Synthesis of pyrimidines from 2-trichloromethyl-4-dimethylamino-1,3-diaza-1,3-butadienes and electron deficient acetylenes
✍ Scribed by Angel Guzmán; Moisés Romero; Francisco X. Talamás; Joseph M. Muchowski
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- French
- Weight
- 204 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0040-4039
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✦ Synopsis
2-Trichloromethyl-4-dimethylamino-1,3-diaza-l,3-butadienes(3),prepared from trichlomacetamidme(1) and amide acetals 2, readily react with electron d&ie.nt acetylenes 4 to give 2-trichloromethylpyrimidines 5.
📜 SIMILAR VOLUMES
2en-1-ones 1-Heteroaroyl-1,3-butadienes a b s t r a c t Microwave-assisted [2+2] cycloaddition of (E)-3-dimethylamino-1-heteroaryl-prop-2-en-1-ones to dimethyl acetylenedicarboxylates gives (2E,3E)-dimethyl-2-[(dimethylamino)methylene]-3-(substituted)succinates in 8-91% yield. In the case of a 4,5-d
1997 carboxylic acid esters carboxylic acid esters (acyclic compounds) P 0360 ## 46 -095 Synthesis and Reactions of Some 4-Chloro-4-alkoxycarbonyl-1,2diaza-1, 3-butadienes. -A simple two-step preparation of the new title compounds (III), which prove to be stable, versatile and reactive nucleophil