1370640-79-1Relevant academic research and scientific papers
Cu-doped zeolitic imidazolate framework catalysed highly selective conversion of alkynes to β -keto and vinyl sulfones using sodium sulfinates
Yalavarthi, Nageswara Rao,Gundoju, Narayanarao,Bokam, Ramesh,Ponnapalli, Mangala Gowri
, (2019)
Abstract: Cu 2 +-doped zeolitic imidazolate framework-8 (ZIF-8)-catalyzed one-pot procedure to synthesize β -keto and vinyl sulfones by the direct oxysulfonylation and hydrosulfonylation of alkynes via radical reaction under mild conditions has been described. The advantages of this protocol included broad substrate scope and excellent β -keto and E-stereoselectivity. The Cu/ZIF-8 catalyst not only exhibited excellent performance but also had a great stability in the reaction, successfully allowing its reuse up to five cycles. This efficient Cu/ZIF-8 heterogeneous catalyst is explored for the first time to generate β -keto and vinyl sulfones. Graphical Abstract:: Cu 2 +-doped zeolitic imidazolate framework-8 (ZIF-8)-catalyzed one-pot procedure to synthesize β -keto and vinyl sulfones by the direct oxysulfonylation and hydrosulfonylation of alkynes via radical reaction under mild conditions is described. The advantages of this protocol included broad substrate scope and excellent β -keto and E-stereoselectivity. This efficient Cu/ZIF-8 heterogeneous catalyst is explored for the first time for C-S bond formation. [Figure not available: see fulltext.].
A regioselective catalyst- and additive-free synthesis of β-keto sulfones from aryl acetylenes and sodium arenesulfinates
Sreedhar, Bojja,Rawat, Vikas S.
supporting information; experimental part, p. 413 - 417 (2012/03/11)
A facile and regioselective procedure for the preparation of β-keto sulfones has been developed through a simple reaction of aryl acetylenes and sodium arenesulfinates in nitroethane as a solvent at 50°C. The procedure is catalyst- and additive-free and shows a wide range of functional-group tolerance. In this system the formation of new C-O and C-S bonds occurs in a one-pot procedure. Georg Thieme Verlag Stuttgart · New York.
