Patent classifications
C07C51/367
PRODUCTION OF MALIC ACID USING TUBULAR AND STIRRED TANK REACTORS
A process for production of malic acid includes obtaining a feed that includes one or more of crude maleic anhydride, pure maleic anhydride, crude maleic acid, crude fumaric acid, pure maleic acid, pure fumaric acid, vent gas scrubber solutions from production of maleic anhydride, and vent gas scrubber solutions from production of phthalic anhydride. The feed is passed in a tubular reactor assembly to obtain a first product stream, which includes unreacted feed and malic acid. The feed is made to undergo hydration reaction in the tubular reactor assembly for a first predetermined time period, and further hydration of the first product stream is caused in a stirred tank reactor assembly for a second predetermined time period to obtain a final product stream, which includes the malic acid.
PRODUCTION OF MALIC ACID USING TUBULAR AND STIRRED TANK REACTORS
A process for production of malic acid includes obtaining a feed that includes one or more of crude maleic anhydride, pure maleic anhydride, crude maleic acid, crude fumaric acid, pure maleic acid, pure fumaric acid, vent gas scrubber solutions from production of maleic anhydride, and vent gas scrubber solutions from production of phthalic anhydride. The feed is passed in a tubular reactor assembly to obtain a first product stream, which includes unreacted feed and malic acid. The feed is made to undergo hydration reaction in the tubular reactor assembly for a first predetermined time period, and further hydration of the first product stream is caused in a stirred tank reactor assembly for a second predetermined time period to obtain a final product stream, which includes the malic acid.
Catalyst for hydrogenation of carbonyl compound and alcohol production method
Provided is a catalyst including a metal component including a first component that is rhenium and one or more second components selected from the group consisting of silicon, gallium, germanium, and indium and a carrier on which the metal component is supported, the carrier including an oxide of a metal belonging to Group 4 of the periodic table. Also provided is an alcohol production method in which a carbonyl compound is treated using the above catalyst. It is possible to produce an alcohol by a hydrogenation reaction of a carbonyl compound with high selectivity and high efficiency while reducing side reactions.
Catalyst for hydrogenation of carbonyl compound and alcohol production method
Provided is a catalyst including a metal component including a first component that is rhenium and one or more second components selected from the group consisting of silicon, gallium, germanium, and indium and a carrier on which the metal component is supported, the carrier including an oxide of a metal belonging to Group 4 of the periodic table. Also provided is an alcohol production method in which a carbonyl compound is treated using the above catalyst. It is possible to produce an alcohol by a hydrogenation reaction of a carbonyl compound with high selectivity and high efficiency while reducing side reactions.
DERIVATIVES OF 10-METHYLENE LIPIDS, PROCESS FOR PREPARING SUCH DERIVATIVES AND USE THEREOF
The present invention relates to derivatives of 10-methylene lipids, their preparation and their use.
DERIVATIVES OF 10-METHYLENE LIPIDS, PROCESS FOR PREPARING SUCH DERIVATIVES AND USE THEREOF
The present invention relates to derivatives of 10-methylene lipids, their preparation and their use.
Performic acid on-site generator and formulator
Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.
Performic acid on-site generator and formulator
Methods of generating performic acid by contacting aqueous oxidizing agent and aqueous formic acid source in liquid phase are disclosed. A system and apparatus for the in situ production of the performic acid chemistries is further disclosed. In particular, a continuous flow reactor is provided to generate performic acid at variable rates. Methods of employing the oxidizing biocide for various disinfection applications are also disclosed.
TOTAL SYNTHESES OF SPECIALIZED PRO-RESOLVING MEDIATORS (SPMS), STRUCTURAL ISOMERS AND STRUCTURAL ANALOGS
A method for the synthesis of specialized pro-resolving mediators, structural isomers thereof and analogs thereof is disclosed herein. The method comprises reacting a compound of the formula (I):
##STR00001## wherein R.sub.1 is alkyl.sub.(C≤12), cycloalkyl.sub.(C≤12), alkenyl.sub.(C≤12), alkylidene.sub.(C≤12), alkynyl.sub.(C≤12), aryl, aralkyl, heteroaryl or heteroaralkyl; and X.sub.1, X.sub.2 and X.sub.3 are each independently hydroxy or OP, wherein P is a hydroxy protecting or hydroxy activating group; with a reducing agent under conditions sufficient to produce a compound of the formula (II):
##STR00002## wherein: R.sub.1, X.sub.1, X.sub.2 and X.sub.3 are as defined above.
Novel protectins, more specifically novel structural isomers and analogs of PD1 and PDX are also disclosed.
TOTAL SYNTHESES OF SPECIALIZED PRO-RESOLVING MEDIATORS (SPMS), STRUCTURAL ISOMERS AND STRUCTURAL ANALOGS
A method for the synthesis of specialized pro-resolving mediators, structural isomers thereof and analogs thereof is disclosed herein. The method comprises reacting a compound of the formula (I):
##STR00001## wherein R.sub.1 is alkyl.sub.(C≤12), cycloalkyl.sub.(C≤12), alkenyl.sub.(C≤12), alkylidene.sub.(C≤12), alkynyl.sub.(C≤12), aryl, aralkyl, heteroaryl or heteroaralkyl; and X.sub.1, X.sub.2 and X.sub.3 are each independently hydroxy or OP, wherein P is a hydroxy protecting or hydroxy activating group; with a reducing agent under conditions sufficient to produce a compound of the formula (II):
##STR00002## wherein: R.sub.1, X.sub.1, X.sub.2 and X.sub.3 are as defined above.
Novel protectins, more specifically novel structural isomers and analogs of PD1 and PDX are also disclosed.