Iodine-Induced Regioselective C−C and C−N Bonds Formation of N-Protected Indoles
摘要:
A mild, metal-free, and environmently benign iodine-promoted regioselective C-C and C-N bonds formation of N-protected indole derivatives giving 2,3'-biindoles 2 and 4-(1H-indol-2-yl)morpholines 4 is successfully demonstrated. Various bioactive 2,3'-biindoles and 4-(1H-indol-2-yl)morpholines, bearing electron-rich to moderately electron-poor substituents, can be prepared in moderate to good yields.
A novel synthetic use of trialkyl(indol-2-yl)borate for a “one-pot” synthesis of [a]-annelated indoles
作者:Minoru Ishikura、Masanao Terashima
DOI:10.1016/s0040-4039(00)61792-6
日期:1992.11
A novel one-pot procedure for [a]-annelated indole via cyclic trialkyl(indol-2-yl)borate is described.
描述了通过环状三烷基(吲哚-2-基)硼酸酯用于[ α ]-退火的吲哚的新颖的一锅法。
Regioselective Rh-catalyzed direct carbonylation of indoles to synthesize indole-3-carboxylates
作者:Rui Lang、Junliang Wu、Lijun Shi、Chungu Xia、Fuwei Li
DOI:10.1039/c1cc15143f
日期:——
Rh-catalyzed C–H carbonylation of indoles under 1 atm of CO has been achieved. Various substituted indoles and indole with free N–H could be carboxylated with linear- and/or cyclic-alcohol to give the desired indole-3-carboxylates with up to 92% yield. A mechanism involving RhIII initiated C–H metallation is proposed.
Creation of molecular complexities via a new Cu-catalyzed cascade reaction: a direct access to novel 2,2′-spirobiindole derivatives
作者:Bagineni Prasad、Raju Adepu、Atul Kumar Sharma、Manojit Pal
DOI:10.1039/c4cc08911a
日期:——
A Cu-mediated cascade reaction of cyclopenta[b]indoles furnished an array of 2,2′-spirobi[indolin]-3-one based novel and complex molecules.
一种铜介导的环戊[b]吲哚级联反应提供了一系列基于2,2′-螺环吲哚啉-3-酮的新颖和复杂分子。
Silver-catalyzed synthesis of 4-substituted benzofurans<i>via</i> a cascade oxidative coupling-annulation protocol
作者:Yang Ye、Renhua Fan
DOI:10.1039/c1cc10137d
日期:——
A facile synthesis of 4-indole benzofurans via an oxidative dearomatization, a silver-catalyzed cascade Michael addition-annulation, and an aromatization is reported.
通过氧化脱芳构建的银催化级联迈克尔加成-环化和芳香化,报告了一种简便的4-吲哚苯并呋喃合成。
Palladium-catalyzed mono- and double-carbonylation of indoles with amines controllably leading to amides and α-ketoamides
作者:Qi Xing、Lijun Shi、Rui Lang、Chungu Xia、Fuwei Li
DOI:10.1039/c2cc36341k
日期:——
A novel and efficient double-carbonylation of indoles with primary or secondary amines to yield indole-3-α-ketoamides has been developed and bioactive molecules could be one-pot synthesized using the current methodology, which could also be selectively switched to mono-carbonylation to afford indole-3-amides only by a slight modification of reaction conditions.