报道了N-烯丙基吲哚-2-甲醛和N-烯丙基吡咯-2-甲醛的催化对映选择性加氢酰化。与形成六元环的许多烯烃加氢酰化相反,这些环化过程是在不存在稳定酰基铑(III)氢化物中间体的辅助官能团的情况下发生的。分子内加氢酰化反应以中等至高产率生成具有优异对映选择性的7,8-二氢吡啶并[1,2- a ]吲哚-9(6 H )-酮和 6,7-二氢吲哚嗪-8(5 H )-酮。
Synthesis and reactions of new 2-hydroxymethyldimethoxyindoles
作者:Murat Bingul、Naresh Kumar、David StC. Black
DOI:10.1016/j.tet.2015.11.038
日期:2016.1
to prepare a range of 2-hydroxymethyldimethoxyindole derivatives from the relatedmethyl esters. Acid-catalysed reactions of these indole-2-methanols yielded indolo-cyclotriveratrylenes linked through C-2 and C-3. The related indole-2-carbaldehydes were prepared via oxidation of the indole-2-methanols in the presence of manganese dioxide. Vilsmeier formylation was explored to prepare new formylated