Ethoxycarbonylmethylenetriphenylphosphorane in carbohydrate chemistry, part II: a short and efficient synthesis of (+)-goniofufurone
β Scribed by K.R.C. Prakash; S.Prahlada Rao
- Book ID
- 108372395
- Publisher
- Elsevier Science
- Year
- 1993
- Tongue
- French
- Weight
- 351 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0040-4020
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π SIMILAR VOLUMES
Carbohydrate exe 1,2-or&esters are obtained in good to excellent yields by treatingjiuanose andpyranose hemiacetalsfirst with 1.1 eq. I-chloro-2,N,N-trimethyl-propenylamine and then with the appropriate alcohols in the presence of NEg.
## Abstract The syntheses of 2,3βdihydroβ1,3,4βthiadiazoles and 1,3,4βthiadiazoles from 1,2β__O__βisopropylideneβΞ±βDβ__xylo__β1,5βpentadialdoβ1,4βfuranose thiosemicarbazone are described. The new compounds as well as the intermediate products are physically and spectroscopically characterized. We d