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Carbon Bond-Forming Reactions (carbon + bond-form_reaction)
Selected AbstractsChemInform Abstract: AlCl3 -Mediated Direct Carbon,Carbon Bond-Forming Reaction of ,-Hydroxyketene-S,S-acetals with Arenes and Synthesis of 3,4-Disubstituted Dihydrocoumarin Derivatives.CHEMINFORM, Issue 30 2008Cheng-Ri Piao Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] ChemInform Abstract: Copper Ion-Catalyzed Asymmetric Carbon,Carbon Bond-Forming Reaction at the 2-Position of a Piperidine Skeleton.CHEMINFORM, Issue 33 2002Osamu Onomura Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source] In situ Generation of 3,3,3-Trifluoropropanal and Its Use for Carbon,Carbon Bond-Forming Reactions.CHEMINFORM, Issue 32 2006Takashi Yamazaki Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF. [source] Catalytic Investigations of Carbon,Carbon Bond-Forming Reactions by a Hydroxyapatite-Bound Palladium Complex.CHEMINFORM, Issue 2 2006Kohsuke Mori Abstract For Abstract see ChemInform Abstract in Full Text. [source] Acid,Base Bifunctional Catalysis of Silica,Alumina-Supported Organic Amines for Carbon,Carbon Bond-Forming ReactionsCHEMISTRY - A EUROPEAN JOURNAL, Issue 13 2008Ken Motokura Dr. Abstract Acid,base bifunctional heterogeneous catalysts were prepared by the reaction of an acidic silica,alumina (SA) surface with silane-coupling reagents possessing amino functional groups. The obtained SA-supported amines (SA,NR2) were characterized by solid-state 13C and 29Si,NMR spectroscopy, FT-IR spectroscopy, and elemental analysis. The solid-state NMR spectra revealed that the amines were immobilized by acid,base interactions at the SA surface. The interactions between the surface acidic sites and the immobilized basic amines were weaker than the interactions between the SA and free amines. The catalytic performances of the SA,NR2 catalysts for various carbon,carbon bond-forming reactions, such as cyano-ethoxycarbonylation, the Michael reaction, and the nitro-aldol reaction, were investigated and compared with those of homogeneous and other heterogeneous catalysts. The SA,NR2 catalysts showed much higher catalytic activities for the carbon,carbon bond-forming reactions than heterogeneous amine catalysts using other supports, such as SiO2 and Al2O3. On the other hand, homogeneous amines hardly promoted these reactions under similar reaction conditions, and the catalytic behavior of SA,NR2 was also different from that of MgO, which was employed as a typical heterogeneous base. An acid,base dual-activation mechanism for the carbon,carbon bond-forming reactions is proposed. [source] | ||||||||||