公开(公告)号：JP2004010520A

公开(公告)日：2004-01-15

申请号：JP2002164278

申请日：2002-06-05

Applicant: UBE INDUSTRIES

Inventor： ATAKA KIKUO ,  KAKEYA NOBORU ,  FUJIMURA HITOSHI ,  YAMAMOTO YOSHIFUMI ,  TANAKA MITSUHIRO ,  FUKUDA YUKIMASA

IPC: C07C51/245 ,  C07B61/00 ,  C07C55/14 ,  C07C55/21

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an aliphatic dicarboxylic acid by oxidizing corresponding cycloalkanone compounds with molecular oxygen in a liquid phase, by which the aliphatic dicarboxylic acid is produced in a high yield in safer handling. SOLUTION: The cycloalkanone compounds are oxidized with molecular oxygen in the presence of a cerium compound and a cobalt compound as catalysts in a liquid phase. Preferably the cycloalkanone compounds are cyclohexanone and cyclododecanone and in the catalytic system, at least one compound of each catalytic component selected from the cerium compound and the cobalt compound is a nitrate. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2003119176A

公开(公告)日：2003-04-23

申请号：JP2001312216

申请日：2001-10-10

Applicant: UBE INDUSTRIES

Inventor： TANAKA MITSUHIRO ,  FUJIMURA HITOSHI

IPC: C07C407/00 ,  C07B61/00 ,  C07C409/14

Abstract: PROBLEM TO BE SOLVED: To provide a method for safely producing a corresponding a dihydroperoxide from cycrododecanone and the like (e.g. 1,1- dihydroperoxcyclododecane) at a high yield, considering yield and safety problems of conventional technologies. SOLUTION: This method for producing 1,1-dihydroperoxycyclododecane represented by the formula is characterized by reacting cyclododecanone with hydrogen peroxide in 2,2,2-trifluoroethanol in the presence of an acid catalyst.

公开(公告)号：JP2000119285A

公开(公告)日：2000-04-25

申请号：JP28365698

申请日：1998-10-06

Applicant: UBE INDUSTRIES

Inventor： FUJIMURA HITOSHI ,  TANAKA MITSUHIRO ,  ATAKA KIKUO

IPC: C07D261/00 ,  B01J31/18 ,  C07B53/00 ,  C07B61/00 ,  C07F15/00

Abstract: PROBLEM TO BE SOLVED: To obtain a new optically active aryloxyacyl platinum (II) complex having an optical active nitrogen-phosphorus hetero-bidentate ligand, acting as a catalyst or a catalyst precursor in various synthetic reactions to give a practical reaction yield and giving an excellent asymmetric yield in an asymmetric synthesizing reaction. SOLUTION: This compound is expressed by formula I (R1 to R4 are each H, a halogen, an alkyl or the like; L is an optical active nitrogen-phosphorus hetero-bidentate ligand), for example, the compound of formula II. The compound of formula I is obtained, for example, by reaction potassium tetrachloro platinate and salicyl aldehyde having corresponding substituent in dimethylsulfoxide, and then reacting with the optical active nitrogen-phosphorus hetero-bidentate ligand corresponding to L. The objective compound is capable of obtaining a hydrosililated compound in a practical yield without activation in carrying out hydrosililating reaction of an olefin.