<i>Z</i>
‐Selective Hydrothiolation of Racemic 1,3‐Disubstituted Allenes: An Atom‐Economic Rhodium‐Catalyzed Dynamic Kinetic Resolution
作者:Adrian B. Pritzius、Bernhard Breit
DOI:10.1002/anie.201507623
日期:2015.12.21
A Z‐selective rhodium‐catalyzed hydrothiolation of 1,3‐disubstituted allenes and subsequent oxidation towards the corresponding allylic sulfones is described. Using the bidentate 1,4‐bis(diphenylphosphino)butane (dppb) ligand, Z/E‐selectivities up to >99:1 were obtained. The highlyatom‐economic desymmetrization reaction tolerates functionalized aromatic and aliphatic thiols. Additionally, a variety
[EN] PREPARATION METHOD FOR 1,3-DISUBSTITUTED ALLENE COMPOUND AT ROOM TEMPERATURE BASED ON METAL CARBENE CATALYTIC SYSTEM<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ ALLÈNE 1,3-DISUBSTITUÉ À TEMPÉRATURE AMBIANTE BASÉ SUR UN SYSTÈME CATALYTIQUE DE CARBÈNE MÉTALLIQUE<br/>[ZH] 一种基于金卡宾催化体系室温条件下1,3-二取代联烯类化合物的制备方法
申请人:[en]SHANGHAI INSTITUTE OF ORGANIC CHEMISTRY, CHINESE ACADEMY OF SCIENCES;[zh]中国科学院上海有机化学研究所
A highly stereoselective olefination of aldehydes using new zinc and zirconium 1,1-bimetallic reagents
作者:Charles E. Tucker、Paul Knochel
DOI:10.1021/ja00026a045
日期:1991.12
Pelter, Andrew; Smith, Keith; Jones, Kevin D., Journal of the Chemical Society. Perkin transactions I, 1992, # 7, p. 747 - 748
作者:Pelter, Andrew、Smith, Keith、Jones, Kevin D.
DOI:——
日期:——
Regiodivergent and Stereoselective Hydrosilylation of 1,3-Disubstituted Allenes
作者:Zachary D. Miller、Ruth Dorel、John Montgomery
DOI:10.1002/anie.201503521
日期:2015.7.27
regiodivergent hydrosilylation of 1,3‐disubstituted allenes have been developed. The synthesis of E allylsilanes is accomplished with palladium NHC catalysts, and trisubstituted Z alkenylsilanes are accessed with nickel NHC catalysts. Unsymmetrically substituted allenes are well tolerated with nickel catalysis and afford Z alkenylsilanes. Evidence for a plausible mechanism was obtained through an isotopic