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ES8206452A1 - Procedimiento para la obtencion de uretanos n,o-disustitui- dos - Google Patents

Procedimiento para la obtencion de uretanos n,o-disustitui- dos

Info

Publication number
ES8206452A1
ES8206452A1 ES505616A ES505616A ES8206452A1 ES 8206452 A1 ES8206452 A1 ES 8206452A1 ES 505616 A ES505616 A ES 505616A ES 505616 A ES505616 A ES 505616A ES 8206452 A1 ES8206452 A1 ES 8206452A1
Authority
ES
Spain
Prior art keywords
preparation
disubstituted urethanes
urethanes
disubstituted
catalysts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES505616A
Other languages
English (en)
Other versions
ES505616A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES505616A0 publication Critical patent/ES505616A0/es
Publication of ES8206452A1 publication Critical patent/ES8206452A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C269/00—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C269/04—Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups from amines with formation of carbamate groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE URETANOS N,O-DISUSTITUIDOS. CONSISTE EN LA REACCION DE AMINAS PRIMARIAS, DE FORMULA R1(NH2)N, EN LA QUE R, ES UN RADICAL HIDROCARBURO AROMATICO Y N VALE 1 O 2, CON CARBONATOS DIALQUILICOS, DE FORMULA (I), EN LA QUE R2 Y R3 SON RADICALES ALQUILO DE 1 A 4 ATOMOS DE CARBONO. LA REACCION SE LLEVA A CABO EN PRESENCIA DE CATALIZADORES, TALES COMO COMPUESTOS ORGANICOS O INORGANICOS DE PLOMO, TITANIO, CINC O CIRCONIO, A TEMPERATURAS ENTRE 80 Y 250 C. ESTOS COMPUESTOS TIENEN APLICACIONES PARA LA OBTENCION DE ISOCIANATOS.
ES505616A 1980-09-19 1981-09-18 Procedimiento para la obtencion de uretanos n,o-disustitui- dos Expired ES8206452A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803035354 DE3035354A1 (de) 1980-09-19 1980-09-19 Verfahren zur herstellung von n,o-disubstituierten urethanen und ihre verwendung als ausgangsmaterial zur herstellung von organischen isocyanaten

Publications (2)

Publication Number Publication Date
ES505616A0 ES505616A0 (es) 1982-08-16
ES8206452A1 true ES8206452A1 (es) 1982-08-16

Family

ID=6112355

Family Applications (1)

Application Number Title Priority Date Filing Date
ES505616A Expired ES8206452A1 (es) 1980-09-19 1981-09-18 Procedimiento para la obtencion de uretanos n,o-disustitui- dos

Country Status (8)

