Cyclohexene-4-carbaldehyde in the Synthesis of 4-(Cyclohex-3-enyl)-Substituted 4H-Chromenes, 4H-Thiopyrans, 1,4,5,6,7,8-Hexahydroquinolines, 1,4-Dihydropyridines, Pyridines, and 6,7-Dihydro-5H-[1]pyrindines
β Scribed by V. D. Dyachenko
- Publisher
- Springer
- Year
- 2005
- Tongue
- English
- Weight
- 112 KB
- Volume
- 75
- Category
- Article
- ISSN
- 1070-3632
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π SIMILAR VOLUMES
The reaction of 3-mercapto-4-aryIideneamino-l,2,4triazoles 2b-d, 3a-d with ethyl bromoacetate and/or phenacyl bromide in hot DMF and triethylamine affords the stereochemically pure 7-acyl-6-aryl-6,7dihydro-5H-lt2, 4-triazolo[3,4-b][l, 3,4]thiadiazines
## Abstract A new method was developed for the synthesis of 6,7βdihydroβ5__H__βpyrimido[4,5β__e__][1,4]diazepinβ8(9__H__)βone derivatives. The key to construct the pyrimido[4,5β__e__][1,4]diazepine core is the intramolecular amidation of __N__β((4βaminoβ6βchloropyrimidinβ5βyl)methyl)βsubstituted am