A novel and efficient synthesis of tetrahydropyridine-, dihydropyrrole-, and tetrahydroazepine-3-carboxylates via cascade reactions of cyclic amines with CO and alcohols is presented. To our knowledge, this should be the first example in which functionalized N-heterocycles were prepared through Pd-catalyzed C(sp³)-H dehydrogenation and C(sp²)-H carbonylation of cyclic amines.

中文翻译：

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灭活的环胺向官能化的N-杂环的C（sp3）-H脱氢和C（sp2）-H烷氧基羰基化

通过环胺与CO和醇的级联反应，提出了一种新颖而有效的四氢吡啶-，二氢吡咯-和四氢氮杂-3-羧酸酯的合成方法。据我们所知，这应该是第一个通过钯催化环胺的C（sp ³）-H脱氢和C（sp ²）-H羰基化制备N杂环的例子。