Oxaziridine-Mediated Oxyamination of Indoles: An Approach to 3-Aminoindoles and Enantiomerically Enriched 3-Aminopyrroloindolines
作者:Tamas Benkovics、Ilia A. Guzei、Tehshik P. Yoon
DOI:10.1002/anie.201004635
日期:2010.11.22
A radical solution: A highly regioselective copper(II)‐catalyzed oxyamination of N‐acyl indoles with oxaziridines gave aminal products that could be converted in a single step into 3‐aminoindoles and 3‐aminopyrroloindolines (see scheme). When a chiral N‐acyl group was used, the core fragment of some architecturally fascinating pyrroloindoline alkaloids was formed with 91 % ee. Bs=benzenesulfonyl, Moc=methoxycarbonyl
Direct Bis-Alkyl Thiolation for Indoles with Sulfinothioates under Pummerer-Type Conditions
作者:Peng Qi、Fang Sun、Ning Chen、Hongguang Du
DOI:10.1021/acs.joc.1c02502
日期:2022.1.21
applications. This approach enabled double C–H thiolation at the C2 and C3 of the indole in one pot. The mechanism studies suggested the thiolation was realized through the sulfoxonium salt rather than sulfenylcarboxylate.
Electrochemically enabled functionalization of indoles or anilines for the synthesis of hexafluoroisopropoxy indole and aniline derivatives
作者:Zu-Yu Mo、Xin-Yu Wang、Yu-Zhen Zhang、Li Yang、Hai-Tao Tang、Ying-Ming Pan
DOI:10.1039/d0ob00157k
日期:——
electrochemically enabled site-selective functionalization of indole or aniline derivatives with hexafluoroisopropanol in the presence of tetrabutyl ammonium hexafluorophosphate as the redox catalyst and electrolyte was demonstrated in this work. Under mild electro-oxidation conditions, a series of hexafluoroisopropoxy indole and aniline derivatives with pharmacological activity were obtained. This conversion
Gold(I)-Catalyzed Selective Hydroarylation of Indoles with Haloalkynes
作者:Cunbo Wei、Jiawen Wu、Lizhu Zhang、Zhonghua Xia
DOI:10.1021/acs.orglett.2c01921
日期:2022.7.1
A highly regio- and stereoselective synthesis of a Z-alkenyl indole via the gold-catalyzed addition of an indole to a haloalkyne was developed. In the presence of gold catalyst SIPrAuCl and cocatalyst NaBARF, a broad range of indoles react with haloalkynes to afford Z-alkenyl indoles with high selectivity at room temperature. Computational studies suggest that the hydroarylation reaction takes place