(1aR*,2R*,7S*,7aS*)-rel-3,6-Dimethoxy-2-methyl-1a,2,7,7a-tetrahydro-2,7-epoxy-1H-cyclopropa[b]naphthalene
نویسندگان
چکیده
منابع مشابه
4,5,9,10-tetrahydro-4-methyl-2-phenyl-9,10-epoxy-3H,10aH-cyclobuta[a]benzo[2,3,4-de]isoquinoline-3,5-dione.
In the title compound, C(21)H(15)NO(3), which is one of the photoreaction products of N-methyl-1,8-naphthalenedicarboximide with phenylacetylene, the cyclobutene and epoxy rings are trans to each other across the cyclohexene ring of the tetralin moiety. The dihedral angle between the mean planes of the cyclobutene and cyclohexene rings is 112.80 (2) degrees, while the latter makes a dihedral an...
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The title compound, C(6)H(7)NO(2), is essentially planar with a dihedral angle of 3.6 (3)° between the pyrrole ring and the methoxy-carbonyl O/C/O/C plane. In the crystal structure, the N atom is a hydrogen-bond donor to the carboxylate C=O O atom of the neighboring mol-ecule. These inter-molecular hydrogen bonds lead to the formation of helical chains along the b axis.
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In the title compound, C(12)H(14)N(2)O(2), the indole ring is essentially planar, with an r.m.s. deviation of 0.0136 Å. In the crystal, pairs of N-H⋯O hydrogen bonds link the mol-ecules into inversion dimers..
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A novel method for the preparation of (±)-methyl 1,1a,2,7b-tetrahydro-2-oxocyclopropa[c] chromene-1a-carboxylate has been developed. The cyclopropanation of methyl coumarin-3-carboxylate provided title compound in moderate yield by dropwise treatment with 1.5 equiv. of dimethylsulfoxonium methylide over 6 h. The structure of the newly synthesized compound was determined using 1H-, 13C-NMR, IR a...
متن کامل2-Amino-4-methyl-4,5,6,7-tetrahydro-1-benzothiophene-3-carbonitrile
In the title compound, C(10)H(12)N(2)S, the thio-phene ring is essentially planar (r.m.s. deviation = 0.0290 Å). The two C atoms of the cyclo-hexene ring (at positions 6 and 7) are disordered over two sets of sites in a 0.810 (5):0.190 (5) ratio. The cyclo-hexene rings in both the major and minor occupancy conformers adopt a half-chair conformation. In the crystal, there are two types of N-H⋯N ...
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ژورنال
عنوان ژورنال: IUCrData
سال: 2016
ISSN: 2414-3146
DOI: 10.1107/s2414314616003412