Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 51856-79-2, is researched, SMILESS is O=C(OC)CC1=CC=CN1C, Molecular C8H11NO2Journal, Article, Research Support, Non-U.S. Gov’t, Organic Letters called Visible Light-Mediated C-H Difluoromethylation of Electron-Rich Heteroarenes, Author is Su, Yi-Ming; Hou, Yu; Yin, Feng; Xu, Yue-Ming; Li, Yan; Zheng, Xiaoqi; Wang, Xi-Sheng, the main research direction is phenylsulfonyldifluoromethyl pyrrole indole furan thiophene heterocycle regioselective preparation; difluoromethyl heterocycle regioselective preparation; visible light photochem phenylsulfonyldifluoromethylation electron rich heterocycle ruthenium catalyst; desulfonylation phenylsulfonyldifluoromethyl heterocycle; regioselective photochem phenylsulfonyldifluoromethylation electron rich heterocycle; mechanism photochem phenylsulfonyldifluoromethylation heterocycle electrophilic radical.Safety of Methyl 2-(1-methyl-1H-pyrrol-2-yl)acetate.
In the presence of tris(2,2′-bipyridinyl)ruthenium(II) dichloride, electron-rich heteroarenes such as pyrroles, indoles, furans, and thiophenes underwent regioselective visible-light photochem. (phenylsulfonyl)difluoromethylation with PhSO2CF2I mediated by dipotassium hydrogen phosphate in CH2Cl2; desulfonylation with magnesium yielded the corresponding difluoromethylated products for nine of the (phenylsulfonyl)difluoromethylated products. Attempted (phenylsulfonyl)difluoromethylation of N-methylpyrrole in the presence of TEMPO, the exclusive formation of cyclization and ring-opening (phenylsulfonyl)difluoromethylated products derived from diallyl ether and (S)-(-)-β-pinene, resp., and the chemoselectivity of the (phenylsulfonyl)difluoromethylation were consistent with an electrophilic radical-mediated mechanism for the photochem. (phenylsulfonyl)difluoromethylation.
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Reference:
Tetrahydrofuran – Wikipedia,
Tetrahydrofuran | (CH2)3CH2O – PubChem