SYNTHESIS OF DIACIDS

Japanese Patent JP2017057204

A

PROBLEM TO BE SOLVED: To provide processes for preparing diacids from renewable feedstock.SOLUTION: The invention relates to a process for preparing a dicarboxylic acid comprising the steps of: (a) heating a lactone in the presence of a first catalyst system to produce an alkenoic acid; and (b) contacting the alkenoic acid with carbon monoxide, water and a second catalyst system to produce a reaction composition comprising the second catalyst system and the dicarboxylic acid.SELECTED DRAWING: None

WO/1998/045038	PROCESS AND CATALYST FOR CARBONYLATING OLEFINS
WO/1994/007834	A RECYCLING PROCESS FOR THE PRODUCTION OF ADIPIC ACID AND OTHER ALIPHATIC DIBASIC ACIDS
WO/1995/021904	USE OF CARBOXYLIC ACID ESTERS AS FUEL OR LUBRICANT ADDITIVES AND PROCESS FOR PREPARING THE SAME

WONG PUI KWAN
LI CHUAN-ZHAO
LUDGER STUBBS
MARTIN VAN MEURS
DANIEL GAIT ANAK KUMBANG
SHARON CHUN YAN LIM
DRENT EIT

JP2016205882A

March 23, 2017

October 20, 2016

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AGENCY FOR SCIENCE TECH & RES

C07C51/14; B01J21/12; B01J29/40; B01J31/24; C07C51/09; C07C55/14; C07C57/03; C07C59/185; C08B15/00; C08G69/28

JPH08500608A	1996-01-23
JP2006528227A	2006-12-14
JPH11513034A	1999-11-09
JP2000508336A	2000-07-04
JP2001503425A	2001-03-13
JPS61161237A	1986-07-21
JPH026427A	1990-01-10

WO2006125801A1	2006-11-30
US5312979A	1994-05-17

ORGANIC LETTERS, vol. Vol. 2, No. 2, JPN6017022256, 2000, pages pp. 203-206
LANGMUIR, vol. Vol. 26, No. 21, JPN6017022257, 2010, pages pp. 16291-16298

Takuji Yamada
Aoyama Aoi
Michiko Matsutani
Yasushi Ochiai

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