作者:Nicholas J. Cornwall、Shaun Linehan、Rex T. Weavers
DOI:10.1016/s0040-4039(97)00503-0
日期:1997.4
A radical-based 5-exo-dig cyclisation, initiated by addition of a trichloromethyl radical to an acyclic acetylenic ketone with an appropriately positioned double bond, has been employed to produce a variety of cyclic haloalkylidene cyclopentanones in moderate to excellent yields and with a high degree of stereoselectivity for the (E)-isomer. (C) 1997 Elsevier Science Ltd.