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Acetal aminothio

Treatment of thioketone 635 with a-diazo carbonyl compounds in the presence of Rh2(OAc)4 gives 3-aminothio-phenes 637. Condensation of the ketene acetal with carbenoids, derived from diazo compounds, produces the intermediates 636, which undergo an intramolecular cyclization and subsequent aromatization to afford 637 (Scheme 95) <2002J(P1)2414, 20020L873>. [Pg.898]

Substituted 5-Methyl Derivatives Monothio, Dithio, and Aminothio Acetals 669... [Pg.648]


See other pages where Acetal aminothio is mentioned: [Pg.277]    [Pg.290]    [Pg.471]    [Pg.282]    [Pg.236]    [Pg.152]    [Pg.243]    [Pg.388]    [Pg.236]    [Pg.23]   
See also in sourсe #XX -- [ Pg.443 ]




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Monothio, dithio, and aminothio acetals

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