ZA806546B - A process for the production of urethanes useful in the production of isocyanates - Google Patents

A process for the production of urethanes useful in the production of isocyanates

Info

Publication number
ZA806546B
ZA806546B ZA00806546A ZA806546A ZA806546B ZA 806546 B ZA806546 B ZA 806546B ZA 00806546 A ZA00806546 A ZA 00806546A ZA 806546 A ZA806546 A ZA 806546A ZA 806546 B ZA806546 B ZA 806546B
Authority
ZA
South Africa
Prior art keywords
production
lead
salts
catalysts
tin
Prior art date
Application number
ZA00806546A
Inventor
S Penninger
R Fauss
K Koenig
K Findeisen
R Sundermann
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6084534&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA806546(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer Ag filed Critical Bayer Ag
Publication of ZA806546B publication Critical patent/ZA806546B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D213/00—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members
    • C07D213/02—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members
    • C07D213/04—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom
    • C07D213/60—Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D213/72—Nitrogen atoms
    • C07D213/75—Amino or imino radicals, acylated by carboxylic or carbonic acids, or by sulfur or nitrogen analogues thereof, e.g. carbamates
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/16—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms
    • C07D295/20—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms acylated on ring nitrogen atoms by radicals derived from carbonic acid, or sulfur or nitrogen analogues thereof
    • C07D295/205—Radicals derived from carbonic acid
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D307/91—Dibenzofurans; Hydrogenated dibenzofurans
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/46—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom
    • C07D333/48—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings substituted on the ring sulfur atom by oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Heterocyclic Compounds Containing Sulfur Atoms (AREA)
  • Furan Compounds (AREA)
  • Pyridine Compounds (AREA)
  • External Artificial Organs (AREA)
  • Circuits Of Receivers In General (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Peptides Or Proteins (AREA)

Abstract

1. A process for the production of urethanes by reacting a) urea or polyurets with b) primary amines and c) alcohols in the presence of catalysts at temperatures in the range from 120 to 350 degrees C, characterised in that the reaction is carried out in the presence of any esterification catalysts for carboxylic acids with the proviso that, in the production of di- and/or polyurethanes, the esterification catalysts are selected from the group comprising (i) inorganic or organic bases which are inert under the reaction conditions, (ii) Lewis acids, (iii) salts or complex compounds of transition metals, except for alcoholates of titanium, and (iv) lead naphthenate, acetyl acetonates of lead, aluminium or magnesium, dibutyl tin dilaurate, dibutyl tin diacetate, di-(2-ethylhexyl)-tin oxide, dioctyl tin oxide, tin salts of C1 -C20 -carboxylic acids and also acetates, chlorides, sulfates or octoates of divalent lead.
ZA00806546A 1979-10-27 1980-10-24 A process for the production of urethanes useful in the production of isocyanates ZA806546B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792943481 DE2943481A1 (en) 1979-10-27 1979-10-27 METHOD FOR PRODUCING URETHANES AND THE USE THEREOF FOR PRODUCING ISOCYANATES

Publications (1)

Publication Number Publication Date
ZA806546B true ZA806546B (en) 1981-11-25

Family

ID=6084534

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00806546A ZA806546B (en) 1979-10-27 1980-10-24 A process for the production of urethanes useful in the production of isocyanates

Country Status (9)

Country Link
EP (1) EP0027940B2 (en)
JP (1) JPS57114561A (en)
AT (1) ATE4640T1 (en)
AU (1) AU538535B2 (en)
BR (1) BR8006849A (en)
CA (1) CA1144562A (en)
DE (2) DE2943481A1 (en)
ES (1) ES496232A0 (en)
ZA (1) ZA806546B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110573A1 (en) * 1981-03-18 1982-10-21 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING N- AND O-SUBSTITUTED DI- AND / OR POLYURETHANES
DE3523692A1 (en) * 1985-07-03 1987-01-08 Basf Ag METHOD FOR PRODUCING (OMEGA) -ISOCYANATOALKYL (METH) ACRYLATES
US4925971A (en) * 1987-12-08 1990-05-15 Asahi Kasei Kogyo Kabushiki Kaisha Method for producing aliphatic o-arylurethanes
DE4342426A1 (en) * 1993-12-13 1995-06-14 Bayer Ag Process for the preparation of diurethanes and their use in the preparation of diisocyanates
DE4441176A1 (en) 1994-11-18 1996-05-23 Bayer Ag Polyisocyanates containing allophanate groups
DE19523386A1 (en) * 1995-06-23 1997-01-09 Bayer Ag Process for removing by-products from diurethanes
DE19541384A1 (en) * 1995-11-07 1997-05-15 Basf Ag Process for the preparation of organic diurethanes and / or polyurethanes and their use for the preparation of di- and / or polyisocyanates
WO2001047870A2 (en) * 1999-12-27 2001-07-05 Huntsman International Llc Process for the production of aromatic polycarbamates
US9150502B2 (en) 2009-03-26 2015-10-06 Mitsui Chemicals, Inc. Urethane compound and method for producing the same, and isocyanate and method for producing the same
WO2010116871A1 (en) * 2009-04-09 2010-10-14 三井化学株式会社 Urethane compound and process for production thereof, and isocyanate and process for production thereof
JP5643517B2 (en) * 2010-02-04 2014-12-17 三井化学株式会社 Catalyst treatment method
JP5518605B2 (en) 2010-07-07 2014-06-11 三井化学株式会社 Toluene dicarbamate production method, toluene diisocyanate production method, and toluene dicarbamate

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409712A (en) * 1944-02-03 1946-10-22 Du Pont Chemical process and products
US2806051A (en) * 1955-11-01 1957-09-10 Goodrich Co B F Method for preparing urethanes by reacting urea, amines and an alcohol
DE2917569A1 (en) * 1979-04-30 1980-11-13 Basf Ag METHOD FOR PRODUCING AROMATIC DI- AND POLYURETHANES
DE2917493A1 (en) * 1979-04-30 1980-11-13 Basf Ag METHOD FOR PRODUCING ALIPHATIC AND CYCLOALIPHATIC DI- AND POLYURETHANES

Also Published As

Publication number Publication date
EP0027940B1 (en) 1983-09-14
EP0027940A1 (en) 1981-05-06
ES8106883A1 (en) 1981-09-16
ES496232A0 (en) 1981-09-16
ATE4640T1 (en) 1983-09-15
JPH0314819B2 (en) 1991-02-27
AU538535B2 (en) 1984-08-16
BR8006849A (en) 1981-04-28
CA1144562A (en) 1983-04-12
DE2943481A1 (en) 1981-05-07
AU6371380A (en) 1981-04-30
EP0027940B2 (en) 1986-12-30
DE3064837D1 (en) 1983-10-20
JPS57114561A (en) 1982-07-16

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