compounds (III) and (VI) via acid‐catalyzed imine formation, intramolecular cyclization and dehydrogenation.
ChemInform Abstract: One‐Pot Synthesis of 2,3‐Dihydro‐2‐thioxoquinazolin‐4(1H)‐ones from Nitrocompounds with the Aid of Tin(II) Chloride.
Authors: Wang Man‐Man , Dou Guo‐Lan , Shi Da‐Qing 
Published: December 2010

AbstractThe novel reductive cyclization of 2‐nitrobenzamides with isothiocyanates has advantages as easily accessible starting materials and isolation of products via simple recrystallization.
ChemInform Abstract: A Practical and Versatile Approach Toward a One‐Pot Synthesis of 2,3‐Disubstituted 4(3H)‐Quinazolinones.
Authors: Dabiri Minoo , Salehi Peyman , Bahramnejad Mahboobeh , Alizadeh Mohsen 
Published: December 2010

AbstractA general and efficient method for the synthesis of the title compounds via iodine‐mediated three‐component reaction of isatoic anhydride (I) with aldehydes and amines is developed.
ChemInform Abstract: One‐Pot Synthesis of 2,4‐Diamino‐Substituted Thieno[3,2‐d]pyrimidines.
Authors: Li Xiaoying , Zhang Yangming , Tang Jie , Yang Fan , Nan Fajun 
Published: December 2010

AbstractAn efficient and practical procedure for the synthesis of the title compounds such as (IV) and (VI) starting from 2,4‐dichlorothieno[3,2‐d]pyrimidine (I) is presented.
ChemInform Abstract: A Novel Synthesis of Imatinib and Its Intermediates.
Authors: Liu Haiyan , Xia Wenpin , Luo Yu , Lu Wei 
Published: December 2010

AbstractAn efficient and convenient method for the synthesis of the anticancer drug imatinib (X) using the condensation of the two pivotal intermediates imine (VIII) and acid (IX) as the key step, is developed.
ChemInform Abstract: An Efficient Synthesis of trans‐N‐{2‐ [4‐(2‐Methoxyphenyl)piperazinyl] ethyl}‐N‐(2‐pyridyl)‐N‐(4‐tosyloxymethylcyclohexane)carboxamide, a Precursor of [18F]Mefway for Imaging 5‐HT1A Receptor.
Authors: Choi Jae Yong , Kim Chul Hoon , Kim Jung Young , Ha Hyun‐Joon , Ryu Young Hoon 
Published: December 2010

AbstractAn efficient synthesis for the precursor (V) of [18F]mefway is presented which includes improved coupling and reduction procedures.
ChemInform Abstract: Heterocyclizations of Functionalized Heterocumulenes with C,N‐, C,O‐, and C,S‐Binucleophiles. Part 12. Synthesis of Alkyl 3‐Aryl‐1,5‐dioxo‐2,3,5,6‐tetrahydro‐1H‐pyrimido [1,6‐a]quinoxaline‐4‐carboxylates
Authors: Kushnir O. V. , Vovk M. V. 
Published: December 2010

Abstractvia reaction of quinoxalin‐2‐ylidene derivatives (I) with α‐chlorobenzyl isocyanates (9 examples)
ChemInform Abstract: A Convenient Synthesis of 1,4‐Benzothiazepines from 1,3‐Benzothiazines via the Ring Transformation of β‐Lactam‐Condensed 1,3‐Benzothiazine Derivatives.
Authors: Fodor Lajos , Csomos Peter , Csampai Antal , Sohar Pal 
Published: December 2010

AbstractStaudinger reaction of benzothiazines with chloroacetyl chloride provides trans‐lactams (III) selectively.
ChemInform Abstract: Synthesis and X‐Ray Crystal Structures of Chiral, Nonracemic 5,6‐Dihydro‐4H‐1,3,4‐oxadiazines.
Authors: Hitchcock Shawn R. , Dean Melissa A. , Kelley Christopher J. , Edler Kate L. , Ferrence Gregory M. 
Published: December 2010

AbstractThe Ephedra‐based oxadiazines (IV), (VII) and (VIII) are synthesized as potential tools for conducting asymmetric syntheses via intramolecular chiral relay.
ChemInform Abstract: Dihydro‐3‐(triphenylphosphoranylidene)‐2,5‐thiophendione: A Convenient Synthon for the Preparation of Substituted 1,4‐Thiazepin‐5‐ones and Piperidinones via the Intermediacy of Thioacids.
Authors: Crich David , Rahaman Md. Yeajur 
Published: December 2010

AbstractThe title synthon (III) reacts with a series of aldehydes to give monothioitanoic anhydride derivatives such as (V).
ChemInform Abstract: Microwave‐Assisted Synthesis of Enantiomerically Pure Allylboronates.
Authors: Cmrecki Vesna , Eichenauer Nils C. , Frey Wolfgang , Pietruszka Joerg 
Published: December 2010

AbstractThe chiral bis(methoxydiphenylmethyl)dioxaborolanyl auxiliary shows a surprisingly high stability by utilizing microwave assisted conditions.
ChemInform Abstract: Reactions of Selenium Dichloride and Dibromide with Divinyl Sulfone: Synthesis of Novel Four‐ and Five‐Membered Selenium Heterocycles.
Authors: Potapov Vladimir A. , Kurkutov Evgeny O. , Musalov Maxim V. , Amosova Svetlana V. 
Published: December 2010

AbstractProducts (IV) and (VII) are formed during purification by silica gel chromatography via dehalogenation of the primary products (III) and (VI).
ChemInform Abstract: Three New Cardenolides from Methanol Extract of Stems and Twigs of Nerium oleander.
Authors: Bai Liming , Zhao Ming , Toki Asami , Sakai Jun‐ichi , Yang Xiao‐yang , Bai Yuhua , Ando Mariko , Hirose Katsutoshi , Ando Masayoshi 
Published: December 2010

AbstractCardenolides B‐1 (I) and B‐2 (II) are isolated together with oleagenin (III), the aglycon of oleaside A, which is isolated for the first time from natural sources.