Studies with enaminonitriles: Synthesis and chemical reactivity of 2‐phenyl‐3‐piperidin‐1‐yl acrylonitrile under microwave heating
作者:Abdellatif M. Salaheldin、Maryana K. Alphy
DOI:10.1002/jhet.5570450202
日期:2008.3
Benzyl cyanide reacts with triethylorthoformate and piperidine in DMF solution to yield the title compound 2. This reacted with aromatic amines to yield either aminoacrylonitriles or quinoline depending on reaction conditions and substitution pattern on the aromatic amine. The reaction of compound 2 with hydrazine hydrate could only be effected in the microwave oven and resulted in the formation of
苄基氰化物在DMF溶液中与原甲酸三乙酯和哌啶反应生成标题化合物2。根据芳族胺的反应条件和取代方式,它与芳族胺反应生成氨基丙烯腈或喹啉。化合物2与水合肼的反应只能在微波炉中进行,导致氨基吡唑7的形成。7的重氮化并与活性亚甲基试剂偶合,得到吡唑并[5,1- c ]-[1,2,4]三嗪衍生物。
Development of 7-Aminopyrazolo[1,5-<i>a</i>]pyrimidines as Anti-Candida and Antibacterial Agents
(2021). Development of 7-Aminopyrazolo[1,5-a]pyrimidines as Anti-Candida and AntibacterialAgents. Organic Preparations and Procedures International: Vol. 53, No. 1, pp. 42-51.
2H-Pyrazol-3-ylamines as precursors for the synthesis of polyfunctionally substituted pyrazolo[1,5-a]pyrimidines
作者:Hany Fakhry Anwar、Daisy Hanna Fleita、Heinz Kolshorn、Herbert Meier、Mohamed Hilmy Elnagdi
DOI:10.3998/ark.5550190.0007.f16
日期:——
Substituted aminopyrazoles (5a-d) were synthesized and reacted with bidentate electrophiles to afford pyrazolo[1,5-a]pyrimidines. The regioorientation of reagents has been determined by (N, H) HMBC measurements as well as an X-ray crystal structure determination.