tert-Butyl imidazole-1-carboxylate
نویسندگان
چکیده
In the title compound, C(8)H(12)N(2)O(2), mol-ecules are inter-connected by weak C-H⋯O contacts with H⋯O distances of 2.30 Å, resulting in the formation of chains along [100]. According to graph-set analysis, the unitary descriptor of these chains is C(5). In addition, there are π-π stacking inter-actions between pyrazole rings (centroid distance = 3.878 Å and ring plane distance = 3.26 Å).
منابع مشابه
tert-Butyl 2-sulfanylidene-2,3-dihydro-1H-imidazole-1-carboxylate
In the title mol-ecule, C(8)H(12)N(2)O(2)S, the imidazole ring forms a dihedral angle of 5.9 (2)° with the mean plane of the carboxyl-ate group. In the crystal, mol-ecules are linked by pairs of N-H⋯S hydrogen bonds, forming inversion dimers.
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In the crystal structure of the title compound, C(9)H(12)N(2)O(3), weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains. Further weak C-H⋯O hydrogen bonds together with π-π inter-actions [centroid-centroid distance = 3.672 (4) Å] between neighbouring chains lead to a double-chain structure propagating in [100].
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In the title mol-ecule, C(21)H(24)N(2)O(3), the imidazole ring is essentially planar, with a maxium deviation of 0.015 (1) Å. The dihedral angle between the benzene and imidazole rings is 65.47 (6)°. The crystal packing is stabilized by weak inter-molecular C-H⋯O and C-H⋯N hydrogen bonds, forming zigzag chains along the c axis. The crystal structure is further stabilized by C-H⋯π inter-actions.
متن کاملtert-Butyl 4-(1-methyl-1H-pyrazol-5-yl)piperidine-1-carboxylate
The reaction of (E)-tert-butyl 4-[3-(dimethyl-amino)acrylo-yl]piperidine-1-carboxyl-ate with methyl-hydrazine leads to the formation of the title compound, C(14)H(23)N(3)O(2), with a 1-methyl-1H-pyrazol-5-yl substituent. The plane of the pyrazole ring forms a dihedral angle of 33.4 (1)° with the approximate mirror plane of the piperidine ring.
متن کاملtert-Butyl 1-hydroxypiperidine-2-carboxylate
The title compound, C(10)H(19)NO(3), is a disubstituted piperidine bearing substituents in two equatorial positions. One of the substituents is a hy-droxy group bound to nitro-gen and the second a tert-butyl ester group bound to the carbon next to the endocyclic nitro-gen. Enanti-omers of the title compound form hydrogen-bridged dimers across a center of inversion.
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