Schiff bases from aminothiazoles

Aryl amines, 403 4-Aryl-2-aminothiazoles, 178-182 mercuration of, 81 nitration of, 72 reduction of, 86 Schiff bases from, 99 Aryl diazonium salts, reaction with, rho-danine, 419... 

Co(II), Ni(n), Cu(n), and Zn(II) complexes of Schiff bases derived from 4-aryl-2-aminothiazoles and salicylaldehyde have been prepared, and structure 276 (Scheme 170) was established by magnetic susceptibility measurements and by infrared, electronic, and mass spectra (512). 

Schiff bases, 256-259, 268, 270 to amines. 40 from aminothiazoles, 98 with 2-amino thiazoles, 30, 40 complexes of, 99 cyclization to, 42 IR spectra of, 41 in reduction by AlLiH,. 14 in reduction by NaBH4, 14 LTV spectra of, 41 see also Thiazolylamidines Schistosomacidal, 141 Schistosomiasis japonica, 145 Schotten-Bauman reaction. 51. 123 Sedative, 145. 148,438 Selective herbicide, 135 Self association, effect of, on UV spectra of A-4-thiazoline-2-thione. 381 A-4-thiazoline-2-one, relation with protomery, 377... 

The condensation of substituted 2>aminothiazoles with paraformaldehyde and acetophenone in boiling ethanol affords 40—50% yields of 2-(j3-benzoylethylamino)thiazoles (85). Schiff s bases (86), derived from 2-amino-4-phenylthiazole, are readily prepared and are reduced cata-... 

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