Palladium-Catalyzed Denitrogenation Reaction of 1,2,3-Benzotriazin-4(3<i>H</i>)-ones Incorporating Isocyanides
作者:Tomoya Miura、Yui Nishida、Masao Morimoto、Motoshi Yamauchi、Masahiro Murakami
DOI:10.1021/ol103143a
日期:2011.3.18
1,2,3-Benzotriazin-4(3H)-ones and 1,2,3,4-benzothiatriazine 1,1(2H)-dioxide reacted with isocyanides in the presence of a palladium catalyst to give 3-(imino)isoindolin-1-ones and 3-(imino)thiaisoindoline 1,1-dioxides, respectively, in high yield. An intermediate azapalladacycle was generated through denitrogenation of the triazine moiety, and an isocyanide was incorporated therein.
1,2,3-Benzotriazin-4(3 H)-ones和1,2,3,4-benzothiatriazine 1,1(2 H)-dioxide在钯催化剂存在下与异氰酸酯反应生成3-(亚氨基)分别以高收率获得)异吲哚啉-1-酮和3-(亚氨基)硫代异吲哚啉1,1-二氧化物。通过三嗪部分的脱氮产生中间体氮杂四环,并在其中掺入异氰化物。