中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6-甲基香豆素 | 6-methylcoumarin | 92-48-8 | C10H8O2 | 160.172 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | 6-formyl-3-phenylcoumarin | 1387531-03-4 | C16H10O3 | 250.254 |
—— | 6-bromomethyl-3-phenylcoumarin | 1253967-62-2 | C16H11BrO2 | 315.166 |
—— | 3-(2-hydroxyphenyl)-6-methylcoumarin | 1338596-79-4 | C16H12O3 | 252.269 |
—— | 3-(4-bromophenyl)-6-methylcoumarin | 1247212-13-0 | C16H11BrO2 | 315.166 |
—— | cis-6-(4-methoxystyryl)-3-phenylcoumarin | 1387531-20-5 | C24H18O3 | 354.405 |
—— | trans-6-(4-methoxystyryl)-3-phenylcoumarin | 1387531-22-7 | C24H18O3 | 354.405 |
A highly efficient synthesis of 3-arylcoumarins by Pd-catalysed carbonylative cyclisation of salicylaldehydes with benzyl chlorides using
A transition-metal-free regioselective α-arylation of coumarins and 2-pyridones has been accomplished by the reaction of phenylhydrazines with coumarins or 2-pyridones.
The room-temperature oxidative C–H/C–H cross-couplings between simple arenes and alkenes, coumarins or quinones have been reported by using a highly electrophilic palladium species [Pd(TFA)2] as the catalyst and cheap (NH4)2S2O8 as the oxidant under air.
An efficient protocol for oxidative C-3 arylation of coumarins with arylhydrazine has been developed using potassium permanganate as an oxidant. The arylated coumarins with different electronic properties were obtained in moderate to good yields. The developed protocol for direct C-3 arylation of coumarins could be extended to quinolinones.