Preparation process of cinnamate ester
AssigneeMitsui Toatsu Chemicals, Inc.
InventorsUsaji Takaki, Shinobu Aoki, Yoshihiro Yamamoto, Isao Hara
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Abstract
The invention relates to a process for preparing a cinnamate ester comprising forming a reaction mixture of a styrene compound, an alcohol and a catalyst in a reactor; blowing a feed gas mixture of carbon monoxide, oxygen and an inert gas into the reaction mixture through at least one feed port; collecting a discharge gas flowing from the reactor and passing the gas through a condenser to form a condensate; recirculating the condensate into the reactor; blowing into the reaction mixture through at least one feed port other than the feed port(s) for the feed gas mixture, a gas selected from the groups consisting of the discharge gas and an inert gas; and isolating the cinnamate ester from the mixture.
Claims16
A process for preparing a cinnamate ester comprising
- (1) forming a reaction mixture of a styrene compound, an alcohol and a catalyst in a reactor;
- (2) blowing a feed gas mixture of carbon monoxide, oxygen and an inert gas into the reaction mixture through at least one feed port;
- (3) collecting a discharge gas flowing from the reactor and passing the gas through a condenser to form a condensate;
- (4) recirculating the condensate into the reactor;
- (5) blowing into the reaction mixture through at least one feed port other than the feed port(s) used in step (2), a gas selected from the group consisting of the discharge gas and an inert gas;
- and
- (6) isolating the cinnamate ester from the mixture.
Dependencies are inferred from the claim text.