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    • 9. 发明授权
    • Preparation of unsaturated diesters by the catalytic oxidative
carbonylation of diolefins with an enol ether and an alcohol
    • 通过二烯烃与烯醇醚和醇的催化氧化羰基化制备不饱和二酯
    • US4166913A
    • 1979-09-04
    • US814012
    • 1977-07-08
    • Haven S. Kesling, Jr.Lee R. Zehner
    • Haven S. Kesling, Jr.Lee R. Zehner
    • B01J31/04C07C69/593C07C69/52
    • C07C69/593
    • A process for the preparation of an unsaturated diester having the formula ##STR1## wherein R is an alkyl group of from 1 to 8 carbon atoms or an aralkyl group containing 6 carbon atoms in the ring and from 1 to 4 carbon atoms in the alkyl substituent and R.sub.1 to R.sub.4 is hydrogen, a halogen, an alkyl group of from 1 to 4 carbon atoms or an aryl group containing 6 carbon atoms in the ring, by reacting carbon monoxide, oxygen, at least a stoichiometric amount of an enol ether or alkoxycycloalkene and at least an equal molar quantity of an alcohol based on the enol ether or alkoxycycloalkene, with a diolefin having the formula ##STR2## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 which may be the same or different is as hereinabove described, in the presence of a catalytic amount of a platinum group metal compound and a copper or iron oxidant salt compound.Alternatively, a ligand or coordination complex compound of the metal salt compound may be employed as a co-catalyst.
    • 一种制备具有下式的不饱和二酯的方法,其中R是1至8个碳原子的烷基或在该环中含有6个碳原子和在烷基取代基中具有1至4个碳原子的芳烷基 R 1至R 4为氢,卤素,具有1至4个碳原子的烷基或环中含有6个碳原子的芳基,通过使一氧化碳,氧,至少化学计量的烯醇醚或烷氧基环烯烃 和至少相等摩尔量的基于烯醇醚或烷氧基环烯烃的醇与具有下式的二烯烃:其中R1,R2,R3和R4可以相同或不同,如上所述,在存在下 的催化量的铂族金属化合物和铜或铁氧化剂盐化合物。