AbstractรWe found that N-unsubstituted hydrazones of aromatic aldehydes can be easily converted to the corresponding 1,1-dichlorostyrenes in the reaction with carbon tetrachloride using copper (I) chloride as catalyst. Factors affecting the route of the reaction and yields of the products were inves
A model study for a novel synthetic approach to 2-carboxyinosines
โ Scribed by Vasanthakumar Rajappan; Ramachandra S Hosmane
- Book ID
- 104211272
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 87 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
A model study for a novel approach to the synthesis of 2-carboxyinosines has been described. The synthesis of 9-benzyl-2-carboxyhypoxanthine (I), a model for 2-carboxyinosine, was achieved in four steps starting from 1-benzyl-5-nitroimidazole-4-carboxylic acid. Also reported is the synthesis of 9-benzyl-2,2bis(ethoxycarbonyl)hypoxanthine (II).
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## Abstract (ยฑ)โDesoxynoreseroline (**3**), the basic ring structure of the pharmacologically active alkaloid physostigmine (**1**), was synthesized starting from 3โallylโ1,3โdimethyloxindole (**9**). The latter was prepared from the corresponding 2__H__โazirinโ3โamine **6** by a BF~3~โcatalyzed ri