Synthesis of fluoroalkyl-derivatised BINAP ligands
摘要:
Fluoroalkyl-derivatised R-BINAP ligands have been prepared, characterised and applied in the ruthenium-catalysed asymmetric hydrogenation of dimethyl itaconate, (C) 2001 Elsevier Science Ltd. All rights reserved.
A general method to fluorous ponytail-substituted aromatics
摘要:
Palladium-catalyzed olefination of aryl halides led to a variety of fluorous ponytail-substituted, functionalized aryl compounds with good to excellent yields. The same chemistry was also applied to the synthesis of binaphathols bearing fluorinated ponytails. (C) 2001 Elsevier Science Ltd. All rights reserved.
Asymmetric Aza-MoritaBaylisHillman Reaction ofN-Sulfonated Imines with Methyl Vinyl Ketone Catalyzed by Chiral Phosphine Lewis Bases Bearing Perfluoroalkanes as “Pony Tails”
作者:Min Shi、Lian-Hui Chen、Wen-Dong Teng
DOI:10.1002/adsc.200505123
日期:2005.11
In the aza-Morita–BaylisHillman reaction of N-sulfonated imines (N-arylmethylidene-4-methylbenzenesulfonamides and others) with methyl vinyl ketone (MVK), we found that in the presence of a catalytic amount of the chiral phosphine Lewis bases (R)-(−)-6,6′-bis[tris(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)silyl]-2′-(diphenylphosphanyl)-[1,1′]binaphthalenyl-2-ol LB2 and (R)-(−)-6,6′-(3,3,4,4,5, 5
New approaches to fluorinated ligands and their application in catalysis
作者:Weiping Chen、Lijin Xu、Yulai Hu、Anna M Banet Osuna、Jianliang Xiao
DOI:10.1016/s0040-4020(02)00213-2
日期:2002.5
Simple and generic approaches to fluorous soluble ligands have been developed and applied to the synthesis of various fluorinated arylphosphines including polymeric ones. The utility of some of these ligands has been demonstrated in catalysis in supercritical CO2 (scCO(2)) and fluorous solvents. (C) 2002 Elsevier Science Ltd. All rights reserved.