Visible Light-Induced Highly Regioselective and Stereoselective Oxysulfonylation of Alkynes for the Synthesis of (E)-β-Phenoxy Vinylsulfones.
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DOI: 10.1021/acs.orglett.2c02512
Abstract: A highly efficient visible light-induced regioselective and stereoselective oxysulfonylation of alkynes with arylsulfonate phenol esters has been developed. This photocatalyst- and metal-free method proceeds smoothly under very mild conditions and exhibits a broad substrate scope,… read more here.
Keywords: light induced; oxysulfonylation alkynes; phenoxy vinylsulfones; visible light ... See more keywords
Regioselective and stereoselective cleavages of P–S/C–S bonds by lithium and the formation of P-stereogenic functional phosphine derivatives
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DOI: 10.1039/d0qo00891e
Abstract: Various menthyl-containing phosphinothioates were prepared. Using these compounds, an unusual phosphorus-promoted cleavage of the C–S bond with lithium-naphthalene was examined. The C–S/P–S cleavages could be controlled by the amount of naphthalene and temperature applied. Also,… read more here.
Keywords: regioselective stereoselective; lithium formation; stereoselective cleavages; bonds lithium ... See more keywords
Highly regioselective and stereoselective cascade reductive cyclization of δ-ketoamide: practical access to oxa-bridged benzazepines.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d3cc01495a
Abstract: A highly regioselective and stereoselective cascade reduction cyclization of δ-ketoamide is realized under LiAlH4-assisted conditions, providing an atom-economical and straightforward approach to access oxa-bridged benzazepines in moderate to good yields. This method overcomes the limitations… read more here.
Keywords: highly regioselective; cyclization ketoamide; access oxa; stereoselective cascade ... See more keywords