Silver-mediated oxidative C–C bond sulfonylation/arylation of methylenecyclopropanes with sodium sulfinates: facile access to 3-sulfonyl-1,2-dihydronaphthalenes
sulfonylation/arylation of a C–C σ-bond in methylenecyclopropanes with sodium sulfinates to synthesize various 3-sulfonylated 1,2-dihydronaphthalenes is reported. This sulfonylation/arylation transformation proceeds via a sequence of sulfonylation, C–C σ-bond cleavage and intramolecular cyclization, and the experimental results show that the C–C σ-bond difunctionalization reaction includes a radical process. This
Without using any transitionmetal and base, an eco‐friendly, practical and economical protocol has been established for the one‐potsynthesis of diverse (E)‐1‐phenyl‐4‐sulfonylbut‐1‐enes from easily accessible starting materials. This strategy features a wide substrate scope, tolerates a broad range of functional groups, employs a less expensive oxidant, is operationally simple, and can be easily scaled‐up
Visible-Light-Catalyzed C–C Bond Difunctionalization of Methylenecyclopropanes with Sulfonyl Chlorides for the Synthesis of 3-Sulfonyl-1,2-dihydronaphthalenes
A novel visible-light-catalyzed sulfonylation/arylation of carbon–carbon σ-bond with sulfonyl chlorides for the synthesis of 3-sulfonylated 1,2-dihydronaphthalenes is developed. This difunctionalization proceeds via a sequence of C═C bond sulfonylation, C–C σ-bond cleavage, and intramolecular cyclization, and the experiment result shows that the C–C σ-bond difunctionalization reaction includes a radical
A new FeCl2- and DTBP (di-tert-butyl peroxide)-promoted oxidative ring-opening and cyclization of methylenecyclopropanes with aldehydes for the synthesis of 2-acyl-3,4-dihydronaphthalenes is presented. This oxidative cyclization reaction proceeds via a radical addition, ring-opening, and cyclization sequence facilitated by a Lewis acid, and it offers a practical and straightforward route for the oxidative