Process for producing methylisobutylketone
AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsNobuo Isogai, Takashi Okawa, Natsuko Wakui
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Abstract
Methylisobutylketone is produced from acetone in a high yield with a good selectivity through one-step reaction by contacting acetone together with at least one of water and hydrogen with an element of Group VIII of the periodic table, a halogen and a phosphorus compound as a catalyst under a super atmospheric pressure in a carbon monoxide atmosphere.
Claims15
A process for producing methylisobutylketone, which comprises contacting acetone with at least one member selected from the group consisting of water and hydrogen under superatomspheric pressure and under a carbon monoxide atmosphere using:
- (a) an element of Group VIII of the periodic table, said element being present as a simple substance, an oxide, a hydroxide, a salt, an organic metal complex or a carbonyl;
- and (b) a halogen selected from the group consisting of iodine and bromine, said halogen being present as elemental halogen, a halogenic acid or a metal salt of a halogenic acid;
- and (c) a phosphorus compound, said phosphorus compound being present as an alkylphosphine, an alkylphosphine oxide, an alkyl phosphonium salt, or an alkylphosphine sulfide as catalyst at a temperature effective for forming methylisobutylketone, the catalyst's components being present in amounts effective for forming methylisobutylketone.
Dependencies are inferred from the claim text.