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Class Information
Number: 548/554
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is five-membered consisting of one nitrogen and four carbons (e.g., halopyrrolidines, etc.) > Chalcogen attached directly to the five-membered hetero ring by nonionic bonding (e.g., 3-pyrrolidinols, etc.) > Chalcogen bonded directly to a ring carbon of the five-membered hetero ring which is adjacent to the ring nitrogen (e.g., 2-pyrrolidones, etc.) > Processes of forming 2-pyrrolidone which is unsubstituted or alkyl or alkenyl substituted only > Directly from a -coo- containing compound (e.g., from methyl acrylate, etc.)
Description: Processes wherein the 2-pyrrolidone compound is prepared directly from a compound which contains the -COO- group.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7465813 |
Process for making 5-methyl-N-alkyl-2-pyrrolidone from alkyl amine(s) and levulinic acid |
Dec. 16, 2008 |
| 7002024 |
Production of a N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with aryl amines |
Feb. 21, 2006 |
| 6995275 |
Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds |
Feb. 7, 2006 |
| 6992195 |
Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with arylamines |
Jan. 31, 2006 |
| 6987192 |
Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds |
Jan. 17, 2006 |
| 6984736 |
Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds |
Jan. 10, 2006 |
| 6982339 |
Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with aryl amines |
Jan. 3, 2006 |
| 6900337 |
Production of 5-methyl-1-hydrocarbyl-2-pyrrolidone by reductive amination of levulinic acid |
May. 31, 2005 |
| 6855731 |
Production of 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with nitro compounds |
Feb. 15, 2005 |
| 6828278 |
Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with arly amines |
Dec. 7, 2004 |
| 6828277 |
Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds |
Dec. 7, 2004 |
| 6706893 |
Methods of making pyrrolidones |
Mar. 16, 2004 |
| 6492532 |
Method for producing carbonyl compound by dehydrogenating alcohol |
Dec. 10, 2002 |
| 6350883 |
Method for preparing lactam |
Feb. 26, 2002 |
| 6153766 |
Method of producing 4-hydroxy-2-pyrrolidinone and method of purifying the same |
Nov. 28, 2000 |
| 6008375 |
Process for manufacturing 2-pyrrolidone or N-alkylpyrrolidones |
Dec. 28, 1999 |
| 5912358 |
Process for preparing 2-pyrrolidones |
Jun. 15, 1999 |
| 5801252 |
Process for production of cyclic N-vinyl carboxylic acid amide |
Sep. 1, 1998 |
| 5641881 |
Preparation of N-alkenylcarboxamides |
Jun. 24, 1997 |
| 5502185 |
Preparation of lactams |
Mar. 26, 1996 |
| 5478950 |
Process for producing pyrrolidone and N-alkyl pyrrolidones |
Dec. 26, 1995 |
| 5434273 |
Preparation of N-substituted 2-pyrrolidones |
Jul. 18, 1995 |
| 5393888 |
Non-catalytic liquid phase conversion of butyrolactone and ammonia to 2-pyrrolidone product in high yield and selectivity |
Feb. 28, 1995 |
| 5298628 |
Process for the production of optically active 4-aryl-2-pyrrolidinones |
Mar. 29, 1994 |
| 5276165 |
Preparation of N-substituted lactams |
Jan. 4, 1994 |
| 5157127 |
Preparation of N-substituted pyrrolidones |
Oct. 20, 1992 |
| 5142066 |
Stereoselective process for the preparation of 2-amino-ethanol derivatives having a central analgesic activity and intermidiates thereof |
Aug. 25, 1992 |
| 5101045 |
Preparation of N-substituted pyrrolidones |
Mar. 31, 1992 |
| 5091567 |
Process for the preparation of 1-aminomethyl-1-cyclohexaneacetic acid |
Feb. 25, 1992 |
| 4904804 |
Preparation of 2-pyrrolidone |
Feb. 27, 1990 |
| 4885371 |
Process for the preparation of purified N-alkyl lactams |
Dec. 5, 1989 |
| 4824967 |
Process for the preparation of 2-pyrrolidone |
Apr. 25, 1989 |
| 4814464 |
Process for making N-alkylpyrrolidones |
Mar. 21, 1989 |
| 4780547 |
Process for the production of C.sub.1 -- to C.sub.6 -N-alkylpyrrolidones from succinic anhydride and/or C.sub.1 -- to C.sub.6 -N-alkylsuccinimides |
Oct. 25, 1988 |
| 4647661 |
Method of preparing .omega.-lactams, in particular caprolactam |
Mar. 3, 1987 |
| 4560760 |
Process for the preparation of a lactam |
Dec. 24, 1985 |
| 4515803 |
Substituted derivatives of octahydroindole-2-carboxylic acids |
May. 7, 1985 |
| 4420620 |
Preparation of 2-pyrrolidones |
Dec. 13, 1983 |
| 4356124 |
Process for the production of pyrrolidones |
Oct. 26, 1982 |
| 4178286 |
.beta.-Lactams, their production, intermediates thereto and derivatives thereof |
Dec. 11, 1979 |
| 4163743 |
Beta-lactams, their production from azetidine carboxylic acids, intermediates thereto and derivatives thereof |
Aug. 7, 1979 |
| 3975400 |
Method of continuously producing .gamma.-butyrolactams |
Aug. 17, 1976 |
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