中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 2-{[5-(phenylsulfanyl)furan-2-yl]methyl}propanedinitrile | 1432613-99-4 | C14H10N2OS | 254.312 |
5-(苯磺酰基)呋喃-2-甲醛 | (5-phenylsulfonyl)-2-furfuraldehyde | 39689-09-3 | C11H8O4S | 236.248 |
—— | 5-phenylthio-2-furylmethylenepropanedinitrile | 56656-64-5 | C14H8N2OS | 252.296 |
The reaction of 5-X-2-furaldehydes (X = C6H5, COOCH3, COOC2H5, C6H5O, C6H5S, CH3S, 4-Cl-C6H4S, CH3SO2, C6H5SO2, 4-Cl-C6H4SO2) with ethyl cyanoacetate in dry ethanol catalyzed by sodium ethoxide yielded the corresponding ethyl 2-cyano-3-(5-X-2-furyl)acrylates. It was found that the reactions of these esters with cyanoacetophenone or ethyl acetoacetate do not afford the corresponding 4
Substituted 2-(5-R-2-furylmrthylene-3-oxobutanenitriles
Preparation and reactions of 1-(5-X-2-furyl)-2-methylsulfonyl-2-furoyl or -2-thienylethylenes with nucleophilic reagents are described. Stereochemistry of selected compounds was studied by NMR spectroscopy.