Diastereoselective, Titanium-Mediated Cyclization of ω-Vinyl Tethered Imides
作者:Soumava Santra、Nikolai Masalov、Oleg L. Epstein、Jin Kun Cha
DOI:10.1021/ol0525157
日期:2005.12.1
[reaction: see text] Diastereoselective reductive coupling reactions of omega-vinyl tethered cyclic imides are achieved by a preexisting stereocenter at an allylic position. Particularly noteworthy is the effective use of a 1:2 mixture of Ti(O-i-Pr)4 and n-BuLi to afford the N-acylhemiaminal products in good yields.