16212-06-9Relevant articles and documents
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Smith,Davis
, p. 824,829 (1950)
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Facile method for solid-phase synthesis of vinyl sulfones using polystyrene-supported selenomethyl aryl sulfone
Sheng, Shou-Ri,Zhou, Wei,Zhong, Ming-Hua,Liu, Xiao-Ling,Chen, Hui-Zong
, p. 815 - 821 (2005)
Treatment of novel polystyrene-supported selenomethyl aryl sulfone with LDA followed by alkylation and oxidation elimination efficiently afforded vinyl sulfones in good yields and purities.
Intermolecular [2 + 2] Photocycloaddition of α,β-Unsaturated Sulfones: Catalyst-Free Reaction and Catalytic Variants
Jeremias, Noah,Mohr, Lisa-Marie,Bach, Thorsten
supporting information, p. 5674 - 5678 (2021/08/03)
2-Aryl-1-sulfonyl-substituted cyclobutanes were prepared in an intermolecular [2 + 2] photocycloaddition from various α,β-unsaturated sulfones and olefins upon irradiation at λ = 300 nm (26 examples, 60-99% yield). Lewis acids catalyzed the [2 + 2] photocycloaddition of 2-benzimidazolyl styryl sulfones. At short wavelengths, the latter substrates underwent C-S bond cleavage but AlBr3 (5 mol %) allowed for an intermolecular reaction with 2,3-dimethyl-2-butene at longer wavelengths. A chiral-at-metal Lewis acid (2 mol %) facilitated an enantioselective reaction (up to 77% ee).
Visible-Light-Induced Three-Component Intermolecular Trifluoromethyl-Alkenylation Reactions of Unactivated Alkenes
Guo, Yuan-Qiang,Wang, Kaihua,Wang, Ruiguo,Song, Hongjian,Liu, Yuxiu,Wang, Qingmin
supporting information, p. 1651 - 1655 (2021/02/12)
Herein, we describe a practical protocol for efficient, mild, visible-light-induced three-component intermolecular trifluoromethyl-alkenylation reactions of unactivated alkenes. The protocol has good functional group tolerance and a broad substrate scope. Using this protocol, we not only introduced a trifluoromethyl group into alkenes but also converted unactivated alkenes to styrene-based activated alkenes, in addition to accomplishing late-stage functionalization of pharmaceutical intermediates. (Figure presented.).