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1. Diphosphine sulfides derived from 2,2′-biphosphole: novel chiral S,S ligands for palladium-catalyzed asymmetric allylic substitution.

Author

Emmanuel Robé, Wieslawa Perlikowska, Céline Lemoine, Lisa Diab, Sandrine Vincendeau, Marian Mikolajczyk, Jean-Claude Daran, and Maryse Gouygou

Subjects
*ASYMMETRIC synthesis, *CHEMICAL reactions, *HYDROCARBONS, *PETROLEUM refining
Abstract

Diphosphine sulfides derived from 2,2′-biphosphole have been efficiently synthesized in an enantiomerically pure form by a four step synthetic sequence. These S,S-ligands were used for the first time in Pd-catalyzed asymmetric allylic alkylation. Good yields and enantiomeric excess up to 73% were obtained. [ABSTRACT FROM AUTHOR]

Published
2008
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