公开(公告)号：JPH0717925A

公开(公告)日：1995-01-20

申请号：JP16689593

申请日：1993-07-06

Applicant: MITSUI TOATSU CHEMICALS

Inventor： FUKUMURA TAKANORI ,  WADA MASARU ,  NAGATA TERUYUKI

IPC: B01J23/44 ,  B01J25/00 ,  C07B61/00 ,  C07C213/08 ,  C07C217/92

Abstract: PURPOSE:To obtain a novel N-cyclohexyl-N-phenyl-alkoxyaniline extremely useful as an intermediate for synthetic dyes and rubber agents, especially, an intermediate for fluoran compounds useful as a coloring compound for pressure- sensitive or heat-sensitive recording. CONSTITUTION:A N-cyclohexyl-N-phenyl-alkoxyaniline expressed by the formula I (R is lower alkyl; R' is H or lower alkyl), e.g. N-cyclohexyl-N-phenyl-4- methoxyaniline. The compound of formula I is obtained by subjecting phenol to heat reaction with N-cyclohexyl-alkoxyaniline and cyclohexanone in the presence of a hydrogen transfer catalyst.

公开(公告)号：JPH0579040B2

公开(公告)日：1993-11-01

申请号：JP2025286

申请日：1986-02-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI TERUHIRO ,  YAMAGUCHI KEISABURO ,  TANABE YOSHIMITSU ,  ASANO MAKOTO ,  WADA MASARU

IPC: B41M5/155 ,  C08G61/10

公开(公告)号：JPH0549656B2

公开(公告)日：1993-07-26

申请号：JP586380

申请日：1980-01-23

Applicant: MITSUI TOATSU CHEMICALS

Inventor： NAGATA TERUYUKI ,  TAMAOKI AKIHIRO ,  WADA MASARU

IPC: C07C51/60 ,  B01J31/00 ,  B01J31/02 ,  C07B61/00 ,  C07C51/00 ,  C07C67/00

公开(公告)号：JPH0528216B2

公开(公告)日：1993-04-23

申请号：JP13889484

申请日：1984-07-06

Applicant: MITSUI TOATSU CHEMICALS

Inventor： NAGATA TERUYUKI ,  TAMAOKI AKIHIRO ,  KAJIMOTO NOBUYUKI ,  WADA MASARU

IPC: C07C213/02 ,  C07C67/00 ,  C07C209/00 ,  C07C209/18 ,  C07C209/60 ,  C07C211/54 ,  C07C211/55 ,  C07C213/00 ,  C07C217/84 ,  C07C217/92

公开(公告)号：JPH04316570A

公开(公告)日：1992-11-06

申请号：JP8371391

申请日：1991-04-16

Applicant: MITSUI TOATSU CHEMICALS

Inventor： KAMASHITA TOMOKO ,  TAKAOKA MASAZUMI ,  WADA MASARU ,  NAGATA TERUYUKI

IPC: C07B61/00 ,  C07D307/66

Abstract: PURPOSE:To obtain the subject compound useful as a raw material for sweetener, etc., in high yield and purity by reacting an N-protected aspartic acid in an inert organic solvent in the presence of a catalyst while blowing phosgene and an inert gas into the solvent. CONSTITUTION:The objective N-protected aspartic acid anhydride is produced by reacting an N-protected aspartic acid in an inert organic solvent in the presence of a catalyst while blowing phosgene and an inert gas into the solvent. The N-protecting group is formyl, acetyl, trifluoroacetyl, etc., and the inert gas is dry air, nitrogen, argon, etc.

公开(公告)号：JPH03133949A

公开(公告)日：1991-06-07

申请号：JP26905589

申请日：1989-10-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： NAGATA TERUYUKI ,  WADA MASARU ,  MIZUTA HIDEKI

IPC: C07C263/10 ,  C07C265/14

Abstract: PURPOSE:To obtain 1,8-menthane diisocyanate having extremely low chlorinated impurities in high volume-efficiency by using an ester as a reaction solvent in the reaction of 1,8-menthanediamine or its hydrochloride with phosgene. CONSTITUTION:1,8-Menthane diisocyanate useful in the field of chemical industry, resin industry and paint industry as a raw material for polyurethane material, polyurea material or polyisocyanurate material is produced by reacting 1,8-menthanediamine or its hydrochloride with phosgene. The phosgenation reaction is carried out preferably at 100-170 deg.C, especially 120-160 deg.C using an ester, especially aliphatic ester or aromatic carboxylic acid ester as a reaction solvent. The objective compound can be produced on an industrial scale at a low cost while suppressing the formation of chlorinated impurities, reducing the load of the post-treatment processes such as distillation purification process and decreasing the loss caused by the thermal degradation in the post-treatment processes.

