BR9809008A - Processo para a preparação de lactamas cìclicas - Google Patents

Processo para a preparação de lactamas cìclicas

Info

Publication number
BR9809008A
BR9809008A BR9809008-9A BR9809008A BR9809008A BR 9809008 A BR9809008 A BR 9809008A BR 9809008 A BR9809008 A BR 9809008A BR 9809008 A BR9809008 A BR 9809008A
Authority
BR
Brazil
Prior art keywords
preparation
cyclic
cycloalkyl
alkyl
formula
Prior art date
Application number
BR9809008-9A
Other languages
English (en)
Inventor
Eberhard Fuchs
Rolf Fischer
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 BR9809008A publication Critical patent/BR9809008A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/02—Preparation of lactams
    • C07D201/08—Preparation of lactams from carboxylic acids or derivatives thereof, e.g. hydroxy carboxylic acids, lactones or nitriles

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Other In-Based Heterocyclic Compounds (AREA)
  • Polyamides (AREA)
  • Hydrogenated Pyridines (AREA)
  • Catalysts (AREA)
  • Pyrrole Compounds (AREA)

Abstract

"PROCESSO PARA A PREPARAçãO DE LACTAMAS CìCLICAS". A invenção se refere a um processo para a produção de lactamas cíclicas de fórmula (I): na qual R^ 1^ representa um átomo de hidrogênio, um alquila, um ciclo-alquila ou um arila; A representa um radical alquileno C~ 3~-C~ 12~, que pode ser substituído por 1, 2, 3, 4, 5 ou 6 substituintes, selecionados, independentemente um dos outros, dentre grupos alquila, ciclo-alquila ou arila. Neste processo, uma nitrila de ácido <sym>-amino-carbónico de fórmula (II): HR^ 1^N - A - CN (II) na qual R^ 1^ e A têm os significados dados acima, é reagida na presença de um pelo menos um catalisador. O processo é caracterizado pelo fato de que a nitrila II é convertida numa mistura de oligómeros e então tratada com vapor d'água superaquecido.
BR9809008-9A 1997-05-02 1998-04-30 Processo para a preparação de lactamas cìclicas BR9809008A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19718706A DE19718706A1 (de) 1997-05-02 1997-05-02 Verfahren zur Herstellung cyclischer Lactame
PCT/EP1998/002571 WO1998050355A1 (de) 1997-05-02 1998-04-30 Verfahren zur herstellung cyclischer lactame

Publications (1)

Publication Number Publication Date
BR9809008A true BR9809008A (pt) 2000-08-08

Family

ID=7828520

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9809008-9A BR9809008A (pt) 1997-05-02 1998-04-30 Processo para a preparação de lactamas cìclicas

Country Status (15)

Country Link
US (1) US6222033B1 (pt)
EP (1) EP0980355B1 (pt)
JP (1) JP2001526652A (pt)
KR (1) KR20010012172A (pt)
CN (1) CN1113865C (pt)
AR (1) AR012617A1 (pt)
AU (1) AU7910398A (pt)
BR (1) BR9809008A (pt)
CA (1) CA2288336A1 (pt)
DE (2) DE19718706A1 (pt)
ES (1) ES2196568T3 (pt)
ID (1) ID24234A (pt)
MY (1) MY125884A (pt)
TW (1) TW430659B (pt)
WO (1) WO1998050355A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1245563A1 (en) * 2001-03-27 2002-10-02 Dsm N.V. Process for the preparation of epsilon-caprolactam
US6437089B1 (en) * 2001-06-01 2002-08-20 E. I. Du Pont De Nemours And Company Process for the production of nylon 6

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2245129A (en) 1935-01-02 1941-06-10 Du Pont Process for preparing linear polyamides
US2301964A (en) 1941-09-12 1942-11-17 Du Pont Method of preparing lactams
DE952442C (de) 1955-02-17 1956-11-15 Huels Chemische Werke Ag Verfahren zur Herstellung von ªŠ-Caprolactam
US3485821A (en) 1967-05-29 1969-12-23 Techni Chem Co The Process for preparing caprolactam and its alkyl substituted derivatives
JPS4821958B1 (pt) 1969-01-28 1973-07-02
US3988319A (en) 1974-09-16 1976-10-26 Allied Chemical Corporation Process for producing caprolactam from 6-aminocaproic acid
US4568736A (en) * 1984-09-17 1986-02-04 The Standard Oil Company Preparation of polyamide from omega-aminonitrile with oxygen containing phosphorus catalyst
DE3524394A1 (de) 1985-07-09 1987-01-15 Basf Ag Verfahren zur gewinnung von caprolactam durch spaltung von oligomeren des caprolactams
US4625023A (en) 1985-09-03 1986-11-25 Allied Corporation Selective conversion of aliphatic and aromatic aminonitriles and/or dinitriles into lactams
US4628085A (en) 1985-09-03 1986-12-09 Allied Corporation Use of silica catalyst for selective production of lactams
DE3643010A1 (de) 1986-12-17 1988-06-30 Basf Ag Verfahren zur herstellung von caprolactam
DE3843793A1 (de) 1988-12-24 1990-07-05 Basf Ag Verfahren zur herstellung von caprolactam
DE4033259A1 (de) * 1990-10-19 1992-04-23 Basf Ag Verfahren zur herstellung von 2-pyrrolidinonen
DE4211609A1 (de) 1991-08-30 1993-03-04 Bayer Ag Gewinnung von caprolactam durch thermische spaltung von polyamid 6
DE4339648A1 (de) * 1993-11-20 1995-05-24 Basf Ag Verfahren zur Herstellung von Caprolactam
FR2714379B1 (fr) * 1993-12-23 1996-02-02 Rhone Poulenc Chimie Procédé de préparation de lactame.
DE4441962A1 (de) * 1994-11-25 1996-05-30 Basf Ag Verfahren zur Herstellung von Caprolactam
DE4442727A1 (de) * 1994-12-01 1996-06-05 Basf Ag Verfahren zur Herstellung von Caprolactam
DE4443125A1 (de) * 1994-12-03 1996-06-05 Basf Ag Verfahren zur Herstellung von Caprolactam
FR2729949A1 (fr) * 1995-01-27 1996-08-02 Rhone Poulenc Chimie Procede de preparation de lactame
DE19517823A1 (de) 1995-05-18 1996-11-21 Basf Ag Verfahren zur Herstellung von Caprolactam
DE19628805A1 (de) * 1996-07-17 1998-01-22 Basf Ag Verfahren zur Herstellung von Caprolactam aus 6-Aminocapronitril

Also Published As

Publication number Publication date
KR20010012172A (ko) 2001-02-15
MY125884A (en) 2006-08-30
CN1254332A (zh) 2000-05-24
JP2001526652A (ja) 2001-12-18
AR012617A1 (es) 2000-11-08
DE59807971D1 (de) 2003-05-22
WO1998050355A1 (de) 1998-11-12
US6222033B1 (en) 2001-04-24
ID24234A (id) 2000-07-13
CA2288336A1 (en) 1998-11-12
TW430659B (en) 2001-04-21
ES2196568T3 (es) 2003-12-16
AU7910398A (en) 1998-11-27
EP0980355A1 (de) 2000-02-23
EP0980355B1 (de) 2003-04-16
DE19718706A1 (de) 1998-11-05
CN1113865C (zh) 2003-07-09

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 1912 DE 28/08/2007.