Verhe, R.; De Kimpe, N.; De Buyck, L., Bulletin des Societes Chimiques Belges, 1983, vol. 92, # 4, p. 371 - 396
作者:Verhe, R.、De Kimpe, N.、De Buyck, L.、Courtheyn, D.、Caenegem, L. Van、Schamp, N.
DOI:——
日期:——
Acid catalyzed ring closure reactions of electrophilic alkenes
作者:Roland Verhé、Norbert de Kimpe、Dirk Courtheyn、Laurent de Buyck、Niceas Schamp
DOI:10.1016/0040-4020(82)80073-2
日期:1982.1
3-acyl-2-alkyl-4,5-dihydrofurans. Similar cyclization of α-acyl-α,β-unsaturated esters initially afforded 3-alkoxycarbonyl-2-alkyl-4,5-dihydrofurans which were transformed into 2-acylbutanolides on further reaction with sulfuric acid.