A one-pot, regioselective decarboxylative alkynylation of tetrahydro-β-carboline-1-carboxylic acid under peroxide-free condition is reported. The reaction is highly selective for the 1-position over the 3-position of tetrahydro-β-carboline. The reaction can afford alkynylated or enaminone products depending on the reagent. The reaction proceeds through sequential decarboxylative iminium ion formation
报道了在无过氧化物条件下四氢-β-咔啉-1-
羧酸的一锅、区域选择性脱羧炔基化。该反应对四氢-β-咔啉的 1 位比 3 位具有高度选择性。根据试剂的不同,该反应可以提供炔基化或烯胺酮产物。该反应通过顺序脱羧
亚胺离子形成,然后是炔基化和氧化重排级联进行。