New chiral phosphine–amide ligands in palladium-catalysed asymmetric allylic alkylations
摘要:
Palladium-catalysed asymmetric allylic alkylation of' 1,3-diphenyl-2-propenyl acetate 8a with a dimethyl malonate-BSA-LiOAc system has been successfully carried out in the presence of new chiral phosphine amide, such as 5, in good yields and high enantiomeric excesses of up to 85%. (C) 2001 Elsevier Science Ltd. All rights reserved.
New chiral phosphine–amide ligands in palladium-catalysed asymmetric allylic alkylations
摘要:
Palladium-catalysed asymmetric allylic alkylation of' 1,3-diphenyl-2-propenyl acetate 8a with a dimethyl malonate-BSA-LiOAc system has been successfully carried out in the presence of new chiral phosphine amide, such as 5, in good yields and high enantiomeric excesses of up to 85%. (C) 2001 Elsevier Science Ltd. All rights reserved.
Palladium-catalysed asymmetric allylic alkylation of' 1,3-diphenyl-2-propenyl acetate 8a with a dimethyl malonate-BSA-LiOAc system has been successfully carried out in the presence of new chiral phosphine amide, such as 5, in good yields and high enantiomeric excesses of up to 85%. (C) 2001 Elsevier Science Ltd. All rights reserved.