2-Oxo-3,5-diphenyl-1,2-dihydro-furan;γ-Lacton der 2,4-Diphenyl-4-hydroxy-buten-(3)-saeure;α,γ-Diphenyl-β,γ-butenolid;3,5-diphenyl-3H-furan-2-one;3,5-diphenyl-3H-furan-2-one
Cyclohydrocarbonylation of substituted alkynes and tandem cyclohydrocarbonylation–CO insertion of α-keto alkynes catalyzed by immobilized Co–Rh heterobimetallic nanoparticles
作者:Kang Hyun Park、So Yeon Kim、Young Keun Chung
DOI:10.1039/b416657d
日期:——
The use of cobaltârhodium (Co2Rh2) heterobimetallic nanoparticles in the cyclohydrocarbonylation of substituted alkynes and tandem cyclohydrocarbonylationâCO insertion of α-keto alkynes to give 2(3H)- or 2(5H)-furanones is described.
CONVERSION OF 3-ARYL-5-PHENYL-2(3H)-FURANONES INTO 3(2H)-ISOTHIAZOLONE DERIVATIVES
作者:Hamed A. Derbala、Abdel-Saitar S. Hamad、Waleed A. El Said、Ahmed I. Hashem
DOI:10.1080/10426500108040263
日期:2001.8
Abstract Upon heating 3-aryl-S-phenyl-2(3H)-furanones (la-c) with benzylamine at 100°C in the absence of solvents, ring opening occurred with the formation of the corresponding N-benzylamides (3a-c). When the latter compounds (3a-c) were allowed to react with thionyl chloride at room temperature, the corresponding isothiazolones (4a-c) were obtained. Treatment of the isothiazolones (4a-c) with sodium