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Thioamides s. Carboxylic acid

Thioacetals s. Mercaptals Thioacylamines s. Carboxylic acid thioamides Thioamides s. Carboxylic acid thioamides... [Pg.242]

F. e. and reactions s. J. Perregaard, I. Thomsen, and S.-O. Lawesson, Acta Chem. Scand. B 29, 538, 599 (1975) carboxylic acid thioamides from carboxylic acid esters s. ibid. B 29, 604. [Pg.157]

Liebscher J, Feist K (1985) Formylation products of thioamides Part 11. A novel route to substituted 2-aminothiophenes by the reaction of S-alkylated thioamides with carboxylic acid derivatives. Synthesis 1985 412-414... [Pg.273]

Thiacylamines s. Carboxylic acid thioamides 2-Thia-l,3-diazaadamantanes... [Pg.333]

The most widely used method for the preparation of carboxylic acids is ester hydrolysis. The esters are generally prepared by heterocyclization (cf. Chapter II), the most useful and versatile of which is the Hantzsch s synthesis, that is the condensation of an halogenated a- or /3 keto ester with a thioamide (1-20). For example ethyl 4-thiazole carboxylate (3) was prepared by Jones et al. from ethyl a-bromoacetoacetate (1) and thioformamide (2) (1). Hydrolysis of the ester with potassium hydroxide gave the corresponding acid (4) after acidification (Scheme 1). [Pg.520]

Benzimidoyl chlorides and )V, -dimethyl-)V -thiobenzoylfoimamidine react to afford thioimidic acid anhydrides (270 Scheme 40). Spirocyclic thioimino esters have been prepared from benzimidoyl chlorides and thiazolin-S-thiones.- Carboxylic acid imidothio acid anhydrides (271) can be synthesized from carboxylic acid chlorides and secondary thioamides. ... [Pg.539]

Carboxylic acid thioamides from amines s. 4, 547 CH2NH2 CSNHs... [Pg.417]

When thioacetic S-acid is used in this reaction, N-acetylthioamide is obtained as a by-product. The rearrangement of the mixed anhydride intermediate CIII prior to cleavage can be avoided by conducting the reaction at room temperature ( 3.34 isocyanides are treated with carboxylic acid chlorides and hydrogen sulfide, the thioamides CIV are obtained ( ). [Pg.84]

Carboxylic acid thioamides. Ca. 2 moles AICI3 added slowly with ice-cooling to anisole and dimethylthiocarbamyl chloride, stirred at room temp., finally warmed 15 min. at 40° p-methoxy-N,N-dimethylthiobenzamide. Y 11%. F. e., also thioketones, thiono- and dithio-carboxylic acid esters, s. H. Viola, S. Scheithauer, and R. Mayer, B. 101, 3517 (1968). [Pg.196]

Acylaminosulfenium salts S-Acylhydrosulfamines N-Acylsulfenamides N-Acylsulfilimines 1 - Alkoxy-1 -alkylthio-1 -amines 1 - Alkylthio-1 -oximes S-Aminosulfoxonium ylids Carboxylic acid thioamide S-oxides... [Pg.264]

A soln. of Na-methoxide in methanol added dropwise to a soln. of Se-phenyl 4-methylbenzenecarboselenothioate in ether, and stirred at ca. 20° for 2 h O-methyl 4-methylbenzenecarbothioate. Y 86%. F.e. and prepn. startg. m., also carboxylic acid thioamides from amines, s. S. Kato et al., Bull. Chem. Soc. Japan 61, 3931-42 (1988). [Pg.340]

Carboxylic acid thioamides from selenolthionocarboxylic acid esters s. 44, 202... [Pg.370]

Subst. carboxylic acid thioamides from isothiocyanates N = C = S - NHCSR... [Pg.411]

See other pages where Thioamides s. Carboxylic acid is mentioned: [Pg.270]    [Pg.298]    [Pg.314]    [Pg.281]    [Pg.270]    [Pg.298]    [Pg.314]    [Pg.281]    [Pg.298]    [Pg.276]    [Pg.242]    [Pg.254]    [Pg.1184]    [Pg.192]    [Pg.468]    [Pg.179]    [Pg.1278]    [Pg.179]    [Pg.438]    [Pg.272]    [Pg.875]    [Pg.256]    [Pg.172]    [Pg.219]    [Pg.390]    [Pg.390]    [Pg.390]   


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Thioacylamines s. Carboxylic acid thioamides

Thioamidation

Thioamide

Thioamides

Thioamides acidity

Thioamides s. Carboxylic

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