$$\hbox Cu}^2+}$$ -doped zeolitic imidazolate framework-8 (ZIF-8)-catalyzed one-pot procedure to synthesize $$\upbeta $$ -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 $$\upbeta $$ -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 $$\upbeta $$ -keto and vinyl sulfones. $$\hbox Cu}^2+}$$ -doped zeolitic imidazolate framework-8 (ZIF-8)-catalyzed one-pot procedure to synthesize $$\upbeta $$ -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 $$\upbeta $$ -keto and E-stereoselectivity. This efficient Cu/ZIF-8 heterogeneous catalyst is explored for the first time for C-S bond formation.
本研究描述了掺杂
沸石咪唑酸框架-8(ZIF-8)催化的单锅程序,该程序在温和的条件下通过自由基反应直接
氧化磺酰化和
氢化磺酰化
炔烃,从而合成 $$\upbeta $$ -
酮和
乙烯基砜。该方法的优点包括:底物范围广,具有出色的 $$\upbeta $$ -
酮和 E-立体选择性。Cu/ZIF-8
催化剂不仅性能优异,而且在反应中具有极高的稳定性,可成功
重复使用长达五个周期。我们首次探索了这种高效的 Cu/ZIF-8 异构
催化剂来生成 $$\upbeta $$ -
酮和
乙烯基砜。介绍了掺杂
沸石咪唑框架-8(ZIF-8)催化的单锅程序,该程序在温和条件下通过自由基反应直接
氧化磺酰化和
氢化磺酰化
炔烃,从而合成 $$\upbeta $$ -
酮和
乙烯砜。该方法的优点包括:底物范围广,具有出色的$\upbeta $$ -
酮和E-立体选择性。这种高效的 Cu/ZIF-8 异构
催化剂首次被用于 C-S 键的形成。