ChemInform Abstract: A Metal Free Chlorothiolation Strategy for Synthesis of Vinyl Sulfides from Internal Alkynoates.

Surineni, Naresh; Buragohain, Pori; Saikia, Bishwajit; Barua, Nabin C.; Baruah, R. N.

doi:10.1002/chin.201614080

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2021

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“…14 Barua and co-workers have developed a metal-free chlorothiolation of internal alkynoates, thiols, and N-chlorosuccinimide for the synthesis of tetrasubstituted (E)-β-chloroalkenyl sulfides. 15 Matsubara et al…”

Section: ■ Introductionmentioning

confidence: 99%

Recyclable Gold Catalyst for the Stereoselective Thioallylation of Alkynes

Niu

Xiao

et al. 2021

J. Org. Chem.

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The heterogeneous gold(I)-catalyzed stereoselective thioallylation of electron-deficient alkynes with allyl sulfides has been achieved by using an MCM-41-immobilized sterically demanding NHC-gold(I) complex [MCM-41-IPrAuNTf2] as the catalyst under mild conditions, delivering a wide variety of stereodefined tri- and tetrasubstituted functionalized vinyl sulfides in good to excellent yields. The new heterogeneous MCM-41-IPrAuNTf2 catalyst exhibits an activity comparable to a homogeneous IPrAuNTf2 complex and can be recovered via a simple filtration process and reused for at least seven consecutive cycles without any apparent loss of its catalytic activity and selectivity.

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Section: ■ Introductionmentioning

confidence: 99%