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    • 10. 发明授权
    • Cracking of mixtures containing hydroxyesters
    • 含羟基酯的混合物开裂
    • US4012424A
    • 1977-03-15
    • US602738
    • 1975-08-07
    • Martin B. SherwinJimmy Peress
    • Martin B. SherwinJimmy Peress
    • C07D301/02
    • C07D301/02
    • This invention concerns the preparation of oxirane compounds by the vapor phase cracking of hydroxyesters in the presence of a basic material. Specifically, it has been discovered that the aforesaid reaction may be carried out without the prior separation of vicinal glycols, vicinal diesters or both. This is particularly advantageous because vicinal hydroxyesters are frequently formed in combination with these latter materials and the separation thereof is most difficult. Preferably, mixtures of the hydroxyesters, glycols and diesters are first hydrolyzed or esterified in order to increase the hydroxyester content.
    • 本发明涉及在碱性物质存在下通过羟基酯的气相裂解来制备环氧乙烷化合物。 具体地说,已经发现上述反应可以在没有先前分离连二醇,连位二酯或两者的情况下进行。 这是特别有利的,因为邻位羟基酯经常与这些后者材料组合形成,并且其分离是最困难的。 优选地,羟基酯,二醇和二酯的混合物首先水解或酯化以增加羟基酯含量。