公开(公告)号：CA1211469A

公开(公告)日：1986-09-16

申请号：CA427659

申请日：1983-05-06

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  KAWASHIMA SABURO ,  YAMAGUCHI AKIHIRO

IPC: C07B61/00 ,  B01J23/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/10 ,  C07C209/36 ,  C07C211/50 ,  C07C211/54 ,  C07C87/50

Abstract: Process for Preparation of 3,3'- or 3,4'Diaminodiphenylmethane Preparation of 3,3'- or 3,4'-diaminodiphenylmethane by catalytically reducing and dechlorinating, in the presence of a reduction catalyst, a dinitrobenzophenone compound having the formula wherein X is chlorine and attached to a position 4 or 6 on the benzene ring, and Y is hydrogen or chlorine with the proviso that when Y is hydrogen, the nitro group is attached to a position 3' or 4', and when Y is chlorine, Y is attached to a position 4' and the nitro group is attached to a position 3'.

公开(公告)号：AU5378786A

公开(公告)日：1986-09-04

申请号：AU5378786

申请日：1986-02-20

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  YOSHIKAWA YUKIHIRO ,  TAMAI SHOJI ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAGUCHI AKIHIRO

IPC: C07C205/38 ,  C07C79/35

Abstract: This invention is a method for preparing 3,3 min -dinitrodiphenylether by use of m-dinitrobenzene as a raw material. Namely, 3,3 min -dinitrodiphenylether is prepared by a condensation reaction of m-dinitrobenzene with m-nitrophenol in dipolar aprotic solvents in the presence of a base, or a self-condensation reaction of m-dinitrobenzene in the dipolar aprotic solvents in the presence of nitrite or in the presence of m-nitrophenol and the base.

公开(公告)号：AU553454B2

公开(公告)日：1986-07-17

申请号：AU1145283

申请日：1983-02-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAGUCHI AKIHIRO

IPC: C07C309/40 ,  C07C147/12

Abstract: 3,3'-diamino diphenylsulfones are prepared by catalytically reducing and dehalogenating, in the presence of a reduction catalyst and a dehydrohalogenation agent, a diphenylsulfone compound of the general formula in which X is a halogen atom and Y is hydrogen or a halogen atom.

公开(公告)号：FR2519631B1

公开(公告)日：1986-04-04

申请号：FR8300403

申请日：1983-01-12

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITU ,  KAWASHIMA SABURO ,  YAMAGUCHI AKIHIRO

IPC: C07C309/40 ,  C07C97/10

Abstract: 3,3'- or 3,4'-diamino benzophenone is prepared by catalytically reducing and dehalogenating, in the presence of a reduction catalyst and a dehydrohalogenation agent, a benzophenone compound or benzophenone compounds of the general formula in which X is a halogen atom at position 2 or 4 of the benzene ring and Y is hydrogen or a halogen atom and in which the nitro group is at position 3' or 4' of the benzene ring if Y is hydrogen, while Y is at position 4' and the nitro group is at position 3' of the benzene ring if Y is a halogen atom.

公开(公告)号：GB2127400B

公开(公告)日：1986-02-05

申请号：GB8313637

申请日：1983-05-17

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAGUCHI AKIHIRO ,  KAWASHIMA SABURO

IPC: C07B61/00 ,  B01J23/00 ,  C07C67/00 ,  C07C209/00 ,  C07C209/10 ,  C07C209/36 ,  C07C211/50 ,  C07C211/54 ,  C07C87/50

Abstract: Preparation of 3,3'- or 3,4'- diaminodiphenylmethane by catalytically reducing and dechlorinating, in the presence of a reduction catalyst, a dinitrobenzophenone compound having the formula wherein X is chlorine and attached to a position 4 or 6 or the benzene ring, and Y is hydrogen or chlorine with the proviso that when Y is hydrogen, the nitro group is attached to a position 3' or 4', and when Y is chlorine, Y is attached to a position 4' and the nitro group is attached to a position 3'.

公开(公告)号：GB2153347A

公开(公告)日：1985-08-21

申请号：GB8420155

申请日：1984-08-08

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  YOSHIKAWA YUKIHIRO ,  TANABE YOSHIMITSU ,  SUGIMOTO KENICHI ,  YAMAGUCHI AKIHIRO

IPC: C07C87/60

Abstract: 1,3-Bis(3-aminophenoxy)-5-bromobenzene and 1,3-bis(3-aminophenoxy)-5-chlorobenzene can be prepared by reacting a 1,3,5-trihalobenzene with 3-aminophenol, in the presence of a dehydrohalogenating agent such as an alkali metal hydroxide, carbonate, bicarbonate or alkoxide.

公开(公告)号：GB2148281A

公开(公告)日：1985-05-30

申请号：GB8422642

申请日：1984-09-07

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAZAKI MIDORI ,  YAMAGUCHI AKIHIRO

IPC: C07C87/50

公开(公告)号：GB2148279A

公开(公告)日：1985-05-30

申请号：GB8420848

申请日：1984-08-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  YOSHIKAWA YUKIHIRO ,  TANABE YOSHIMITSU ,  SUGIMOTO KENICHI ,  YAMAGUCHI AKIHIRO

IPC: C07C93/14

Abstract: 1,3-Bis(3-aminophenoxy)benzene which has use as a monomer for heat-resistant high molecular weight polymers is prepared by reducing, and thereby dehalogenating, a 1,3-bis(3-aminophenoxy)-5- halobenzene, a 1,3-bis(3-aminophenoxy)-2,4- dihalobenzene or a 1,5-bis(3-aminophenoxy)-2,4- dihalobenzene. The starting materials may be obtained by reacting a 1,3,5-trihalobenzene, a 1,2,3,4-tetrahalobenzene or a 1,2,3,4,5-tetrahalobenzene, respectively with 3-aminophenol, in the presence of a dehydrohalogenating agent.

公开(公告)号：DE3429903A1

公开(公告)日：1985-05-02

申请号：DE3429903

申请日：1984-08-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  YOSHIKAWA YUKIHIRO ,  TANABE YOSHIMITSU ,  SUGIMOTO KENICHI ,  YAMAGUCHI AKIHIRO

IPC: C08G73/00 ,  C07C20060101 ,  C07C67/00 ,  C07C213/00 ,  C07C213/06 ,  C07C217/82 ,  C07C217/90 ,  C08G73/10 ,  C07C93/14

Abstract: 1,3-Bis(3-aminophenoxy)-5-halogenobenzenes represented by the formula (I): (I) wherein X is a chlorine or bromine atom, are novel compounds and can be prepared by reacting trihalogenobenzenes represented by the formula (II): (II) wherein X1, X2 and X3 are each a chlorine or bromine atom, with 3-aminophenol in the presence of a dehydrohalogenating agent.

公开(公告)号：DE3433524A1

公开(公告)日：1985-03-28

申请号：DE3433524

申请日：1984-09-12

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEIZABURO ,  SUGIMOTO KENICHI ,  TANABE YOSHIMITSU ,  YAMAZAKI MIDORI ,  YAMAGUCHI AKIHIRO

IPC: C07C87/50 ,  C07C85/11