The conformation of the N-H bond in the structure of the title compound, C(9)H(10)ClNO, is syn to the meta-methyl group, in contrast to the anti conformation observed with respect to the meta-nitro group in 2-chloro-N-(3-nitro-phen-yl)-acetamide. The asymmetric unit of the title compound contains two mol-ecules. The geometric parameters of the title compound are similar to those of 2-chloro-N-(...

Syntheses of steroidal heterocycles containing a five-membered N,S- heterocycle attached at the 6,7 positions of the B ring are reported. 5Alpha-cholestane-6-one (1), its 3beta-acetoxy- (2) and 3beta-chloro- (3) analogues reacted with semicarbazide and aqueous sodium acetate in refluxing ethanol to yield 5alpha-cholestan-6-one-semicarbazone 1a and its 3-beta-acetoxy and 3beta-chloro derivatives...

In the title compound, C(25)H(26)ClN, the piperidine ring has a chair conformation with all ring substituents in equatorial positions. The dihedral angle formed between the chloro-benzene ring and the flanking phenyl rings are 74.91 (18) and 47.86 (17)°. The chloro substituent is anti to the piperidine N atom. In the crystal, centrosymmetrically related mol-ecules aggregate via π-π inter-action...

The efficient asymmetric synthesis of new chiral γ-chloro-α,β-diamino acid derivatives via highly diastereoselective Mannich-type reactions of N-(diphenylmethylene) glycine esters across a chiral α-chloro-N-p-toluenesulfinylimine was developed. The influence of the base, LDA or LiHMDS, used for the formation of the glycine enolates, was of great importance for the anti-/syn-diastereoselectivity...

The conformation of the N-H bond in the structure of the title compound, C(8)H(7)BrClNO, is syn to the 2-chloro substituent in the aniline ring and anti to both the C=O and C-Br bonds in the side chain, similar to that observed in 2-chloro-N-(2-chloro-phen-yl)acetamide. In the crystal, mol-ecules are linked into chains along the a axis by N-H⋯O hydrogen bonds. These chains are in turn linked in...

The title compound, C(24)H(12)BrCl(2)NO(4), was synthesized from 2-amino-3-bromo-1,4-naphthoquinone and 2-chloro-benzoyl chloride. The crystal structure shows that each of the chloro-phenyl rings is inclined at about 60° to the naphthoquinone ring system. The two chloro-phenyl rings adopt a conformation that ensures that chlorine substituents are anti so as to reduce electronic repulsion. An ex...

The conformation of the N-H bond in the structure of the title compound (3NPDCA), C(8)H(6)Cl(2)N(2)O(3), is anti to the meta-nitro group, similar to that in the structures of 2-chloro-N-(3-nitro-phen-yl)acetamide (3NPCA) and 2,2,2-trichloro-N-(3-nitro-phen-yl)acetamide (3NPTCA), and the meta-chloro group in 2,2-dichloro-N-(3-chloro-phen-yl)acetamide (3CPDCA). The geometric parameters of 3NPDCA ...

A 4-Chloro-2-nitrophenol (4C2NP) decolourizing strain RKJ 700 was isolated from soil collected from a pesticide contaminated site of India and identified as Bacillus subtilis on the basis of the 16S rRNA gene sequence analysis. Bacillus subtilis RKJ 700 decolourized 4C2NP up to concentration of 1.5 mM in the presence of additional carbon source. The degradation pathway of 4C2NP was studied and ...

The solvated title compound, bis-[2,6-bis-(1-{[4-(di-methyl-amino)-phen-yl]imino-κN}eth-yl)pyridine-κN]nickel(II) dichloride-di-chloro-methane-water (1/2/2), [Ni(C25H29N5)2]Cl2·2CH2Cl2·2H2O, represents a nickel(II) bis-(pyridine di-imine) complex with electron-donating di-methyl-amino-phenyl substituents. The complex crystallizes as a water/di-chloro-methane solvate with Z' = 2, thus the asymme...