Direct N-gem-difluorocyclopropylation of nitro-heterocycles by utilizing gem-difluorocyclopropyl tosylate
摘要:
We have developed an efficient method to achieve N-gem-difluorocyclopropylation of N-heterocycles with the use of gem-difluorocyclopropyl tosylate as a building block under mild conditions. gem-Difluorocyclopropyl tosylates could be easily prepared on a large scale and exhibit great stability. (C) 2013 Ji-Chang Xiao. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.
Process for preparing vinyl substituted beta-diketones
申请人:Southard E. Glen
公开号:US20060069288A1
公开(公告)日:2006-03-30
A process for preparing vinyl substituted beta-diketones includes reacting a halogen-containing beta-diketone with an olefin in a reaction zone under Heck coupling reaction conditions in the presence of a catalyst, a base, and an organic phosphine to provide a vinyl substituted beta-diketone product.
Radical-Mediated Synthesis of α-<i>C</i>-Glycosides Based on <i>N</i>-Acyl Galactosamine
作者:Raul SanMartin、Bahareh Tavassoli、Kenneth E. Walsh、Daryl S. Walter、Timothy Gallagher
DOI:10.1021/ol006682c
日期:2000.12.1
[structure] C-Glycosides of N-acyl 2-amino-2-deoxygalactose (acyl = MeCO, CF(3)CO, t-BuOCO) are available in a stereoselective manner by trapping of an anomeric radical with an activated alkene. Using anomeric selenides, radicalgeneration and trapping is carried out under conditions that avoid competitive reduction, and this chemistry has been applied to the synthesis of the novel C-glycoside analogue
Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same
申请人:SK Innovation Co., Ltd.
公开号:US20200185774A1
公开(公告)日:2020-06-11
Provided are an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a difluorophosphite olefin compound, and a lithium secondary battery including the same.