Chiral phosphorous compounds

Details Chiral phosphorous compounds Chiral phosphorous compounds

2008-03-28

2011-11-29

Zucker, Paul A (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus containing

C568S002000

Reexamination Certificate

active

08067642

ABSTRACT:
The present invention provides P-chiral compounds of general formulae (II) and (III): in formula (II) at least one of R21, R25, R26and R30is independently selected from CM alkyl, CF3, C1-4alkoxy, phenyl and benzyloxy and the remaining substituents selected from R21, R25, R26and R30are hydrogen; at least one of R22, R24, R27and R29are independently selected from C1-14alkyl, CF3, C1-14alkoxy, phenyl and benzyloxy and the remaining substituents selected, from R22, R24, R27and R29are hydrogen; and R23and R28 are independently selected from hydrogen, CM alkyl, CF3, C1-14alkoxy, phenyl and benzyloxy; in formula (III) at least one of R21, R25, R26and R30is independently selected from phenyl and benzyloxy and the remaining substituents selected from R21, R25, R−26and R30are hydrogen; and R22, R−23R24, R27, R28and R29are independently selected from hydrogen, C1-14alkyl, CF3, C1-14alkoxy, phenyl and benzyloxy.

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