Magnesium promoted autocatalytic dehydrogenation of amine borane complexes: A reliable, non-cryogenic, scalable access to boronic acids
作者:Ludovic D. Marciasini、Jimmy Richard、Bastien Cacciuttolo、Guillaume Sartori、Melodie Birepinte、Laurent Chabaud、Sandra Pinet、Mathieu Pucheault
DOI:10.1016/j.tet.2018.11.036
日期:2019.1
access boronic acids. The intrinsic instability of magnesium aminoborohydride was tweaked into a tandem dehydrogenation borylation sequence. Proceeding via an autocatalytic cycle, amineborane dehydrogenation was induced by a variety of Grignard reagents. Overall, addition of the organomagnesium species onto specially designed dialkylamine-borane complexes led to a variety of boronic acids in high yields
New facile one-pot synthesis of S-alkyl thiolcarbamates from xanthogenate in water
作者:Milutin M. Milosavljević、Dušan Ž. Mijin、Smiljka S. Milisavljević、Nataša M. Elezović、Jelena K. Milanović
DOI:10.1007/s00706-013-1083-7
日期:2013.12
AbstractA simple and efficient one-potsynthesis was developed for the preparation of S-alkyl thiolcarbamates from xanthogenate without catalyst using water as a solvent. The water can be recycled after removal of the product. The significant features of this protocol are: operational simplicity, mild reaction conditions, recycling of solvent and high product yields. Starting basic alkyl xanthogenate
Synthesis of aryl/alkyl(2,2′-bis-3-methylindolyl)methanes and aryl(3,3′-bis indolyl)methanes promoted by secondary amine based ionic liquids and microwave irradiation
作者:Pranab J. Das、Jupitara Das
DOI:10.1016/j.tetlet.2012.06.106
日期:2012.8
Aryl/alkyl(2,2'-bis-3-methylindolyl)methanes and aryl(bis-3,3'-indolyl)methanes are synthesized in high yield using ionic liquids mediated by microwave. Reaction conditions and product recovery are simple and ionic liquids could be recycled. (C) 2012 Elsevier Ltd. All rights reserved.