- A method for manufacturing the same and a new fluorocarbon deriv. triarylboron
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PROBLEM TO BE SOLVED: To provide a novel trichlorofluorocarbon derivative useful as a synthetic intermediate for pharmaceutical and agricultural chemicals and to provide its manufacturing method.SOLUTION: A trichlorofluorocarbon derivative represented by the general formula (1), where A represents a carbon atom or a nitrogen atom, Rrepresents a hydrogen atom, a methyl group, an ethyl group, a linear, branched or cyclic alkyl group having 3 to 10 carbon atoms, Rand Rrepresent condensed benzene rings or benzene rings into which substituents introduced when A is a carbon atom, Rrepresents a hydrogen atom and Rrepresents a hydrogen atom, a methyl group, an ethyl group, linear having 3 to 10 carbon atoms and the like, is obtained by reacting corresponding 2-position of trifluoromethanesulfonic acid ester with a base.
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Paragraph 0079; 0081; 0097-0099
(2018/08/25)
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- Regioselective synthesis of heteroaryl triflones by LDA (lithium diisopropylamide)-mediated anionic thia-Fries rearrangement
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Novel heteroaryl triflones including oxindole, pyrazolone, pyridine, and quinoline derivatives have been regioselectively synthesized by LDA-mediated thia-Fries rearrangement for the first time. These reactions are also the first examples of the application of anionic thia-Fries rearrangement in heteroaromatic compounds.
- Xu, Xiu-Hua,Wang, Xin,Liu, Guo-Kai,Tokunaga, Etsuko,Shibata, Norio
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p. 2544 - 2547
(2012/07/14)
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