DK549485A - PROCEDURE FOR THE PREPARATION OF N-VINYL FORMAMIDE - Google Patents

PROCEDURE FOR THE PREPARATION OF N-VINYL FORMAMIDE Download PDF

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Publication number
DK549485A
DK549485A DK549485A DK549485A DK549485A DK 549485 A DK549485 A DK 549485A DK 549485 A DK549485 A DK 549485A DK 549485 A DK549485 A DK 549485A DK 549485 A DK549485 A DK 549485A
Authority
DK
Denmark
Prior art keywords
hydrogen cyanide
preparation
pressure
mbar
isolated
Prior art date
Application number
DK549485A
Other languages
Danish (da)
Other versions
DK549485D0 (en
Inventor
Fritz Brunnmueller
Michael Kroener
Walter Goetze
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of DK549485D0 publication Critical patent/DK549485D0/en
Publication of DK549485A publication Critical patent/DK549485A/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C231/00—Preparation of carboxylic acid amides
    • C07C231/06—Preparation of carboxylic acid amides from nitriles by transformation of cyano groups into carboxamide groups

Abstract

1. A process for the preparation of N-vinylformamide of the formula CH2 =CH-NH-CHO (I) by pyrolysis of formylalaninenitrile of the formula see diagramm : EP0184074,P6,F1 in the presence of a solid as a catalyst under reduced pressure, at from 250 to 650 degrees C and with cooling of the pyrolysis products, which essentially consist of I and hydrogen cyanide, likewise under reduced pressure and with isolation of I, wherein the pyrolysis products are cooled to a temperature of from 200 to -10 degree C under from 10 to 150 mbar so that substantial fractionation into condensed I and gaseous hydrogen cyanide takes place, I is isolated from the condensate, and the gaseous hydrogen cyanide which has not been separated off is then subjected to chemisorption with about an equimolar amount of acetaldehyde at from -20 to +30 degrees C under from 5 to 140 mbar with formation of lactonitrile, and the latter is isolated after the pressure has been brought to atmosphère pressure.
DK549485A 1984-11-29 1985-11-28 PROCEDURE FOR THE PREPARATION OF N-VINYL FORMAMIDE DK549485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843443463 DE3443463A1 (en) 1984-11-29 1984-11-29 METHOD FOR PRODUCING N-VINYLFORMAMIDE

Publications (2)

Publication Number Publication Date
DK549485D0 DK549485D0 (en) 1985-11-28
DK549485A true DK549485A (en) 1986-05-30

Family

ID=6251421

Family Applications (1)

Application Number Title Priority Date Filing Date
DK549485A DK549485A (en) 1984-11-29 1985-11-28 PROCEDURE FOR THE PREPARATION OF N-VINYL FORMAMIDE

Country Status (8)

Country Link
EP (1) EP0184074B1 (en)
JP (1) JPS61134359A (en)
AT (1) ATE43334T1 (en)
DE (2) DE3443463A1 (en)
DK (1) DK549485A (en)
ES (1) ES8606252A1 (en)
FI (1) FI85137C (en)
NO (1) NO162963C (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603450A1 (en) * 1986-02-05 1987-08-06 Basf Ag METHOD FOR PURIFYING N-VINYLFORMAMIDE
US4906777A (en) * 1988-10-19 1990-03-06 Air Products And Chemicals, Inc. Synthesis of ethylidene bis-formamide using formic acid
US4968841A (en) * 1989-11-14 1990-11-06 Air Products And Chemicals, Inc. Synthesis of ethylidene bisformamide from vinyl acetate
US5023375A (en) * 1990-01-17 1991-06-11 Air Products And Chemicals, Inc. Process for the synthesis of amides from vinyl acetate
DE4030380A1 (en) * 1990-09-26 1992-04-02 Basf Ag ANIONICALLY POLYMERIZED N-VINYLFORMAMIDE AND METHOD FOR PRODUCING THE SAME
DE4428901A1 (en) * 1994-08-19 1996-02-22 Basf Ag Process for the preparation of N-alkenylcarboxamides
US5527963A (en) * 1994-10-16 1996-06-18 Mitsubishi Chemical Corporation Production of N-vinylformamide
DE4438366A1 (en) * 1994-10-27 1996-05-02 Basf Ag Process for the preparation of N-alkenylcarboxamides
US5935896A (en) * 1996-05-02 1999-08-10 Basf Aktiengesellschaft Catalyst supports and catalysts for dehydrocyanation reactions and processes for producing them
US5951828A (en) * 1996-05-10 1999-09-14 Basf Aktiengesellschaft Continuous distillation of thermolabile monomers
US7026511B2 (en) * 2002-08-30 2006-04-11 University Of Pittsburgh Synthesis of N-vinylformamide
US8349090B2 (en) 2008-10-20 2013-01-08 Basf Se Process for removing carbonaceous deposits on surfaces of catalysts and plant parts
EP2376426B1 (en) * 2008-12-15 2014-09-24 Basf Se Method for producing n-vinylcarboxamides
CA2943935C (en) 2014-04-08 2019-04-30 Mitsubishi Rayon Co., Ltd. Method for producing vinylamine unit-containing polymer and polymerization product
US10696622B2 (en) 2016-08-29 2020-06-30 Eastman Chemical Company Synthesis of N-vinyl carboxylic acid amides
WO2018070163A1 (en) * 2016-10-11 2018-04-19 昭和電工株式会社 Production method for lactonitrile-containing liquid, and lactonitrile-containing liquid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014094B (en) * 1956-05-18 1957-08-22 Basf Ag Process for the preparation of cyanohydrins
DE1228246B (en) * 1965-03-06 1966-11-10 Bayer Ag Process for the preparation of derivatives of N-acylvinylamine
BE757107A (en) * 1969-10-06 1971-04-06 Basf Ag PROCESS FOR PREPARING ALPHA-N-FORMYLAMINO-ACID DERIVATIVES

Also Published As

Publication number Publication date
JPS61134359A (en) 1986-06-21
FI854623A0 (en) 1985-11-22
FI854623A (en) 1986-05-30
NO854767L (en) 1986-05-30
DE3443463A1 (en) 1986-05-28
DE3570431D1 (en) 1989-06-29
ATE43334T1 (en) 1989-06-15
EP0184074B1 (en) 1989-05-24
ES549386A0 (en) 1986-04-16
NO162963B (en) 1989-12-04
FI85137B (en) 1991-11-29
DK549485D0 (en) 1985-11-28
ES8606252A1 (en) 1986-04-16
EP0184074A1 (en) 1986-06-11
JPH0511104B2 (en) 1993-02-12
FI85137C (en) 1992-03-10
NO162963C (en) 1990-03-14

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