α-(4-Methyl-2-nitrophenylhydrazono)acetoacetanilide, C17H16N4O4

CI Pigment Yellow 74, α-(2-methoxy-4-nitrophenylhydrazono)-α-aceto-2'-methoxyacetanilide

“…This conclusion has been confirmed by other investigators (Paulus, Rieper & Wagner, 1983;Brown & Yadav, 1984;Paulus, 1984). The crystal measured 0.30 x 0.60 x 0.20 mm.…”

“…This conclusion has been confirmed by other investigators (Paulus, Rieper & Wagner, 1983;Brown & Yadav, 1984;Paulus, 1984). It had also been found that in pigments of this type the pigment molecule contains intramolecular hydrogen bonding and this generally tends to keep the molecule approximately planar.…”

N-(3,4-Dichlorophenyl)-3-oxobutanamide

“…For the synthesis and biological activity of the title compound, see: Lliopoulos et al (1986); Grissar et al (1982). For related structures, see: Whitaker (1986Whitaker ( , 1987Whitaker ( , 1988; Whitaker & Walker (1987); Brown & Yadav (1984); Tai et al (2005); Sundar et al (2005); Guo (2004); Robin et al (2002). For hydrogen-bond motifs, see: Bernstein et al (1995).…”

“…Acetoacetanilide, a very useful chemical intermediate in the production of pigments (Whitaker, 1986(Whitaker, , 1987(Whitaker, , 1988Whitaker & Walker, 1987;Brown & Yadav, 1984) possesses cardiotonic, antihypertensive and anti-thrombic properties (Grissar et al, 1982). The title compound, (I), is used as an intermediate in the synthesis of acetoacetanilide and a variety of other biologically important heterocyclic compounds containing pyridine, pyrimidine and imidazole.…”

Crystal Structure Optimization and Semi-Empirical Quantum Chemical Calculations of N-(3,4-Dichlorophenyl)-3-Oxo-Butanamide

“…Acetoacetanilide is a very useful chemical intermediate synthesized for the production of various pigments and biologically important heterocycles [1][2][3][4][5]. The property of any material for its typical application is based upon its conformation at molecular level and upon the crystal packing in a bulk crystalline state.…”