1-Allyl-4-(1,3-benzothiazol-2-yl)-5-methyl-2-phenyl-1H-pyrazol-3(2H)-one
نویسندگان
چکیده
The title compound, C(20)H(17)N(3)OS, is a 1H-pyrazol-3(2H)-one having aromatic 4-(1,3-benzothia-zol-2-yl)- and 2-phenyl substituents. The five-membered ring and fused ring system are planar, the r.m.s. deviations being 0.021 and 0.005 Å, respectively. The five-membered ring is aligned at 7.9 (2)° with respect to the fused-ring system. The allyl and phenyl parts of the mol-ecule are both disordered over two positions in a 1:1 ratio. Weak inter-molecular C-H⋯O hydrogen bonding is present in the crystal structure.
منابع مشابه
4-(1,3-Benzothiazol-2-yl)-5-methyl-2-phenyl-1-propynyl-1H-pyrazol-3(2H)-one
The title compound, C(20)H(15)N(3)OS, is a 1H-pyrazol-3(2H)-one having aromatic 4-(1,3-benzothia-zol-2-yl) and 2-phenyl substit-uents. The five-membered ring and the fused-ring system are close to planar, the r.m.s. deviations being 0.025 and 0.005 Å, respectively. The five-membered ring is aligned at 67.5 (1)° with respect to the phenyl ring and at 4.7 (1)° with respect to the fused-ring syste...
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The central five-membered ring of the title compound, C(18)H(15)N(3)OS, is almost planar (r.m.s. deviation = 0.028 Å) and the benzothia-zole fused-ring system is close to coplanar with this ring [dihedral angle = 6.1 (1)°]. The phenyl substituent is twisted by 62.5 (1)°.
متن کاملGreen and diastereoselective synthesis of trans-3-(5-methylisoxazol-3-yl)-3,4-dihydro-2H-naphtho[2,3-e][1,3]oxazines
Reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-SiO2/HClO4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1H-pyrazol-5-ol derivatives in high yields.
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