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1 article(s) from Li, Lingchun

Deoxygenative gem-difluoroolefination of carbonyl compounds with (chlorodifluoromethyl)trimethylsilane and triphenylphosphine

Fei Wang,
Lingchun Li,
Chuanfa Ni and
Jinbo Hu

Beilstein J. Org. Chem. 2014, 10, 344–351, doi:10.3762/bjoc.10.32

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Scheme 1: Various procedures for the generation of difluoromethylene phosphonium ylide [19-25].

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Scheme 2: Difluoromethylenation of alkenes and alkynes and difluoromethylation of heteroatom nucleophiles wit...

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Scheme 3: Bromo–chloro exchange reaction using AgCl.

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Scheme 4: Proposed different reaction pathways of the difluorinated ylide in the presence of TMSCl and TMSBr.

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Figure 1: gem-Difluoroolefination of aldehydes. Reactions were performed on 0.5 mmol scale in a pressure tube...

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Figure 2: gem-Difluoroolefination of activated ketones. Reactions were performed on 0.5 mmol scale in a press...

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Scheme 5: Plausible mechanisms for the formation of difluoromethylene triphenylphosphonium ylide from TMSCF₂C...

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Published 06 Feb 2014

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