Conversion of (Z)-1,4-dihydroxyalk-2-enes into 2,5-dihydrofurans and of alkane-1,4-diols into tetrahydrofurans via acid-catalysed cyclisation of the monoisoureas formed by their copper(i)-mediated reactions with dicyclohexylcarbodiimideElectronic supplementary information (ESI) available. Experimental data for compounds 14a–f, 15a–f, 7a–f, 22a–g, 21a–e and 2b–e: See http://www.rsc.org/suppdata/p1/b2/b203389p/
Efficient transformation of ()-2-butene-1,4-diols to α,β-butenolides: A simple synthesis of (±)-eldanolide
作者:T.K. Chakraborty、S. Chandrasekaran
DOI:10.1016/s0040-4039(01)81318-6
日期:1984.1
()-2-Butene-1,4-diols are efficiently converted to the corresponding α,β-butenolides using silver carbonate/celite and this methodology has been applied to the synthesis of (±)-eldanolide, the wing gland pheromone of the male African sugar cane borer, (wlk)