A new facile method for the synthesis of 1-arylimidazole-5-carboxylates
โ Scribed by Bang-Chi Chen; Mark S Bednarz; Rulin Zhao; Joseph E Sundeen; Ping Chen; Zhongqi Shen; Amanda P Skoumbourdis; Joel C Barrish
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 139 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
No coin nor oath required. For personal study only.
โฆ Synopsis
A new facile method for the preparation of 1-arylimidazole-5-carboxylates was developed. The new method involved reaction of anilines and ethyl glyoxylate in methanol to give a-anilino-a-methoxyacetates followed by cyclization with TosMIC, aording 1-arylimidazole-5-carboxylates in two steps in 40ยฑ94% overall yields.
๐ SIMILAR VOLUMES
A new facile method for the preparation of trans-2-aryl-3,3-dimethylcyclopropane-1-carboxylic acids was developed. The new method involved [2+2]-cycloaddition of styrenes with N,N,2-trimethylpropionamide followed by bromination and rearrangement of the resulting 3-aryl-2,2-dimethylcyclobutanones, af
5%-O-Protected 5-methylcytidine 3 was oxidized with Na 2 S 2 O 8 to give a mixture of the corresponding 5-(hydroxymethyl)-and 5-formylcytidine derivatives, 4 and 5. The hydroxymethyl group of 4 was further oxidized to a formyl group by treatment with ceric(IV) ammonium nitrate (CAN). Alternatively,