Methyltrioxorhenium is an efficient catalyst for the oxidative ring opening of several substituted furans to enediones using urea hydrogen peroxide. (C) 1998 Elsevier Science Ltd. All rights reserved.
A convenient approach to furan derivatives by I2-induced cyclisation of 2-alkenyl substituted 1,3-dicarbonyl compounds
作者:R. Antonioletti、F. Bonadies、A. Scettri
DOI:10.1016/s0040-4039(00)80660-7
日期:1988.1
Synthesis and selected reactions of ethyl 5-(1-chloroethyl)-2-methylfuran-3-carboxylate
作者:L. M. Pevzner
DOI:10.1134/s107036320701015x
日期:2007.1
Ethyl 2-methylfuran-3-carboxylate is smoothly chloroethylated at 0 degrees C in the 5 position of the ring. The resulting halide alkylates secondary amines but eliminates HCl with sodium diethyl phosphite under the Michaelis-Becker reaction conditions and with trimethyl phosphite under the Arbuzov reaction conditions. In the reaction with sodium diethyl phosphite, small amounts of 5-[1-(diethoxyphosphoryl)ethyl]furan-3-carboxylate and 5-ethylfuran-3-carboxylate are formed. In the Arbuzov reaction at a 1 : 1.22 furan: trimethyl phosphite molar ratio, methyl 2,4-dimethyl-1-methoxy-1-oxo-l lambda(5)-1,2-dihydrophospheto[3,2-b]furan-5-carboxylate was isolated.
Fittig; Dietzel, Justus Liebigs Annalen der Chemie, 1889, vol. 250, p. 210
作者:Fittig、Dietzel
DOI:——
日期:——
KRETCHMER R. A.; LAITAR R. A., J. ORG. CHEM., 1978, 43, NO 24, 4596-4598