32353-96-1Relevant academic research and scientific papers
A practical synthesis of functionalized isoindolinones via [3?+?3] benzannulation of 1,3-bissulfonylpropenes and 4-arylmethylene-2,3-dioxopyrrolidines
Tang, Xiang-zheng,zhou, Jing-xuan,Liang, Hua-ju,Zhang, Xue-jing,Yan, Ming,Chan, Albert S.C.
, p. 147 - 149 (2018/12/11)
A straightforward synthesis of isoindolinones has been developed via a [3 + 3] benzannulation of 4-arylmethylene-2,3-dioxopyrrolidines and 1,3-bissulfonylpropenes (or 4-sulfonylcrotonates). A series of functionalized isoindolinones were obtained in excellent yields. The reaction could be carried out under mild conditions without transition metal catalyst. The finding provides a practical approach for the preparation of isoindolinone derivatives with potential biological activities.
Facile synthesis of substituted diaryl sulfones: Via a [3 + 3] benzannulation strategy
Tang, Xiang-Zheng,Tong, Lang,Liang, Hua-Ju,Liang, Jie,Zou, Yong,Zhang, Xue-Jing,Yan, Ming,Chan, Albert S. C.
, p. 3560 - 3563 (2018/05/26)
A base-mediated [3 + 3] benzannulation strategy for the conversion of 1,3-bis(sulfonyl)propenes and β,γ-unsaturated α-ketoesters to diaryl sulfones has been developed. This method provides facile, metal-free and efficient access to highly substituted diaryl sulfones in good to excellent yields. In addition, the sulfonyl group could be easily removed or converted to other functional groups via an organostannane intermediate.
Direct N-H/α,α,β,β-C(sp3)-H functionalization of piperidine via an azomethine ylide route: synthesis of spirooxindoles bearing 3-substituted oxindoles
Du, Yanlong,Yu, Aimin,Jia, Jiru,Zhang, Youquan,Meng, Xiangtai
, p. 1684 - 1687 (2017/02/10)
A protocol for the direct functionalization of N-H/α,α,β,β-C(sp3)-H of piperidine without any metal or external oxidants is reported. This reaction is promoted by 4-(trifluoromethyl)benzoic acid via an azomethine ylide intermediate. This is a simple method for the synthesis of spirooxindoles bearing 3-substituted oxindole moieties.
Radical-induced 1,3-Rearrangemets of Allylic Sulfones bearing an Alkylthio or Arylthio Substituent at the α-Position
Fox, Judith M.,Morris, Clare M.,Smyth, G. Darren,Whitman, Gordon H.
, p. 731 - 738 (2007/10/02)
1-Methylthio-1-p-tolylsulfonylprop-2-ene 2 underwent 1,3-rearrangement under conditions of radical initiation with migration of the p-tolylsulfonyl group by a process considered to have involved addition-elimination of arylsulfonyl radicals.In contrast, t
A SIMPLE METHOD FOR THE SYNTHESIS OF γ-FUNCTIONALIZED VINYL AND ALLYL SULFONES
Najera, Carmen,Perez-Pinar, Alfonso,Sansano, Jose M.
, p. 6337 - 6352 (2007/10/02)
The synthesis of γ-functionalized vinyl sulfones 3 have been carried out directly starting from dibromides 2 derived from allyl sulfones 1 by reaction with different nucleophiles.The process is stereoselective affording compounds 3 with E configuration ex
