Synthesis and initial thermal behavior investigation of 2-alkenyl substituted pyrazine N-oxides
作者:Ke Zhai、Miao Lai、Zhiyong Wu、Mingqin Zhao、Yanqiu Jing、Pengfei Liu
DOI:10.1016/j.catcom.2018.07.017
日期:2018.11
The systematic syntheses of 2-alkenylpyrazine N-oxides through palladium-catalyzed C-2 selective CH olefination reaction was disclosed. Various acrylateesters substituted pyrazine N-oxides were obtained in up to 93% yields. Thermogravimetric analysis indicated that the fracture temperature of particular compound 3 f was about 267 °C. The pyrolysis of compound 3 f could generate several aroma compounds