DOI: 10.1039/A607487A
(Paper)
Reference Section for: Chem. Commun., 1997, 239-240
Radical cyclization reactions of 4-bromo vinylogous-esters, vinylogous-amides and enones
(Note: The full text of this document is currently only available in the PDF Version )
Chin-Kang Sha, Wei-Hong Tseng, Kuan-Tsau Huang, Kuan-Miao Liu, Herng-Yih Lin and San-Yan Chu
Abstract
Radicals generated from 4-bromo vinylogous-esters, vinylogous-amides and enones cyclize to a tethered acetylene side-chain preferentially at the γ-position; theoretical calculations of the spin density of the radicals and the relative stability of the radical intermediates are performed to rationalize the experimental observations.
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