Chiral carboxylic acid ligands derived from camphoric acid
摘要:
Versatile and convenient preparations of chiral carboxylic acid ligands, derived from camphoric acid, are described, either by esterification of camphoric dichloride or by a regioselective opening of the corresponding anhydride by a variety of alcohols or diols. Copyright (C) 1996 Elsevier Science Ltd
Chiral carboxylic acid ligands derived from camphoric acid
作者:Mark G. Moloney、Diana R. Paul、Russell M. Thompson、Emma Wright
DOI:10.1016/0957-4166(96)00328-x
日期:1996.9
Versatile and convenient preparations of chiral carboxylic acid ligands, derived from camphoric acid, are described, either by esterification of camphoric dichloride or by a regioselective opening of the corresponding anhydride by a variety of alcohols or diols. Copyright (C) 1996 Elsevier Science Ltd
The influence of ligands in Pinhey phenylation reactions using lead(IV) tetracarboxylates
作者:Mark G. Moloney、Diana R. Paul、Sophie C. Prottey、Russell M. Thompson、Emma Wright
DOI:10.1016/s0022-328x(96)06881-7
日期:1997.4
Lead(IV) tetracarboxylates, prepared from achiral and chiral carboxylic acids, have been shown to undergo metal—metal exchange with phenylboronic acid, and the phenyllead(IV) carboxylates thus generated in situ can be used for Pinhey phenylation reactions. Although the yields of these reactions are generally moderate to good, only low levels of asymmetric induction at best were observed. Possible reasons