Thermal functionalisation of nitrogen substituents: formation of dihydropyrrol-3-ones, quinolin-4-ones, and enaminoenaminones by gas-phase hydrogen transfer reactions
作者:Helen J. Gordon、Jane C. Martin、Hamish McNab
DOI:10.1039/c39830000957
日期:——
(5-aminomethylene-2,2-dimethyl-1,3-dioxane-4,6-dione)(1), (7), (11), and (12) causes hydrogen transfer reactions which result in specific functionalisation of the amino substituent: tertiary amino substrates give 1,2-dihydropyrrol-3-ones (60%) by ring closure, while secondary amino substrates give quinolin-4-ones (90%) or enaminoenaminones (90%).
氨基亚甲基Meldrum的酸衍生物(5-氨基亚甲基-2,2-二甲基-1,3-二恶烷-4,6-二酮)的热解(1),(7),(11)和(12)引起氢转移反应会导致氨基取代基的特定功能化:叔氨基底物通过闭环生成1,2-二氢吡咯-3-酮(60%),而仲氨基底物生成喹啉-4-酮(90%)或烯胺基氨基酮(90%) )。