Country Link
EP (1) EP0048371B1 (es)
JP (1) JPS5782361A (es)
AU (1) AU7523581A (es)
BR (1) BR8105975A (es)
CA (1) CA1166649A (es)
DE (2) DE3035354A1 (es)
ES (1) ES8206452A1 (es)
ZA (1) ZA816484B (es)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3327824A1 (de) * 1983-08-02 1985-02-14 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von n,o-substituierten mono- und/oder polyurethanen
US4550188A (en) * 1984-06-27 1985-10-29 The Dow Chemical Company Preparation of carbamates
GB8714873D0 (en) * 1987-06-25 1987-07-29 Bp Chemicals Additives Additives
US5138015A (en) * 1990-03-19 1992-08-11 Daicel Chemical Industries, Ltd. Process for producing polyurethane
JP2645603B2 (ja) * 1990-03-27 1997-08-25 宇部興産株式会社 カルバメートの製造法
DE4113156A1 (de) * 1991-04-23 1993-01-14 Bayer Ag Verfahren zur herstellung von poly(o-alkylurethanen) der diphenylmethanreihe
DE4121211A1 (de) * 1991-06-27 1993-01-14 Bayer Ag Verfahren zur herstellung von bis(ethoxycarbonylamino)toluolen und deren verwendung zur herstellung von diisocyanatotoluolen
IT1282023B1 (it) * 1995-07-06 1998-03-06 Mini Ricerca Scient Tecnolog Procedimento per la produzione di uretani aromatici
DE19541384A1 (de) * 1995-11-07 1997-05-15 Basf Ag Verfahren zur Herstellung von organischen Diurethanen und/oder Polyurethanen und ihre Verwendung zur Herstellung von Di- und/oder Polyisocyanaten
EP1093452A1 (en) * 1998-03-17 2001-04-25 Huntsman International Llc Method for the preparation of organic carbamates
JP4134455B2 (ja) * 1999-09-14 2008-08-20 日本ゼオン株式会社 カルバメート化合物の製造方法
SG115512A1 (en) 2001-12-28 2005-10-28 Mitsui Takeda Chemicals Inc Method for producing carbamates and method for producing isocyanates
JP4107845B2 (ja) * 2002-01-24 2008-06-25 三井化学ポリウレタン株式会社 アルキルカルバメートの製造方法
JP4778844B2 (ja) * 2006-06-20 2011-09-21 三井化学株式会社 珪素含有イソシアネート化合物の製造方法
EP2036884A1 (en) 2007-09-14 2009-03-18 Repsol Ypf S.A. Process for producing fluorinated isocyanates and carbamates
US8481777B2 (en) 2008-03-18 2013-07-09 Basf Se Metal carbamates formed from tolylenediamines
PL2265571T3 (pl) 2008-03-18 2015-08-31 Basf Se Sposób wytwarzania uretanów z jedno- i dwufunkcyjnych amin aromatycznych
US8519174B2 (en) * 2008-03-18 2013-08-27 Basf Se Metal carbamates formed from diaminophenylmethane
BRPI0822694B1 (pt) 2008-05-15 2018-11-27 Asahi Kasei Chemicals Corp processo para produzir um isocianato
JP5242678B2 (ja) 2008-05-15 2013-07-24 旭化成ケミカルズ株式会社 炭酸ジアリールを用いるイソシアネートの製造方法
ES2331505B2 (es) * 2008-07-04 2010-09-20 Universidad Politecnica De Valencia Preparacion de carbamatos con catalizadores solidos.
KR20110055596A (ko) * 2008-08-22 2011-05-25 바스프 에스이 이작용성 방향족 아민과 디알킬 카보네이트로 이루어진 우레탄의 제조 방법
KR20120087949A (ko) * 2009-10-21 2012-08-07 바스프 에스이 우레탄의 제조 방법
WO2012098075A1 (en) * 2011-01-18 2012-07-26 Glaxo Group Limited Process for the preparation of retigabine
JP6292124B2 (ja) * 2012-12-14 2018-03-14 宇部興産株式会社 カルバメート化合物の製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
US3627813A (en) * 1969-02-03 1971-12-14 Upjohn Co A process of preparing carbamates
US3763217A (en) * 1970-12-03 1973-10-02 Halcon International Inc Preparation of carbamates
US3919280A (en) * 1974-07-05 1975-11-11 Atlantic Richfield Co Recovery of solvents employed in the production of isocyanates from esters of carbamic acids
IT1064762B (it) * 1976-04-14 1985-02-25 Snam Progetti Processo per la preparazione di ureiani aromatici

Also Published As

Publication number Publication date
EP0048371A2 (de) 1982-03-31
BR8105975A (pt) 1982-06-08
ZA816484B (en) 1983-01-26
EP0048371A3 (en) 1982-04-28
DE3161792D1 (en) 1984-02-02
EP0048371B1 (de) 1983-12-28
CA1166649A (en) 1984-05-01
AU7523581A (en) 1982-03-25
DE3035354A1 (de) 1982-04-29
JPS5782361A (en) 1982-05-22
ES505616A0 (es) 1982-08-16

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