Ethyl 5-methyl-7-phenyl-1,2,4-triazolo[4,3-a]pyrimidine-6-carboxylate
نویسندگان
چکیده
In the title compound, C15H14N4O2, the triazolo-pyrimidine ring system is almost planar (r.m.s. deviation = 0.02 Å) and the phenyl ring is inclined to its mean plane by 42.45 (9)°. The carboxyl group is inclined to the triazolo-pyrimidine ring mean plane by 57.8 (3)°. In the mol-ecule, there is a short C-H⋯O contact involving the carbonyl O atom and an H atom of the adjacent methyl substituent. In the crystal, neighbouring mol-ecules are linked by C-H⋯O hydrogen bonds, forming chains propagating along [010]. There are also weak π-π inter-actions present involving the pyridine and phenyl rings of neighbouring chains [inter-centroid distance = 3.8580 (16) Å].
منابع مشابه
Ethyl 7-Methyl-1-(4-nitrophenyl)-5-phenyl-3- (thiophen-2-yl)-1,5-dihydro-[1,2,4]triazolo [4,3-a]pyrimidine-6-carboxylate
A novel compound, ethyl 7-methyl-1-(4-nitrophenyl)-5-phenyl-3-(thiophen-2-yl)-1,5dihydro[1,2,4]triazolo[4,3-a]pyrimidine-6-carboxylate (7) was synthesized by reaction of N-(4nitrophenyl)thiophene-2-carbohydrazonoyl chloride (1) with ethyl 6-methyl-4-phenyl-2-thioxo1,2,3,4-tetrahydropyrimidine-5-carboxylate (2). The mechanism of the studied reaction is discussed and the assigned structure was co...
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عنوان ژورنال:
دوره 70 شماره
صفحات -
تاریخ انتشار 2014