TBAF,
![TBAF, tbaf的化学结构]()
tbaf的化学结构

scheme mechanistic considerations for the tbaf cyclization.

(a) f nmr spectra for titration of ansq with tbaf using

reagents and conditions: (1) tbaf; (2) ppts, 40 レ 40% (2 steps

entry ratio cis:trans tbaf yield b (%) r tfa yield b (%) ratio