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Indian Journal of Chemistry -Section B (IJC-B) >
IJC-B Vol.51B [2012] >
IJC-B Vol.51B(04) [April 2012] >
| Title: | Facile synthesis of various 4-carboxylic acid derivatives and their amide analogues of benzopyrans |
| Authors: | Tripathi, Anil K
Mukherjee, Debaraj
Koul, S
Taneja, Subhash C |
| Keywords: | Benzopyran
Chromakalim
Selenium Dioxide
Carboxylalkyl Amide |
| Issue Date: | Apr-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A series of
4-carboxyalkyl amide derivatives of benzopyrans 6a-d and 7a-d have been prepared in
40-64% overall yields. In the proposed synthetic strategy, the key intermediate
4-methyl substituted chroman 3 is
obtained by condensing substituted phenol and mesityl oxide in presence of PPA.
The required carboxylic acid function has been introduced at C-4 in benzopyran
ring through a novel route. |
| Page(s): | 605-610 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Source: | IJC-B Vol.51B(04) [April 2012]
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