Radical addition reactions of chiral phosphorus hydrides
摘要:
Intermolecular radical addition of a (1R,2R,3S,5R)-(-)-pinanediol-derived thiophosphite leads to the diastereoselective formation of organophosphorus adducts. Addition of the intermediate phosphonothioyl radical to electron-rich alkenes or alkynes occurs with retention of configuration at phosphorus. (C) 2003 Elsevier Ltd. All rights reserved.
Radical addition reactions of chiral phosphorus hydrides
摘要:
Intermolecular radical addition of a (1R,2R,3S,5R)-(-)-pinanediol-derived thiophosphite leads to the diastereoselective formation of organophosphorus adducts. Addition of the intermediate phosphonothioyl radical to electron-rich alkenes or alkynes occurs with retention of configuration at phosphorus. (C) 2003 Elsevier Ltd. All rights reserved.
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.
Radical addition reactions of chiral phosphorus hydrides
作者:Christopher M. Jessop、Andrew F. Parsons、Anne Routledge、Derek J. Irvine
DOI:10.1016/j.tetasy.2003.04.001
日期:2003.10
Intermolecular radical addition of a (1R,2R,3S,5R)-(-)-pinanediol-derived thiophosphite leads to the diastereoselective formation of organophosphorus adducts. Addition of the intermediate phosphonothioyl radical to electron-rich alkenes or alkynes occurs with retention of configuration at phosphorus. (C) 2003 Elsevier Ltd. All rights reserved.