The Di-t-Butylphosphinyl Directed ortho Metalation Group. Synthesis of Hindered Dialkylarylphosphines

1 April 1998

journal article
letter
Published by Georg Thieme Verlag KG in Synlett

Vol. 1998 (4) , 422-424
https://doi.org/10.1055/s-1998-1655

Abstract

Using the new P(O)^tBu₂ Directed Metalation Group, a variety of ortho-substituted aryl di-t-butylphenylphosphine oxides (2a-k) have been prepared, its relative metalation ability has been established, and reduction and homocoupling products (Scheme 4) have been obtained.

Keywords

DIRECTED ORTHO METALATION
ORTHO-SUBSTITUTED ARYLDI-T-BUTYLPHOSPHINE OXIDES
2′-BIS(DI-T-BUTYLPHOSPHINYL)BIPHENYL
COMPARATIVE METALATION OF DIRECTED METALATION GROUPS

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