Titanium mediated alkylidenation of substituted cycloalkenones: scope and limitations
摘要:
The conversion of the cyclopent-2-enone 5 and cyclohex-2-enones 11a, c-e into corresponding alpha'-exo-alkylidene compounds using Ti(IV) catalysis, with PPh3 and an aldehyde, is described. (C) 2004 Elsevier Ltd. All rights reserved.