Synthesis of alkylidene cyclopentenones. Enolization of 4-substituted cyclopent-4-ene-1,3-diones
作者:Daina Loļa、Sergejs Beļakovs、Māris Gavars、Ivars Turovskis、Andrejs Ķemme
DOI:10.1016/s0040-4020(97)10367-2
日期:1998.2
The regioselective enolization of 4-substituted cyclopentene-1,3-diones 3a-e is investigated under basic and acidic conditions. Enols 1 and enolethers 6, 7 are formed with the simultaneous endocyclic double bond migration in the side chain. (C) 1998 Elsevier Science Ltd. All rights reserved.