Enantiomerically pure disulfides: key compounds in the kinetic resolution of chiral PIII-derivatives with stereogenic phosphorus
摘要:
Enantiomerically pure disulfides were reacted with various chiral P-III-derivatives with stereogenic phosphorus such as tertiary phosphines, halogenophosphines, phosphinite and phosphole under kinetic resolution conditions to afford enantiomerically enriched phosphine oxides or sulfides with ee values up to 50%. Enantiomeric excess rose to 70% under dynamic kinetic resolution-conditions in the case of tert-butylphenylchlorophosphine. (C) 2004 Elsevier Ltd. All rights reserved.
作者:Weitao Pan、Brian M. Armstrong、Philip B. Shevlin、Charles H. Crittell、Peter J. Stang
DOI:10.1246/cl.1999.849
日期:1999.8
Thermolysis of ethynyl(phenyl)iodonium triflate, 1, in the presence of cyclooctatetraene generates naphthalene in a reaction involving free C2 or in which 1 acts as a C2 donor.