Apple ester β was synthesized by reaction of ethyl acetyl acetate and 1,2 propanediol with H 8[Si(W 2O 7) 6]·xH 2O as catalyst.The optimum condition were found as follows:the ratio of ethyl acetyl acetate to 2 p...Apple ester β was synthesized by reaction of ethyl acetyl acetate and 1,2 propanediol with H 8[Si(W 2O 7) 6]·xH 2O as catalyst.The optimum condition were found as follows:the ratio of ethyl acetyl acetate to 2 propanediol to H 8[Si(W 2O 7) 6]·xH 2O was 1mol to 1.2mol to 0.015mol.The reaction time is about 2.0h.展开更多
文摘Apple ester β was synthesized by reaction of ethyl acetyl acetate and 1,2 propanediol with H 8[Si(W 2O 7) 6]·xH 2O as catalyst.The optimum condition were found as follows:the ratio of ethyl acetyl acetate to 2 propanediol to H 8[Si(W 2O 7) 6]·xH 2O was 1mol to 1.2mol to 0.015mol.The reaction time is about 2.0h.
