One‐Pot Two‐Step Double Annulation of
<i>N</i>
‐Methoxybenzamides with Alkynes and Alkenes: Regioselective Construction of Isoindolo[2,1‐
<i>b</i>
]isoquinolin‐5(7
<i>H</i>
)‐ones
one-pot two-step doubleannulation strategy to produce isoindolo[2,1-b]isoquinolin-5(7H)-ones via the reaction of N-methoxybenzamides with symmetrical/unsymmetrical alkynes and alkenes has been developed, which proceeds through Ru-catalysed unsymmetrical doubleannulations using a single DG under single catalytic conditions. Furthermore, we have developed amide-alkyne regioselective annulations using unsymmetrical
的单釜两步双环策略以产生异吲哚基[2,1- b ]异喹啉-5(7 ħ) -酮通过的反应Ñ -methoxybenzamides具有对称/不对称炔烃及烯烃已经被开发,其通过进行在单一催化条件下使用单一 DG 进行 Ru 催化的不对称双环化。此外,我们使用不对称的内部炔烃开发了酰胺-炔烃区域选择性环化,该炔烃具有导致单一异构体的氧/氮取代基。所开发的程序提供了广泛的底物范围,容忍了广泛的官能团,并提供了良好的产品收率。
Silver-catalyzed acylative annulation of <i>N</i>-propargylated indoles with α-keto acids: access to acylated pyrrolo[1,2-<i>a</i>]indoles
A novel carbon-centered radical cyclization of N-propargyl indoles with α-keto acids to form acylated pyrrolo[1,2-a]indoles involving difunctionalisation of the alkyne moiety with concomitant annulation is disclosed.