Cynogen bromide and ethylacetoacetate in heterocyclization: Novel synthesis of tetracyclic derivative of 3-aryl quinazolinones
作者:M. B. Deshmukh、Suresh S. Patil、Sanjeevani S. Patil、Swati D. Jadhav
DOI:10.1002/jhet.440
日期:——
ne 3 was synthesized by treatment of 2‐hydrazinyl‐3‐(substituted phenyl)quinazolin‐4(3H)‐one 2 with cyanogen bromide, which on cyclization with ethylacetoacetate to get the targeted fused tetracyclicderivatives of quinazoli‐4(3H)one 4. The synthesized compounds have been characterized using IR and 1H NMR, mass spectral data together with elemental analysis. J. Heterocyclic Chem., (2010).
在这项工作中,三环1-氨基-4-(取代的苯基) - [1,2,4]三唑并[4,3一]喹唑啉-5(4 ħ) -酮3用处理2-肼基3的合成-(取代的苯基)喹唑啉-4(3 H)-one 2与溴化氰一起用乙酰乙酸乙酯将其环化,得到目标稠合的喹唑啉-4(3H)one 4稠合四环衍生物。合成的化合物已使用IR和1 H NMR,质谱数据以及元素分析进行了表征。J.杂环化学。(2010)。