Diastereoselective, Titanium-Mediated Cyclization of ω-Vinyl Tethered Imides
Organic Letters2005Vol. 7(26), pp. 5901–5904
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Abstract
[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.
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