公开(公告)号：JPH01160932A

公开(公告)日：1989-06-23

申请号：JP31870487

申请日：1987-12-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： MIURA TORU ,  WADA MASARU ,  FURUYA MASAYUKI ,  NAGATA TERUYUKI

IPC: C07C37/20 ,  B01J27/10 ,  C07B61/00 ,  C07C27/00 ,  C07C39/17 ,  C07C67/00

Abstract: NEW MATERIAL:3,3-Bis(4-hydroxyphenyl)-cyclohexanol. USE:An intermediate for 3,4'-dihydroxybiphenyl, etc. PREPARATION:3-Hydroxycyclohexanone is normally condensed in the presence of a catalyst, such as hyrochloric acid, hydrogen chloride gas, sulfuric acid, phosphoric acid, toluenesulfonic acid, BF3, ZnCl2, AlCl3, SnCl4, or cation exchange resin having mobile acidic groups, etc., at 30-100 deg.C, preferably 40-80 deg.C temperature to afford the aimed 3,3-bis(4-hydroxyphenyl)-cyclohexanol. Furthermore, the reaction rate of the above-mentioned reaction can be increased by adding a cocatalyst, such as alkyl mercaptan. The raw material 3- hydroxycyclohexanone is obtained by reduction of resorcin, addtion reaction of water to cyclohexen-3-one or oxidation of 1,3-cyclohexanediol, etc.

公开(公告)号：JPS6353092A

公开(公告)日：1988-03-07

申请号：JP30533286

申请日：1986-12-23

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI KEISABURO ,  TANABE YOSHIMITSU ,  ASANO MAKOTO ,  WADA MASARU ,  YAMAGUCHI TERUHIRO

IPC: B41M5/155 ,  C08G61/02 ,  C08G61/10 ,  C09D11/00

Abstract: PURPOSE:To obtain a sheet free of after-yellowing and capable of giving a developed color image stable to light, plasticizers or the like, by incorporating a metallized product of a co-condensation resin comprising salicylic acid, an alpha,alpha'-diakoxy-p-cylene and a specified 1,3,5-trialkylbenzene. CONSTITUTION:An alpha,alpha'-dialkoxy-p-xylene is used in an amount of 0.3-0.8mol per 1mol of a combination of salicylic acid and a 1,3,5-trialkylbenzene. The 1,3,5-trialkylbenzene for forming a co-condensation resin is a compound of general formula I, wherein each of R1, R2 and R3, which may be the same or different, is an up to 4C alkyl. The trialkylbenzene is used in an amount of 0.5-10mol per 1mol of salicylic acid.

公开(公告)号：JPS62187078A

公开(公告)日：1987-08-15

申请号：JP2886786

申请日：1986-02-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YAMAGUCHI TERUHIRO ,  YAMAGUCHI KEISABURO ,  TANABE YOSHIMITSU ,  ASANO MAKOTO ,  WADA MASARU

IPC: B41J31/00 ,  B41M5/155

Abstract: PURPOSE:To eliminate the fading of a developed color image, by forming a color forming sheet for pressure-sensitive copy paper by having a metallized substance of a copolycondensation resin consisting of p-substituted phenol and alpha,alpha'-dialkoxy-p-xylene contained. CONSTITUTION:A predetermined amount of p-substituted phenol, alpha,alpha'-dialkoxy-p- xylene and a catalyst are simultaneously added and the resulting mixture is heated to predetermined temp. as it is to be reacted to prepare a copolycondensation resin. In this case, the pref. used amount of alpha,alpha'-dialkoxy-p- xylene is a 0.3-0.8 mol. ratio with respect to p-substituted phenol. Subsequently, the copolycondensation resin is mixed with a multivalent metal salt of an org. acid such as formic acid, acetic acid or propionic acid and melted under heating to obtain a metallized substance. Aqueous paint using an aqueous suspension of the metallized substance being a coupler is applied to a support such as paper to prepare a color forming sheet for pressure-sensitive copy paper.

公开(公告)号：JPS61229866A

公开(公告)日：1986-10-14

申请号：JP6904485

申请日：1985-04-03

Applicant: MITSUI TOATSU CHEMICALS

Inventor： NAGATA TERUYUKI ,  KAJIMOTO NOBUYUKI ,  WADA MASARU ,  MIZUTA HIDEKI

IPC: C07D233/34

Abstract: PURPOSE:To obtain in high yield 1,3-dimethyl-2-imidazolidinone useful as an improved solvent for high polymer compounds, by reacting N,N'-dimethyl ethylenediamine with urea by the use of a polar solvent at a specific tempera ture. CONSTITUTION:N,N'-Dimethylethylenediamine is reacted with urea in a polar solvent such as N,N-dimethylformamide, N,N-dimethylacetamide, tetramethyl urea, etc. (especially preferably 1,3-dimethyl-2-imidazolidinone, reaction product) at >=180 deg.C, especially 200-260 deg.C, to give 1,3-dimethyl-2-imidazolidionone. Espe cially in the case that the reaction product is used as a solvent, separation of the reaction product from the solvent is not required during distillation, so the process is extremely simplified.