Method of producing unsaturated carbonyl compounds
AssigneeIdemitsu Kosan Co., Ltd.
InventorsNoboru Kawata, Kosaku Honna, Hirozo Sugahara
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Abstract
Unsaturated carbonyl compounds such as methyl methacrylate are produced by reacting an acetylene, CO and water or an alcohol in the presence of a catalyst comprising a Pd(II) compound and a compound R"X where R" is H, lower alkyl or aryl and X is halogen, and in the presence of an oxygen-containing compound other than water or an alcohol.
Claims10
A method of producing an unsaturated carbonyl compound of the formula ##STR1## wherein R' is hydrogen or lower alkyl, which comprises reacting methyl acetylene, carbon monoxide and a compound of the formula R'OH wherein R' is hydrogen or lower alkyl in the presence of a catalyst consisting essentially of a palladium (II) compound and a compound of the formula R"X wherein R" is hydrogen, lower alkyl or aryl and X is iodine or bromine, and in the presence of an ester of a saturated aliphatic acid or a saturated aliphatic ketone, the amount of said R'OH compound being substantially equal to the amount of methyl acetylene and the amount of said ester or ketone being from about 2 to about 10 times the amount of said R'OH compound.
Dependencies are inferred from the claim text.