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Class Information
Number: 548/522
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.) > Additional hetero ring, which is attached directly or indirectly to the five-membered hetero ring by nonionic bonding > The additional hetero ring also contains nitrogen > Ring carbon of each of the two nitrogen containing hetero rings is bonded directly to chalcogen (e.g., both rings may be bonded to the same oxygen atom or to different oxygen atoms, etc.) > Plural chalcogens bonded directly to ring carbons of each of the two nitrogen containing hetero rings (e.g., bis-succinimides, etc.) > Double bond between ring carbons in each of the two nitrogen containing hetero rings (e.g., bis-maleimides, etc.) > Processes
Description: Processes for preparing the compound, or for separating the compound from impurities or from the reaction mixture.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6960667 |
Fluorescent maleimides and uses thereof |
Nov. 1, 2005 |
| 6528535 |
Bicyclic inhibitors of protein farnesyl transferase |
Mar. 4, 2003 |
| 5994561 |
Process for the preparation of aromatic maleimides |
Nov. 30, 1999 |
| 5919923 |
Meso-substituted tripyrrane compounds, compositions, and methods for making and using the same |
Jul. 6, 1999 |
| 5849932 |
Bismaleimide compound and process for producing the same |
Dec. 15, 1998 |
| 5371236 |
Non-crystalline ether-imide type high purity bismaleimide composition and process for producing the same |
Dec. 6, 1994 |
| 5306828 |
Process for the manufacture of substituted maleimides |
Apr. 26, 1994 |
| 5302723 |
Process for preparing flame retardant bisimide compositions |
Apr. 12, 1994 |
| 5286874 |
Process for the production of bismaleinimide derivatives |
Feb. 15, 1994 |
| 5286873 |
Succinimide derivatives and processes for their preparation |
Feb. 15, 1994 |
| 5160642 |
Polyimide quaternary salts as clay stabilization agents |
Nov. 3, 1992 |
| 5145984 |
Bis-succinimide derivatives |
Sep. 8, 1992 |
| 5110986 |
Synthesis of N-t-alkyl-1,2-diacylhydrazines |
May. 5, 1992 |
| 5013848 |
Aromatic bismaleimide derivatives and process for preparing same |
May. 7, 1991 |
| 4985568 |
Method of making crosslinking imidophenylamines |
Jan. 15, 1991 |
| 4945170 |
Method for making polyimides and products produced thereby |
Jul. 31, 1990 |
| 4945169 |
Novel bis-maleimide compounds containing sulfonate linkages |
Jul. 31, 1990 |
| 4904801 |
Process for the preparation of aromatic ether bismaleimides |
Feb. 27, 1990 |
| 4876358 |
Oxyethylene bismaleimide derivatives |
Oct. 24, 1989 |
| 4866185 |
Difunctional polyfluoroaromatic derivatives and a process of preparing the same |
Sep. 12, 1989 |
| 4855450 |
Process for the preparation of aromatic ether bismaleimides |
Aug. 8, 1989 |
| 4808646 |
Maleimide-maleamic acid resin solution |
Feb. 28, 1989 |
| 4778900 |
Bis-N-succinimidyl methylamino aromatic compounds |
Oct. 18, 1988 |
| H424 |
Method of synthesizing the bismaleimide of dimer diamine via cyclodehydration |
Feb. 2, 1988 |
| 4629798 |
Electrically conductive pyrrole polymers and process of preparing the same |
Dec. 16, 1986 |
| 4500719 |
Process for the preparation of N-alkenylphenylmaleimides and N,N'-[alkenylenephenylene]bismalemides |
Feb. 19, 1985 |
| 4330471 |
Process for the preparation of alkylene polyamine derivatives of polyalkenyl-substituted succinic anhydride |
May. 18, 1982 |
| 4296219 |
Bismide-ether compounds, compositions thereof, and method of producing same |
Oct. 20, 1981 |
| 4238394 |
Method for making diaryliodonium salts |
Dec. 9, 1980 |
| 4235731 |
Modified terpolymer dispersant - VI improver |
Nov. 25, 1980 |
| 4229351 |
Process for producing aliphatically N-substituted maleimides |
Oct. 21, 1980 |
| 4226776 |
Preparation of arylene-bis-maleimides |
Oct. 7, 1980 |
| 4225498 |
Preparation of N-substituted oligo-imides |
Sep. 30, 1980 |
| 4225497 |
Preparation of N-substituted oligo-imides |
Sep. 30, 1980 |
| 4215046 |
Room temperature cured elastomer |
Jul. 29, 1980 |
| 4179444 |
Process for the manufacture of iso-imides or mixtures of iso-imides and imides |
Dec. 18, 1979 |
| 4178280 |
Stabilized polyolefin composition |
Dec. 11, 1979 |
| 4154737 |
Preparation of maleimides and dimaleimides |
May. 15, 1979 |
| 4151175 |
Method for making diarylhalonium salts |
Apr. 24, 1979 |
| 4138406 |
Manufacture of maleimides via cyclizing dehydration |
Feb. 6, 1979 |
| 4132716 |
Imidyl-benzene-dicarboxylic and -tricarboxylic acid derivatives |
Jan. 2, 1979 |
| 4132715 |
Process for the production of maleimides |
Jan. 2, 1979 |
| 4130564 |
Process for the manufacture of maleimides |
Dec. 19, 1978 |
| 4122076 |
Process of preparing maleimides |
Oct. 24, 1978 |
| 4113737 |
Polyamines with imide groups |
Sep. 12, 1978 |
| 4107174 |
Imidyl compounds |
Aug. 15, 1978 |
| T971003 |
Synthesis of dimaleimides |
Jun. 6, 1978 |
| 4046777 |
Fluorine substituted maleimides |
Sep. 6, 1977 |
| 3975401 |
Process for the dehydration of bis-maleamic acids |
Aug. 17, 1976 |
| 3960887 |
Continuous process for the preparation of maleimides |
Jun. 1, 1976 |
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