Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/16581| Title: | On the synthesis of novel spiroglucosides and fused ring heterocycles from diethyl  -acetamido--bromomalonate |
| Authors: | Chande, Madhukar S Bhat, Udayashankar S |
| Issue Date: | Aug-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Diethyl -acetamido--bromomalonate
1 with thiocarbamides 2 and 4-substituted thiosemicarbazides 8 give 2-alkyllarylimino-5-amino-5-carbethoxy-4-oxo-(3H)-thiazoles 3 and 2-alkyllarylimino-6-amino-6-carbethoxy-5-oxo-(3H, 4H)-1,3,4-thiadiazines
9 respectively. Compounds 3 and 9 with arylisothiocyanate 4
afford spiro [4.4]nonane and spiro[5.4]decane derivatives. These spiroheterocycles
on reaction with 2,3,4,6-tetrabenzoyl--D-glucopyranosyl
bromide 6 give novel
spiroglucosides. Also compounds 3
and 9 with hydrazine hydrate give
fused pyrazolo[5,4-d]thiazole and
pyrazolo[5,4-e]thiadiazine derivatives
respectively. The characterisation of the products has been done on the basis
of spectral (IR, 1H NMR, and 13C NMR) data. |
| Page(s): | 932-937 |
| Appears in Collections: | IJC-B Vol.38B(08) [August 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 38B(8) 932-937.pdf | 1.15 MB | Adobe PDF | View/Open |
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