Leusen, Daan van; Leusen, Albert M. van, Recueil des Travaux Chimiques des Pays-Bas, 1991, vol. 110, # 10, p. 393 - 401
作者:Leusen, Daan van、Leusen, Albert M. van
DOI:——
日期:——
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