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    • 27. 发明授权
    • Preparation of unsaturated diesters by catalytic oxidative carbonylation
of diolefins
    • 通过二烯烃的催化氧化羰基化制备不饱和二酯
    • US4171450A
    • 1979-10-16
    • US808939
    • 1977-06-22
    • Haven S. Kesling, Jr.Lee R. Zehner
    • Haven S. Kesling, Jr.Lee R. Zehner
    • B01J27/00C07C69/52
    • C07C69/52
    • 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 and oxygen with a diolefin having the formula ##STR2## wherein R.sub.1 to 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, a copper for iron oxidant salt compound and a stoichiometric amount of a dehydrating agent.Alternatively, a ligand or coordination complex compound of the metal salt compound, and catalytic quantities of an alcohol may be employed.
    • 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,通过使一氧化碳和氧与具有下式的二烯烃反应:其中R1 在与催化量的铂族金属化合物,铁氧化剂盐化合物的铜和化学计量的脱水剂的存在下,可以相同或不同的R 4如上所述。