Crystal Structures of Condensation Products of Malononitrile. III. 2-Amino-1,1,3-tricyanopropene ("Dimeric Malononitrile").
نویسندگان
چکیده
منابع مشابه
The condensation of salicylaldehydes and malononitrile revisited: synthesis of new dimeric chromene derivatives.
The reaction of salicylic aldehydes with malononitrile was reinvestigated, and the reaction pathway was followed by 1H NMR spectroscopy. A delicate control of the experimental conditions allowed the synthesis of 2-imino-2H-chromene-3-carbonitriles 1, (2-amino-3-cyano-4H-chromen-4-yl)malononitriles 2, 4-amino-5-imino-2,7-dimethoxy-5H-chromeno[3,4-c]pyridine-1-carbonitrile 12, and (4,5-diamino-1-...
متن کامل2-(4-Nitrobenzylidene)malononitrile
In the title compound, C(10)H(5)N(3)O(2), the benzyl-idene-malono-nitrile unit is nearly planar, with a maximum deviation of 0.129 (2) Å for a terminal N atom; the nitro group is approximately coplanar with the benzene ring [dihedral angle = 8.8 (3)°]. An intra-molecular C-H⋯N hydrogen bond stabilizes the mol-ecular conformation.
متن کامل2-[4-(Benzyloxy)benzylidene]malononitrile
In the title mol-ecule, C(17)H(12)N(2)O, the dihedral angle between the two benzene rings is 84.98 (10)°. The dicyano-ethyl-ene group is coplanar with the benzene ring to which it is bonded. No classic hydrogen bonds were found in the crystal.
متن کامل(E)-2-(1,3-Diphenylallylidene)malononitrile
The title compound, C(18)H(12)N(2), adopts an E conformation with the benzyl-idenemalononitrile and phenyl groups located on opposite sides of the C=C bond. The two phenyl rings are oriented at a dihedral angle of 62.49 (7)°.
متن کامل2-[2-(4-Methoxyphenyl)-2-oxoethyl]malononitrile
The title compound, C(12)H(10)N(2)O(2), was obtained unintentionally during the synthesis of 2-amino-5-(4-meth-oxy-phen-yl)furan-3-carbonitrile. In the crystal, weak inter-mol-ecular C-H⋯N and C-H⋯π inter-actions link the mol-ecules into columns propagating in [010].
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ژورنال
عنوان ژورنال: Acta Chemica Scandinavica
سال: 1971
ISSN: 0904-213X
DOI: 10.3891/acta.chem.scand.25-1999