CS203019B2 - ) Způsob přípravy difenylmethanmonokarbámátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů - Google Patents

) Způsob přípravy difenylmethanmonokarbámátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů Download PDF

Info

Publication number
CS203019B2
CS203019B2 CS786363A CS636378A CS203019B2 CS 203019 B2 CS203019 B2 CS 203019B2 CS 786363 A CS786363 A CS 786363A CS 636378 A CS636378 A CS 636378A CS 203019 B2 CS203019 B2 CS 203019B2
Authority
CS
Czechoslovakia
Prior art keywords
acid
process according
reaction
carbon atoms
protonic
Prior art date
Application number
CS786363A
Other languages
Czech (cs)
English (en)
Inventor
Edward T Shawl
John G Zajacek
Original Assignee
Atlantic Richfield Co
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 Atlantic Richfield Co filed Critical Atlantic Richfield Co
Priority to CS795138A priority Critical patent/CS203020B2/cs
Publication of CS203019B2 publication Critical patent/CS203019B2/cs

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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C265/00—Derivatives of isocyanic acid
    • C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
    • 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
    • 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
    • C07C269/06—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 by reactions not involving the formation of carbamate groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids
    • C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
    • C07C271/10—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C271/12—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids
    • C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
    • C07C271/10—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C271/22—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to carbon atoms of hydrocarbon radicals substituted by carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids
    • C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
    • C07C271/26—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring
    • C07C271/28—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring to a carbon atom of a non-condensed six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids
    • C07C271/40—Esters of carbamic acids having oxygen atoms of carbamate groups bound to carbon atoms of six-membered aromatic rings
    • C07C271/42—Esters of carbamic acids having oxygen atoms of carbamate groups bound to carbon atoms of six-membered aromatic rings with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms
    • C07C271/44—Esters of carbamic acids having oxygen atoms of carbamate groups bound to carbon atoms of six-membered aromatic rings with the nitrogen atoms of the carbamate groups bound to hydrogen atoms or to acyclic carbon atoms to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CS786363A 1977-10-03 1978-10-02 ) Způsob přípravy difenylmethanmonokarbámátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů CS203019B2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CS795138A CS203020B2 (cs) 1978-05-15 1979-07-23 Způsob přípravý difenylrnethanmonokarbamátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83869177A 1977-10-03 1977-10-03

Publications (1)

Publication Number Publication Date
CS203019B2 true CS203019B2 (cs) 1981-02-27

Family

ID=25277813

Family Applications (1)

Application Number Title Priority Date Filing Date
CS786363A CS203019B2 (cs) 1977-10-03 1978-10-02 ) Způsob přípravy difenylmethanmonokarbámátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů

Country Status (3)

Country Link
US (1) US4146727A (fr)
BE (1) BE870911A (fr)
CS (1) CS203019B2 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904917A1 (de) * 1979-02-09 1980-08-21 Basf Ag Verfahren zur herstellung von methylenbis-(4-phenylcarbaminsaeureester)
US4202986A (en) * 1979-02-12 1980-05-13 Atlantic Richfield Company Preparation of diphenylmethane dicarbamates and polymethylene polyphenyl carbamates with Lewis acid catalysts intercalated in graphite
US4230877A (en) * 1979-03-22 1980-10-28 Atlantic Richfield Company Method for increasing the 4,4'dicarbamate isomer of the diphenylmethane dicarbamates during preparation thereof
JPS5612357A (en) * 1979-07-09 1981-02-06 Mitsui Toatsu Chem Inc Production of polymethylenepolyphenylpolycarbamate
DE2931554A1 (de) * 1979-08-03 1981-02-26 Basf Ag Verfahren zur herstellung von methylen-bis-phenyl-carbaminsaeureestern und polymethylen-polyphenylcarbaminsaeureestern
DE2942503A1 (de) * 1979-10-20 1981-05-07 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von aromatischen di- und/oder polyisocyanaten
JPS5679657A (en) * 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Novel preparation of polyisocyanate
JPS56100820A (en) * 1980-01-16 1981-08-13 Mitsui Toatsu Chem Inc Production of polymethylene polyphenyl polycarbamate
DE3013907A1 (de) * 1980-04-11 1981-10-22 Basf Ag, 6700 Ludwigshafen Verfahren zur herstellung von methylen-bis-phenylcarbaminsaeureestern und polymethylen-polyphenylcarbamidsaeureestern
US4290968A (en) * 1980-07-23 1981-09-22 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
US4369141A (en) * 1980-08-25 1983-01-18 Atlantic Richfield Company Process to improve isocyanate yield upon pyrolysis of a polyfunctional urethane which has been extracted with a combination of hydrochloric acid and alcohol
US4287132A (en) * 1980-09-29 1981-09-01 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
US4292254A (en) * 1980-10-17 1981-09-29 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
US4487713A (en) * 1981-06-26 1984-12-11 Exxon Research & Engineering Co. Production of isocyanates from esters of aromatic carbamic acids (urethanes)
EP0110732B1 (fr) * 1982-12-07 1987-03-11 Asahi Kasei Kogyo Kabushiki Kaisha Procédé de préparation de dicarbamates de diphénylméthane
JPS59172451A (ja) * 1983-03-18 1984-09-29 Asahi Chem Ind Co Ltd ポリイソシアナ−ト類の製造方法
US4735682A (en) * 1985-02-21 1988-04-05 James River-Norwalk, Inc. Method for recovery of cellulosic fibers containing latex solids from latex bonded broke
FR2649104B1 (fr) * 1989-06-29 1991-09-27 Rhone Poulenc Chimie
CN102267925A (zh) * 2010-06-02 2011-12-07 中国科学院过程工程研究所 一种无机液体酸催化的苯氨基甲酸酯缩合产物的后处理方法
WO2016120167A1 (fr) 2015-01-30 2016-08-04 Basf Se Polyisocyanates de polyphényle polymethylène pauvres en produits secondaires

