GB1379002A - Method of purification of laurolactam - Google Patents

Method of purification of laurolactam

Info

Publication number
GB1379002A
GB1379002A GB368973A GB368973A GB1379002A GB 1379002 A GB1379002 A GB 1379002A GB 368973 A GB368973 A GB 368973A GB 368973 A GB368973 A GB 368973A GB 1379002 A GB1379002 A GB 1379002A
Authority
GB
United Kingdom
Prior art keywords
group
carbon atoms
laurolactam
alkyl group
jan
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
GB368973A
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.)
Polymer Corp
Original Assignee
Polymer Corp
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 Polymer Corp filed Critical Polymer Corp
Publication of GB1379002A publication Critical patent/GB1379002A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D201/00—Preparation, separation, purification or stabilisation of unsubstituted lactams
    • C07D201/16—Separation or purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Hydrogenated Pyridines (AREA)

Abstract

1379002 Purification of laurolactam POLYMER CORP 24 Jan 1973 [24 Jan 1972] 3689/73 Heading C2C [Also in Division C3] A process for purifying laurolactam comprises crystallizing the lactam from an organic solvent having the general formula wherein X is a (C 1 -C 18 ) alkyl group, an alkoxyalkyl group having from 1 to 18 carbon atoms in the alkyl group, or an alkoxyalkylene group having from 1 to 18 carbon atoms in the alkyl group and from 1 to 6 carbon atoms in the alkyiene group, or wherein X together with Y, forms a heterocyclic ring having 5 or 6 ring carbon atoms, and Y has either the same meaning as X, or, if X is alkyl, then Y may represent an aryl group with 1 or 2 benzene nuclei or a hydroxyalkyl group. The process is preferably carried out under an inert gas atmosphere. Suitable specified solvents include 1,2-dimethoxyethane, ethylene glycol monoethyl ether, diethyleneglycol diethyl ether, diethyleneglycol dibutyl ether, ethyleneglycol monobenzylether, triethyleneglycol dimethylether, tetramethyleneglycol dimethylether, tetrahydrofuran, anisole, dibutyl ether, methoxyethyl butyrate, venatrol, homoveratrol and dioxane.
GB368973A 1972-01-24 1973-01-24 Method of purification of laurolactam Expired GB1379002A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS42872A CS165031B1 (en) 1972-01-24 1972-01-24

Publications (1)

Publication Number Publication Date
GB1379002A true GB1379002A (en) 1975-01-02

Family

ID=5336320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB368973A Expired GB1379002A (en) 1972-01-24 1973-01-24 Method of purification of laurolactam

Country Status (8)

Country Link
JP (1) JPS4881883A (en)
CA (1) CA973083A (en)
CH (1) CH560189A5 (en)
CS (1) CS165031B1 (en)
DE (1) DE2302977A1 (en)
FR (1) FR2169209B1 (en)
GB (1) GB1379002A (en)
NL (1) NL7301014A (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1416202A (en) * 1963-11-30 1965-10-29 Basf Ag purification of pyrrolidone-2

Also Published As

Publication number Publication date
CH560189A5 (en) 1975-03-27
FR2169209B1 (en) 1977-02-04
NL7301014A (en) 1973-07-26
CS165031B1 (en) 1975-11-28
CA973083A (en) 1975-08-19
DE2302977A1 (en) 1973-08-02
FR2169209A1 (en) 1973-09-07
JPS4881883A (en) 1973-11-01

Similar Documents

Publication Publication Date Title
KR840000515A (en) Preparation of N-aryl-piperazine alkanamide
AU8145087A (en) Process for preparing mono-, bi- and tricyclic amino acids, intermediates of this process, and a process for preparing same
GB1379002A (en) Method of purification of laurolactam
ES479023A1 (en) Process for the recovery of gallium from very basic solutions by liquid/liquid extraction.
KR950008491A (en) Method for preparing 1-substituted-5 (4H) -tetrazolinone
ES462355A1 (en) Process for the purification of epsilon-caprolactam
JPS5210816A (en) Process for recovering low carbon ferro- chromium slag
GB1451459A (en) Process for preparing 3-alkyl-3-cephem-4-carboxylic acids and intermediates thereof
GB1141731A (en) The preparation of enamines and gem-diamino compounds
JPS5655319A (en) Method of obtaining conjugate diolefin from c44 or c55hydrocarbon mixture
GB1167793A (en) Separation of Methacrylic Acid and Acrylic Acid
GB1496238A (en) Purification method for prolylleucylglycinamide
ES478886A1 (en) Process for the isomerization of 3-vinyl-piperidine derivatives.
GB1198422A (en) Process for the preparation of Nitrogen-Containing Derivatives of Acids
Kobayashi Studies on the Rapid Methods for the Determination of Atmospheric Organic Solvent Vapors (VI) A Rapid Method for the Determination of Low Concentrations of Methyl Acrylate Vapor
GB1224518A (en) Preparation of carboxylic esters
JPS523091A (en) A prcess for preparing cephalosporins
GB1468046A (en) Production of sterically hindered 5-membered heterocyclic rings containing nitrogen
US3249635A (en) Linear phosphonitrilic oxygen terminated derivatives
GB1202782A (en) Process for the preparation of heterocyclic compounds
GB983607A (en) Novel 4,5-seco-steroid compounds and methods for the formation thereof
JPS51138642A (en) Process for preparing guanidinobenzoic acid derivatives
GB1409935A (en) Tetracyclic compounds and salts thereof and a method of preparing same
GB1514694A (en) Process for the preparation of omikron-(n,n-disubstituted aminomethyl)-phenols
JPS51125092A (en) A process for preparing novel substituted s-triazines

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees