1- (phthalazin-l'-yl-amino)-3-chloro-4-aryl-4h-(4o-rm ethyl)-2-azetidinones (3) were prepared by cycloaddition of-methyl substituted benzal hydrazinophthalazine (2) with chloro acetylchloride. the hydrazone (2) was synthesised by the condensation of 1- hydrazinophthalazine (1) with substituted aromatic aldehydes, ketones 7 acetophenones. 1- hydrazinophthalazine was prepared from the phthal...

In the title salt, C11H12ClN2O(+)·Cl(-), the ten non-H atoms comprising the quinolinium residue are coplanar (r.m.s. deviation = 0.041 Å) and the hy-droxy-ethyl group is approximately perpendicular to this plane [Cring-N-Cmethyl-ene-C torsion angle = -74.61 (18)°]. A supra-molecular chain aligned along [101] mediated by charge-assisted O/N-H⋯Cl(-) hydrogen bonds features in the crystal packing....

The 1,2,3-triazole is a well-known biologically active pharmacophore constructed by the copper-catalyzed azide–alkyne cycloaddition. We herein reported synthesis of 4-amino-7-chloro-based [1,2,3]-triazole hybrids via Cu(I)-catalyzed Huisgen 1,3-dipolar cycloaddition 4-azido-7-chloroquinoline with an alkyne derivative acetaminophen. compound was fully characterized Fourier-transform infrared (FT...

In the title compound, C(7)H(6)ClN(3)O(4)S(2)·3C(5)H(5)N, (systematic name: 6-chloro-2H-1,2,4-benzothia-diazine-7-sulfonamide 1,1-dioxide pyridine tris-olvate), chloro-thia-zide forms a 1:3 solvate with pyridine. The crystal structure is stabilized by strong inter-molecular N-H⋯N hydrogen bonds.

A highly sensitive fluorometric assay for the determination of monooxygenase activity in liver microsomes is described. The assay is based on the use of 3-chloro-7-methoxy-4-methylcoumarin which is demethylated to 3-chloro-7-hydroxy-4-methylcoumarin. The rate of formation of 3-chloro-7-hydroxy-4-methylcoumarin was recorded as an increase of fluorescence (lambdaA = 380 nm, lambdaF = 480 nm) with...

In the title compound, C(21)H(15)ClO(2)S, the O atom and the phenyl group of the phenyl-sulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment; the phenyl ring is almost perpendicular to this plane [82.24 (7)°]. The phenyl ring in the 2-position is rotated out of the benzofuran plane, making a dihedral angle of 11.50 (9)°. The crystal structure is stabilized by inter...

In the title salt, C(21)H(18)ClNO, the quinoline ring system is approximately planar [maximum deviation = 0.035 (2) Å], and forms a dihedral angle of 71.42 (6)° with the attached phenyl ring. The cyclo-hexa-none ring exists in a half-boat conformation. In the crystal packing, C-H⋯O contacts link the mol-ecules into extended supra-molecular chains along the c axis.