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946768A (en) * 1957-08-12 1960-07-26 Bayer Ag Condensation products of carbamic acid esters
US3956360A (en) * 1973-06-21 1976-05-11 Atlantic Richfield Company Process for the manufacture of urethanes
US3919279A (en) * 1974-06-26 1975-11-11 Atlantic Richfield Co Catalytic production of isocyanates from esters of carbamic acids

Also Published As

Publication number Publication date
BE870911A (fr) 1979-03-29
US4146727A (en) 1979-03-27

Similar Documents

Publication Publication Date Title
CS203019B2 (cs) ) Způsob přípravy difenylmethanmonokarbámátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů
EP3250622B1 (fr) Polyphénylène-polyméthylène-polyisocyanate à faible teneur en produits annexe
CA1116177A (fr) Procede pour la preparation de diphenylmethane dicarbamates et de polymethylene polyphenyl carbamates
US3992430A (en) Process for preparing aromatic isocyanates
CA1105480A (fr) Traduction non-disponible
US6992214B2 (en) Integrated process for the preparation of aromatic isocyanates and procedures for effecting the relative intermediate phases
KR20130089233A (ko) 고체 루이스 산 위의 이소시아네이트의 합성을 위한 불균일하게 촉매화된 카바메이트 해리
JPH027944B2 (fr)
EP1323708B1 (fr) Procédé de fabrication de carbamates et procédé de production d'isocyanates
JPH0114218B2 (fr)
US4172948A (en) Preparation of diphenylmethane mono and dicarbamates and polymethylene polyphenyl carbamates
KR20140093238A (ko) 담색 폴리이소시아네이트의 제조방법
EP0881213B1 (fr) Procédé de préparation d'uréthanes aromatiques
EP0016441B1 (fr) Procédé pour la préparation d'un mélange de dicarbamates de diphénylméthane et de carbamates de polyméthylène polyphényle
KR100746846B1 (ko) 방향족 우레탄의 연속 합성법
US4230876A (en) Process for the preparation of urethanes
CS203020B2 (cs) Způsob přípravý difenylrnethanmonokarbamátu a difenylmethandikarbamátu a homologů polymethylenpolyfenylkarbamátu a jejich derivátů
EP1893563B1 (fr) Fabrication de n-arylcarbamates et de n-arylisocyanates
US4146550A (en) Process for the preparation of an aliphatic monoisocyanate
JP7742424B2 (ja) ブロックイソシアネート化合物の製造方法及びイソシアネート化合物の製造方法
JPH0329785B2 (fr)
JPH05255232A (ja) 高純度の芳香族ジウレタンおよび／またはポリウレタンの製法
US4267353A (en) Preparation of aromatic urethanes
CA1309724C (fr) Diisocyanates et procede pour leur preparation
JPH051016A (ja) ポリメチレンポリフエニルカルバメート類の製造方法