TRIARYLBORANE DERIVATIVES, THEIR PREPARATION AND THEIR USE AS SYNTHETIC INTERMEDIATES

摘要

Triarylborane derivatives corresponding to the formula (1) IMG (1) in which R either represents a group -CR1R2R3 where R1, R2 and R3 each, independently of one another, represent a (C1-C2)alkyl or aryl group, or represents a group -CH2OR4 where R4 is a (C1-C2)alkyl or benzyl group, or represents a group -Si(R5)3 where R5 is a (C1-C2)alkyl or aryl group, R being in the 1 or 2 position of the tetrazole ring; are useful for the preparation of intermediates for use in the synthesis of angiotensin II antagonists.