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Class Information
Number: 562/897
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Carboxylic acid anhydrides (i.e., compounds having the -c(=o)-o-c(=o)- group) > Processes of forming the -c(=o)-o-c(=o)- group > Carboxylic acid halide reactant
Description: Processes wherein a carboxylic acid halide is used as a reactant.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6903236 |
Process for producing fluorocarboxylic anhydride |
Jun. 7, 2005 |
| 6753431 |
Production of mixed acid anhydride and amide compound |
Jun. 22, 2004 |
| 6469206 |
Process for the preparation of triflic anhydride |
Oct. 22, 2002 |
| 6465685 |
Method for oxidation of xylene derivatives |
Oct. 15, 2002 |
| 5391796 |
Production of trifluorovinyl ethers |
Feb. 21, 1995 |
| 5292949 |
Process for the preparation of acid anhydrides |
Mar. 8, 1994 |
| 5113016 |
Manufacture of phthaloyl chlorides |
May. 12, 1992 |
| 4874558 |
Polymer catalyzed synthesis of acid anhydrides |
Oct. 17, 1989 |
| 4867916 |
Ester manufacture |
Sep. 19, 1989 |
| 4595541 |
Process for the preparation of trifluoroacetic anhydride |
Jun. 17, 1986 |
| 4562010 |
Process for the preparation of benzoic anhydride |
Dec. 31, 1985 |
| 4470932 |
Preparation of carboxylic acid anhydrides |
Sep. 11, 1984 |
| 4303594 |
Process for the production of isobutyric acid anhydride |
Dec. 1, 1981 |
| 4175094 |
Preparation of esters |
Nov. 20, 1979 |
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