1,3-Dibromo-5,5-dimethylhydantoin as a New Imidazolidine Dehydrogenating Agent: Synthesis of 4,5-Dihydro-1H-imidazolium Salts
✍ Scribed by Salerno, Alejandra; C. Caterina, Mar誕; A. Figueroa, Mar誕; A. Perillo, Isabel
- Book ID
- 126801990
- Publisher
- Japan Institute of Heterocyclic Chemistry
- Year
- 2006
- Tongue
- English
- Weight
- 366 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0385-5414
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📜 SIMILAR VOLUMES
## Abstract Efficient syntheses of 3,4-dihydropyrimidin-2-(1H)-ones and the corresponding thioxo derivatives using 1,3-dibromo-5,5-dimethylhydantoin (DBH) catalysis of a one-pot three-component Biginelli reaction of aldehydes, ethyl acetoacetate, and urea or thiourea under microwave irradiation are
In a previous paper') we described the generation of o-lithiomethylphenyl isocyanide, which was a versatile reagent for syntheses of indole derivatives. Herein, we wish to report an elaboration of the lithiomethylphenyl isocyanide to lead to heterocycles such as 4,5-dihydro-3,1-benzoxazepine ~~ and