6-dihydro-2H-1,3-oxazines have been obtained by reacting substituted vinyl azides with a combination of Togni’s reagent and substoichiometric amounts of iron(II) chloride. The results of density functional theory calculations support the proposed mechanism involving 1,n-hydrogen-atom transfer reactions.
通过使取代的
乙烯基叠氮化物与Togni试剂和亚
化学计量的三
氯甲烷组合反应,可以得到
2,2,2-三氟乙基取代的3-
恶唑啉,3-
噻唑啉和5,6-二氢-2 H -1,3-恶嗪。
氯化
铁(II)。密度泛函理论计算的结果支持了所提出的涉及1,n-氢原子转移反应的机理。