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http://nopr.niscpr.res.in/handle/123456789/21817| Title: | Chemical transformations on 6-aryl-3-cyano-4-methylthio-pyran-2(H)-ones: Synthetic and structural studies on novel N-phenylpyrazoles and N-phenylpyrazolylcoumarins |
| Authors: | Kumar, Ajay Malhotra, Sanjay Vats, Archana Himanshu Singh, Sanjay K Sharma, Sunil K Prasad, Ashok K Errington, William Olsen, Carl E Jain, Subhash C Parmar, Virinder S |
| Issue Date: | Feb-2002 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Seven 6-aryl-3-cyano-4-methylthiopyran-2(H)-ones 1-7 have been prepared and used for the efficient synthesis of twelve 1,3-diaryl-5-cyanomethylpyrazoles 8-19, one 3-cyanomethyl-5-(3,4-methylenedioxyphenyl)pyrazole 22 and one 5-cyanomethyl-3-phenylisoxazole 23. Further, two 1,3-diaryl -5-cyanomethylpyrazoles 10 and 11 have been used for the preparation of three novel N-phenylpyrazolylcoumarins 24-26. Structures of 3-cyano-6-(3,4-methylenedioxyphenyl)-4-methylthiopyran-2(H)-one 7, 3-cyanomethyl-5-(3,4-methylenedioxyphenyl)pyrazole 22 and 5-cyanomethyl-3-phenylisoxazole 23 have been confirmed by their X-ray crystallographic studies. |
| Page(s): | 360-367 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.41B(02) [February 2002] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 41B(2) 360-367.pdf | 1.98 MB | Adobe PDF | View/Open |
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