A new class of chiral diphosphines having planar chirality
Double lithiation of bis(tetra-hydroindenyl)iron followed by phosphorylation using Ph2PCl affords two different chiral diphosphines having respectively C1- and C2-symmetry. Following antipode separation, the compounds can be used as ligands in Rh-catalyzed hydrogenation (up to 97% ee) and hydroborat...
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Published in | Tetrahedron letters Vol. 40; no. 27; pp. 4977 - 4980 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
OXFORD
Elsevier Ltd
02.07.1999
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | Double lithiation of bis(tetra-hydroindenyl)iron followed by phosphorylation using Ph2PCl affords two different chiral diphosphines having respectively C1- and C2-symmetry. Following antipode separation, the compounds can be used as ligands in Rh-catalyzed hydrogenation (up to 97% ee) and hydroboration (up to 84% ee) of olefins and in Ir-catalyzed hydrogenation of imines (up to 79% ee).
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ISSN: | 0040-4039 1873-3581 |
DOI: | 10.1016/S0040-4039(99)00947-8 |