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http://nopr.niscpr.res.in/handle/123456789/16638| Title: | Phase transfer catalysis by tetraethylammonium bromide: Nucleophilic opening of anhydrides using potassium superoxide in aprotic medium |
| Authors: | Singh, Sundaram Shukla, Ajay Kumar Singh, Krishna Nand |
| Issue Date: | Oct-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Tetraethylammonium superoxide, generated in situ by the phase transfer reaction of potassium superoxide and tetraethylammonium bromide, brings about a clean cleavage of various anhydrides. particularly those with high molecular weight in dry dimethylformamide. As an outcome, succinic anhydride 1; glutaric anhydride 2; 3;3-dimethylglutaric anhydride 3;phthalic anhydride 4; diphenic anhydride 5; 1,2,3,4-tetrahydro-9-oxo-1 ,4-ethanonaphthalene-2,3-endo-dicarboxylic anhydride 6; 1,4,5,6,7,7-hexachloro-5-norbornene-2,3-dicarboxylic anhydride 7; endo-bicyclo [2.2.1] heptan-2-one-5,6- dicarboxylic anhydride 8: cis-5 -norbornene-endo-2,3-dicarboxylic anhydride 9 and trans-1,2-cyclohexane dicarboxylic anhydride 10 have been transformed into their corresponding dicarboxylic acids in fairly good yields. The report demonstrates the applicability of tetraethylammonium bromide as a phase transfer catalyst for efficient superoxide studies |
| Page(s): | 1184-1188 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.38B(10) [October 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 38B(10) 1184-1188.pdf | 1.02 MB | Adobe PDF | View/Open |
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