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Isothiazoles as auxiliaries in organic syntheses

The sulfur ylides 254 used in the stereoselective [2,3]-sigmatropic rearrangement are generated by copper(I)-catalyzed Doyle-Kirmse reaction of aryl sulfides 253 and diazo compounds bearing Oppolzer s camphor sultam auxiliary 252 in the presence of chiral diamine ligand S, S)-259 05JA15016 . These intermediate ylides undergo spontaneous [Pg.268]

Acyclic dienes bearing Oppolzer s sultam auxiliary 261 have been utilized in the synthesis of functionalized 1,4-dihydronaphthalenes 05JA15028 . Cycloaddition of dienes 261 with benzynes, generated from 2(trimethylsilyl)phenyl triflate 263 using cesium fluoride, provides cycloadducts 263 with excellent diastereoselectivities. [Pg.269]

See other pages where Isothiazoles as auxiliaries in organic syntheses is mentioned: [Pg.268]    [Pg.268]    [Pg.268]    [Pg.293]    [Pg.293]    [Pg.268]    [Pg.268]    [Pg.268]    [Pg.293]    [Pg.293]    [Pg.242]    [Pg.251]    [Pg.214]   
See also in sourсe #XX -- [ Pg.293 ]

See also in sourсe #XX -- [ Pg.293 ]



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