A process for producing an optically active amine compound, characterized by asymmetrically hydrogenating a prochiral carbon-nitrogen double bond in the presence of a ruthenium complex represented by general formula (1) or (2) (wherein P
represents an optically active diphosphine, X represents an anionic group, and Ar represents an optionally substituted arylene group).
Direct Zincation of Functionalized Aromatics and Heterocycles by Using a Magnesium Base in the Presence of ZnCl<sub>2</sub>
作者:Zhibing Dong、Giuliano C. Clososki、Stefan H. Wunderlich、Andreas Unsinn、Jinshan Li、Paul Knochel
DOI:10.1002/chem.200801558
日期:2009.1.2
A wide range of polyfunctional aryl and heteroaryl zinc reagents were efficiently prepared in THF by using (TMP)2Mg⋅2 LiCl (TMP=2,2,6,6‐tetramethylpiperamidyl) in the presence of ZnCl2. The possible pathways of this metalation procedure as well as possible reactive intermediates are discussed. This experimental protocol expands the tolerance of functional groups and allows an efficient zincation of
BERNARDI R.; CARONNA T.; MORROCCHI S.; TRAIDI P.; VITTIMBERGA B. M., J. CHEM. SOC. PERKIN TRANS., PART 1, 1981, NO 6, 1607-1609
作者:BERNARDI R.、 CARONNA T.、 MORROCCHI S.、 TRAIDI P.、 VITTIMBERGA B. M.
DOI:——
日期:——
US9328079B2
申请人:——
公开号:US9328079B2
公开(公告)日:2016-05-03
Photoinitiated substitution reactions of heterocyclic bases: reaction with alkenes
作者:Rosanna Bernardi、Tullio Caronna、Sergio Morrocchi、Piero Traldi、Bruno M. Vittimberga
DOI:10.1039/p19810001607
日期:——
A method is described for the synthesis of allyl heterocyclic bases by a photoinduced substitutionreaction of cyanoheterocyclic bases and certain alkenes.