Stereochemistry of base-induced cleavage of methoxide ion on cis-and trans-1, 4-diphenylphosphorinanium salts. A different behavior with a phenyl substituent
The synthesis and characterization of pure cis-and trans-1, 4-diphenyl-1-methoxy- phosphorinanium tetrafluoroborate salts 11a and 11b, molecules designed to evaluate the effect of a phenyl substituent at C-4 on the stereochemical course of base-induced nucleophilic displacement of the methoxy group at phosphorus, was accomplished. The presence of a phenyl substituent at C-4 changes the stereochemical course of these ...