RU98114153A - METHOD FOR PRODUCING DIARYLMETHANE OR ITS DERIVATIVES - Google Patents

METHOD FOR PRODUCING DIARYLMETHANE OR ITS DERIVATIVES

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Publication number
RU98114153A
RU98114153A RU98114153/04A RU98114153A RU98114153A RU 98114153 A RU98114153 A RU 98114153A RU 98114153/04 A RU98114153/04 A RU 98114153/04A RU 98114153 A RU98114153 A RU 98114153A RU 98114153 A RU98114153 A RU 98114153A
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RU
Russia
Prior art keywords
alcohol
diarylmethane
derivatives
acid catalyst
paragraphs
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Application number
RU98114153/04A
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Russian (ru)
Other versions
RU2182896C2 (en
Inventor
Кавамата Таданори
Дохи Хидеюки
Иноуе Сатору
Хаяси Созо
Original Assignee
Ниппон Петрокемикалз Компани, Лимитед
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Priority claimed from JP9202130A external-priority patent/JPH1129506A/en
Application filed by Ниппон Петрокемикалз Компани, Лимитед filed Critical Ниппон Петрокемикалз Компани, Лимитед
Publication of RU98114153A publication Critical patent/RU98114153A/en
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Publication of RU2182896C2 publication Critical patent/RU2182896C2/en

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Claims (13)

1. Способ получения диарилметана или его производных, включающий взаимодействие диметоксиметана и/или бис(метоксиметил) эфира и ароматического соединения при температуре реакции в диапазоне 80 - 400°С в присутствии кислотного катализатора.1. A method of producing diarylmethane or its derivatives, comprising reacting dimethoxymethane and / or bis (methoxymethyl) ether and an aromatic compound at a reaction temperature in the range of 80 - 400 ° C in the presence of an acid catalyst. 2. Способ по п. 1,в котором указанный диарилметан и его производные представляются следующей общей формулой I:
Figure 00000001

где m - целое число 0 - 3, n равно 1 или 2, a R-независимо атом водорода, алкильная группа, имеющая 1 - 4 атомов углерода или гидроксильная группа.2. The method of claim 1, wherein said diarylmethane and its derivatives are represented by the following general formula I:
Figure 00000001

where m is an integer 0 to 3, n is 1 or 2, and R is independently a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a hydroxyl group. 3. Способ по п. 1, в котором указанным ароматическим соединением является бензол. 3. The method of claim 1, wherein said aromatic compound is benzene. 4. Способ по п. 1, в котором указанным ароматическим соединением является толуол. 4. The method of claim 1, wherein said aromatic compound is toluene. 5. Способ по любому из пп. 1-4, в котором указанным кислотным катализатором является твердый кислотный катализатор. 5. The method according to any one of paragraphs. 1-4, in which the specified acid catalyst is a solid acid catalyst. 6. Способ получения диарилметана или его производных, содержащий следующие стадии (1)- (4): (1) взаимодействие спирта с формальдегидом в присутствии кислотного катализатора для получения ацеталя; (2) взаимодействие ацеталя и ароматического соединения в присутствии кислотного катализатора для получения реакционной смеси, содержащей диарилметан или его производные и спирт; (3) отделение и восстановление диарилметана или его производных и спирта, соответственно, из указанной реакционной смеси, содержащей диарилметан или его производные и спирт; и (4) рециркулирование, по меньшей мере, части указанного восстановленного спирта на предшествующую стадию получения ацеталя (1). 6. A method for producing diarylmethane or its derivatives, comprising the following steps (1) to (4): (1) reacting an alcohol with formaldehyde in the presence of an acid catalyst to produce acetal; (2) the interaction of acetal and aromatic compounds in the presence of an acid catalyst to obtain a reaction mixture containing diarylmethane or its derivatives and alcohol; (3) separating and recovering diarylmethane or its derivatives and alcohol, respectively, from said reaction mixture containing diarylmethane or its derivatives and alcohol; and (4) recycling at least a portion of said reduced alcohol to the preceding acetal preparation step (1). 7. Способ по п. 6, в котором водный раствор формальдегида используется в качестве указанного формальдегида на стадии (1), и реакционная смесь на стадии (3) экстрагируется водой для разделения ее на масляную фазу и водосодержащую фазу, затем диарилметан или его производное восстанавливают из указанной масляной фазы, спирт восстанавливают из указанной водной фазы, и, по меньшей мере, часть указанного спирта рециркулируют на указанную стадию (1). 7. The method of claim 6, wherein the aqueous formaldehyde solution is used as said formaldehyde in step (1), and the reaction mixture in step (3) is extracted with water to separate it into an oil phase and an aqueous phase, then diarylmethane or its derivative is reduced from said oil phase, alcohol is reduced from said aqueous phase, and at least a portion of said alcohol is recycled to said step (1). 8. Способ по п. 6, в котором указанное отделение и восстановление на стадии (3) выполняют дистилляцией. 8. The method according to p. 6, in which the specified separation and recovery in stage (3) is performed by distillation. 9. Способ по любому из пп. 6-8, в котором указанный спирт на стадии (1) является метанолом, а указанным ацеталем - диметоксиметан. 9. The method according to any one of paragraphs. 6-8, in which the indicated alcohol in stage (1) is methanol, and the indicated acetal is dimethoxymethane. 10. Способ по любому из пп. 6-8, в котором указанным ароматическим соединением на стадии (2) является бензол и/или толуол. 10. The method according to any one of paragraphs. 6-8, wherein said aromatic compound in step (2) is benzene and / or toluene. 11. Способ по любому из пп. 6-8, в котором указанным ароматическим соединением стадии (2) является фенол и/или крезол. 11. The method according to any one of paragraphs. 6-8, in which the specified aromatic compound of stage (2) is phenol and / or cresol. 12. Способ по любому из пп. 6-8, в котором указанным кислотным катализатором является твердый кислотный катализатор. 12. The method according to any one of paragraphs. 6-8, wherein said acid catalyst is a solid acid catalyst. 13. Способ по п. 6, в котором указанную реакцию спирта с формальдегидом на стадии (1) выполняют реактивной дистилляцией. 13. The method of claim 6, wherein said reaction of the alcohol with formaldehyde in step (1) is performed by reactive distillation.
RU98114153/04A 1997-07-11 1998-07-10 Diarylmethane or its derivatives production process RU2182896C2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP9202130A JPH1129506A (en) 1997-07-11 1997-07-11 Production of diarylmethane or its derivative
JP9-202130 1997-07-11
JP20213197 1997-07-11
JP9-202131 1997-07-11

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RU98114153A true RU98114153A (en) 2000-03-27
RU2182896C2 RU2182896C2 (en) 2002-05-27

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US (1) US6207866B1 (en)
EP (1) EP0890562B1 (en)
KR (1) KR19990013731A (en)
CN (1) CN1166600C (en)
DE (1) DE69804167T2 (en)
RU (1) RU2182896C2 (en)
TW (1) TW552255B (en)

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