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Isothiazoles, acetyl 5- substituted

Friedel-Crafts acylation usually fails (72AHC(14)43), but 3-substituted l-methyl-2,1-benzisothiazole 2,2-dioxides can be acetylated at the 5-position (73JHC249). l-Methyl-2,1-benzisothiazol-3-one can be chlorsulfonated at the 5-position (78JHC529). Vilsmeier-Haack formylation causes cleavage of the isothiazole ring (80JCR(S)197). [Pg.154]

See other pages where Isothiazoles, acetyl 5- substituted is mentioned: [Pg.567]

See also in sourсe #XX -- [ Pg.111 ]

See also in sourсe #XX -- [ Pg.111 ]

See also in sourсe #XX -- [ Pg.111 ]

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Acetyl substitution

Acetyl-substituted

Isothiazole

Isothiazoles

Isothiazoles, acetyl