E. Lee et al., BETA-ALKOXYACRYLATES IN RADICAL CYCLIZATIONS - REMARKABLY EFFICIENT OXACYCLE SYNTHESIS, Tetrahedron letters, 34(30), 1993, pp. 4831-4834
Beta-alkoxyacrylates were found to be exceptionally efficient radical
acceptors in radical-mediated intramolecular cyclizations. For example
, reaction of 5-bromo-2-pentanol with ethyl propiolate, tributylstanna
ne-mediated radical cyclization, and hydrolysis yielded (+/-)-(cis-6-m
ethyltetrahydropyran-2-yl)acetic acid, a known component of civet.