organolithiums, Grignardreagents, or zincates to sulfinylnitriles triggers a facile sulfinyl–metal exchange to afford N‐ or C‐metalated nitriles. Sulfinyl–magnesium exchange–alkylations efficiently install quaternary and tertiary centers, even in the case of tertiary sulfinylnitriles that contain a highly acidic methine proton. α‐Sulfinylalkenenitriles afford moderately nucleophilic magnesiated nitriles, and
An efficient and eco-friendly electrochemical synthesis of various sulfinic esters from thiols and alcohols via sequential S–H/S bond cleavage and double S–O bond formation under mild reaction conditions has been developed. Stoichiometric oxidants, metal catalysts, activating agents and even added bases were avoided in this method, and the only by-product generated from this reaction was dihydrogen
COMPOSITION, SYNTHESIS, AND USE OF NEW ARYLSULFONYL ISONITRILES
申请人:DUQUESNE UNIVERSITY OF THE HOLY GHOST
公开号:US20150239833A1
公开(公告)日:2015-08-27
This invention relates to novel isonitriles, including arylsulfonyl isonitriles, and methods for their synthesis. The isonitriles include a conjugated ring system. The structure is designed with the flexibility to have multiple substitution patterns. The isonitriles may be used in applications including, but not limited to, pharmaceutical compositions.
Alkyl Sulfinates: Formal Nucleophiles for Synthesizing TosMIC Analogs
作者:J. Armando Lujan-Montelongo、Angel Ojeda Estevez、Fraser F. Fleming
DOI:10.1002/ejoc.201403615
日期:2015.3
Alkylsulfinates function as formalnucleophiles in Mannich-type reactions to give sulfonyl formamides, which are readily dehydrated to the corresponding sulfonylmethyl isonitriles. The efficient, two-step synthesis provides a general route to sulfonylmethyl isonitriles from readily available methyl sulfinates or thiols. Mechanistic analysis reveals that the unusual nucleophlicity of the alkyl sulfinates
Copper‐Catalyzed Olefination of 4‐CF
<sub>3</sub>
‐Substituted Cyclohexadienones Using Sulfonylmethyl Isocyanides: An Electrostatic Repulsion‐Controlled Regioselectivity Switch Strategy
作者:Seungwon Lee、Mohamed Ahmed Abozeid、Hun Young Kim、Kyungsoo Oh
DOI:10.1002/adsc.202201333
日期:2023.2.21
was shown to exert a pronounced electrostatic repulsion effect to give the olefination products via a preferential [3+2] cycloaddition with the ketone moiety followed by a facile fragmentation of transient oxazoline intermediates. The current Cu(II)-catalyzed olefination of 4-CF3-substituted cyclohexadienones demonstrates the reaction dichotomy involving a CF3-controlled 1,2-addition over a Van Leusen