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/
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 (<i>Z</i>)-2-BUTENE-l,4-DIOLS TO SUBSTITUTED FURANS WITH PYRIDINIUM CHLOROCHROMATE (PCC)
作者:Hisao Nishiyama、Masaharu Sasaki、Kenji Itoh
DOI:10.1246/cl.1981.1363
日期:1981.10.5
(Z)-2-Butene-1,4-diols was were efficiently converted to the corresponding substituted furans by one step oxidation–dehydration process with pyridinium chlorochromate (PCC).