vilsmeier-haack reaction with 2,3,3-trimethyl-3h-benzo[g]indole and its conversion into 2-(1-aryl-1h-pyrazol-4-yl)-3,3-dimethyl-3h-benzo[g]indoles
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abstract
vilsmeier-haack reaction of 2,3,3-trimethyl-3h-benzo[g]indole, then aqueous basic work-up, leads to benzo[g]indol-2-ylidene- malondialdehydes. these react with various arylhydrazines and quinolin-2-ylhydrazine to form 3,3-dimethyl-2-(1-aryl-1h-pyrazol-4-yl)- 3h-benzo[g]indoles in good yields.
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Vilsmeier-Haack Reaction with 2,3,3-Trimethyl-3H-benzo[g]indole and Its Conversion into 2-(1-aryl-1H-pyrazol-4-yl)-3,3-dimethyl-3H-benzo[g]indoles
Vilsmeier-Haack reaction of 2,3,3-trimethyl-3H-benzo[g]indole, then aqueous basic work-up, leads to benzo[g]indol-2-ylidene- malondialdehydes. These react with various arylhydrazines and quinolin-2-ylhydrazine to form 3,3-dimethyl-2-(1-aryl-1H-pyrazol-4-yl)- 3H-benzo[g]indoles in good yields.
full text7-Chloro-2-[1-(4-methoxyphenyl)pyrazol-4-yl]-3,3-dimethyl-3H-indole
In the title compound, C(20)H(18)ClN(3)O, the dihedral angle between the pyrazole and the 3H-indole components is only 13.28 (6)°, indicating that there is conjugation between the two heterocyclic subunits. The N-methoxy-phenyl unit makes a dihedral angle of 25.10 (7)° with the pyrazole ring.
full text(±)-3-(5-Amino-3-methyl-1-phenyl-1H-pyrazol-4-yl)-2-benzofuran-1(3H)-one
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full text2,3,3-Trimethyl-1-[4-(2,3,3-trimethyl-3H-indol-1-ium-1-yl)butyl]-3H-indol-1-ium diiodide
In the crystal of the title salt, C(26)H(34)N(2) (2+)·2I(-), the dication lies on a center of inversion that exists along the mid-point of the butyl chain; its five-membered ring is approximately planar (r.m.s. deviation = 0.011 Å). In the crystal, the iodide anion is disordered over two positions in a 1:1 ratio.
full text(3,5-Dimethyl-1H-pyrazol-1-yl){3-[(3,5-dimethyl-1H-pyrazol-1-yl)carbonyl]-5-methylindolizin-1-yl}methanone
There are two independent mol-ecules in the asymmetric unit of the title compound, C21H21N5O2. In each mol-ecule, the indolizine ring system is essentially planar, with r.m.s. deviations of 0.030 and 0.028 Å. The dihedral angles between the indolizine ring system and the pyrazole rings are 54.7 (3) and 8.6 (3)° in one mol-ecule and 54.4 (3) and 6.6 (3)° in the other. In the crystal, weak C-H⋯O ...
full text4-(3,5-Dimethyl-1H-pyrazol-1-yl)benzenesulfonamide
The two aromatic rings of the title compound, C(11)H(13)N(3)O(2)S, are inclined at an angle of 47.81 (4)°. The N atom of the amino unit is pyramidally coordinated; one H atom inter-acts with the sulfamyl O atom of an adjacent mol-ecule, forming a centrosymmetric hydrogen-bonded dimer. The dimers are linked by N-H⋯N hydrogen bonds, generating a three-dimensional network.
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organic chemistry researchجلد ۲، شماره ۲، صفحات ۱۲۰-۱۲۶
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