Synthesis and thermal reactions of cyano-stabilized cyclic sulfur ylides, 2-alkyl-1-cyano-3,4-dihydro-1H-2-thionianaphthalen-1-ides.
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چکیده
منابع مشابه
2-Cyano-1-methylpyridinium nitrate
In the title compound, C(7)H(7)N(2) (+)·NO(3) (-), all atoms except the methyl H atoms lie on a crystallographic mirror plane. The inter-layer distance, including that between aligned N atoms from alternating cations and anions in adjacent layers, is exceptionally short at 3.055 (1) Å. Two-dimensional C-H⋯O hydrogen-bonded networks link cations to anions, while C-H⋯N inter-actions link cations ...
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The cation in the title compound, C7H7N2 (+)·I(-), is planar (r.m.s. deviation for the nine fitted non-H atoms = 0.040 Å). The crystal packing is best described as undulating layers of cations and anions associated via C-H⋯I inter-actions.
متن کامل(R)-2-Cyano-N-(1-phenylethyl)acetamide
In the title compound, C11H12N2O, the dihedral angle between the acetamide group and the benzene ring is 68.7 (1)°. In the crystal, N-H⋯O and weak C-H⋯O hydrogen bonds link the mol-ecules into chains along the a-axis direction.
متن کامل1-[(Z)-2-Cyano-2-(2-pyridyl)vinyl]ferrocene
In the title compound, [Fe(C(5)H(5))(C(13)H(9)N(2))], the dihedral angle between the substituted cyclo-penta-dienyl plane and the plane of the pyridine ring is 8.43 (14)°. The double bond adopts a Z configuration. In the crystal structure, weak C-H⋯N inter-actions link the molecules into a zigzag chain. A weak intramolecular C-H⋯N hydrogen bond is also present.
متن کاملEthyl (2E)-2-cyano-3-(1-methyl-1H-pyrrol-2-yl)prop-2-enoate
The 15 non-H atoms of the title compound, C(11)H(12)N(2)O(2), are approximately coplanar, the r.m.s. deviation being 0.145 Å. The major deviation from coplanarity is seen in a twist between the ethene (E configuration) and pyrrole rings [C-C-N-C torsion angle = -8.26 (18)°]. The carbonyl O and cyano N atoms are syn to each other. In the crystal, supra-molecular linear tapes linked by C-H⋯O and ...
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ژورنال
عنوان ژورنال: Chemical and Pharmaceutical Bulletin
سال: 1988
ISSN: 0009-2363,1347-5223
DOI: 10.1248/cpb.36.1698