A metal-free and efficient visible-light induced cascade cyclization of alkyne-tethered cyclohexadienones with selenosulfonates for the synthesis of 3-sulfonyl-5-selanyl-4a,5-dihydro-2H-chromen-6(8aH)-one in good to excellent yields has been developed, in which three new stereocenters are formed and both sulfone and selenyl groups are simultaneously introduced.

中文翻译：

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3-sulfonyl-5-selanyl-4a,8a-dihydro-2H-chromen-6(5H)-ones 通过可见光驱动的炔烃链环己二烯酮和硒代磺酸盐的分子间级联环化无金属合成

一种无金属且高效的可见光诱导炔烃连接的环己二烯酮与硒代磺酸盐的级联环化，用于合成 3-sulfonyl-5-selanyl-4a,5-dihydro-2H-chromen-6(8aH)-one已经开发出优异的产率，其中形成了三个新的立体中心，同时引入了砜和硒基。