Rapid synthesis of indole cis-enamides via hydroamidation of indolic alkynes
摘要:
The synthesis of indolic cis-enamides using a ruthenium-mediated hydroamidation of indole alkynes with primary oxalamides or alpha-keto amides is reported. Using this method the total synthesis of igzamide and Z-coscinamides A and B has been achieved. (C) 2013 Elsevier Ltd. All rights reserved.
yielding, operationally simple (room temperature, no dry solvents or inert conditions, commercially available catalyst) reaction for the introduction of silylacetylenes on a large range of indole and pyrroleheterocycles with a wide range of functional groups (see scheme).
Mechanochemical Rhodium(III)‐ and Gold(I)‐Catalyzed C−H Bond Alkynylations of Indoles under Solventless Conditions in Mixer Mills
作者:Gary N. Hermann、Marvin T. Unruh、Se‐Hyeong Jung、Maik Krings、Carsten Bolm
DOI:10.1002/anie.201805778
日期:2018.8.13
processes show excellent functional group tolerance, do not require additional heating and proceed undersolventlessconditions. Compared to solvent‐based standard protocols, the reaction times are shorter and the catalyst quantities lower resulting in high product yields under ambient atmosphere in mixer mills.
Rapid synthesis of indole cis-enamides via hydroamidation of indolic alkynes
作者:Emma Dickson、Brent R. Copp、David Barker
DOI:10.1016/j.tetlet.2013.07.081
日期:2013.9
The synthesis of indolic cis-enamides using a ruthenium-mediated hydroamidation of indole alkynes with primary oxalamides or alpha-keto amides is reported. Using this method the total synthesis of igzamide and Z-coscinamides A and B has been achieved. (C) 2013 Elsevier Ltd. All rights reserved.