n-Butyl 2-(3-chloro-1,2-dihydropyrazin-2-ylidene)-2-cyanoacetate
نویسندگان
چکیده
The title compound, C(11)H(12)ClN(3)O(2), is essentially planar except for the n-but-oxy group [r.m.s. deviation from the least-squares plane = 0.0131 (1) Å for 11 non-H atoms]. An intra-molecular N-H⋯O inter-action results in the formation of an S(6) ring. The n-butoxy chain in the molecule is disordered over two sets of sites of equal occupancy.
منابع مشابه
2-(3-Chloro-1,2-dihydropyrazin-2-ylidene)malononitrile
In the crystal structure of the title compound, C(7)H(3)ClN(4), neighbouring mol-ecules are linked via pairs of N-H⋯N hydrogen bonds into inversion dimers, thereby forming an R(2) (2)(12) ring motif. With respective average deviations from planarity of 0.009 (1) and 0.006 (1) Å, the pyrazine skeleton and the malononitrile fragment are oriented at an angle of 6.0 (1)° with respect to each other....
متن کامل3-[(2E)-2-(Butan-2-ylidene)hydrazinyl]-6-chloropyridazine
The asymmetric unit of the title compound, C(8)H(11)ClN(4), contains two independent mol-ecules (A and B) with slightly different conformations: the dihedral angles between the 3-chloro-6-hydrazinylpyridazine units and butyl side chains are 4.5 (2) and 11.98 (16)°. In the crystal, the A and B mol-ecules are linked by a pair of N-H⋯N hydogen bonds, generating an R(2) (2)(8) loop.
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In the title mol-ecule, C36H39ClN4OS, the non-aromatic part of the cyclo-hex-1-enyl ring and the attached tert-butyl group are disordered over two conformations with occupancy ratios of 0.52 (3):0.48 (3) and 0.53 (3):0.47 (3), respectively. The polyene chain single- and double-bond dimensions contrast with a closely related compound [Bouit et al. (2007 ▶). Chem. Mater.19, 5325-5335] with an app...
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The title compound, C(7)H(14)N(3) (+)·C(25)H(40)N(3)O(4)Si(2) (-)·CH(3)CN, was obtained by the reaction of 2-nitro-1,3-di(pyridin-2-yl)-1,3-di(tert-butyl-dimethyl-sil-yloxy)propane with 1,3,4,6,7,8-hexa-hydro-2H-pyrimido[1,2-a]pyrimidine. Two hydrogen bonds stabilize the Lewis acid/base pair of the nitro-nate and the guanidinium moiety with N⋯O distances of 2.772 (3) and 2.732 (3) Å. Both hydro...
متن کاملN′-Benzoyl-N-tert-butyl-2-chloro-N′-{[3-(6-chloro-3-pyridylmethyl)-2-nitriminoimidazolidin-1-yl]sulfanyl}benzohydrazide
In the title compound, C(27)H(27)Cl(2)N(7)O(4)S, the amide groups bearing the N-S group and the tert-butyl group have s-trans conformations. The steric size of the tert-butyl and [(6-chloro-3-pyrid-yl)meth-yl]imidazolidin-2-yl-idene groups cause the 2-chloro-benzoyl group and the benzyol group to be directed away from one another, forming a dihedral angle of 60.62 (17)°. The central N-N bond ad...
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عنوان ژورنال:
دوره 65 شماره
صفحات -
تاریخ انتشار 2009