MULLER, PAUL;PAUTEX, NICOLE, HELV. CHIM. ACTA, 71,(1988) N 7, C. 1630-1637
作者:MULLER, PAUL、PAUTEX, NICOLE
DOI:——
日期:——
From Dichlorocyclopropanes to Furans and Cyclopentadienes<i>via</i>Vinylcarbenes
作者:Paul Müller、Nicole Pautex
DOI:10.1002/hlca.19880710707
日期:1988.11.2
Base-induced elimination of dichlorocarbene adducts2 to 9-alkoxyphen threnes 1 leads to furans 6, presumably via cyclopropenes 3 which undergo rearrangement to vinylcarbenes 4 and CH insertion. By the same sequence, the 9-substituted alkylphenanthrene adduct 10 and 14 afford cyclopentadienes 11 and 15. Carbene adducts of simple enol ethers, however, react differently and give preferentially 2-chloroalken-2-ones