2-Chloro-N-(2,3-dichloro­phen­yl)benzamide

Two independent mol­ecules comprise the asymmetric unit in the title compound, C13H8Cl3NO, each with the amide N—H and C=O bonds trans to each other. The mol­ecules are linked into chains through inter­molecular N—H⋯O and N—H⋯Cl hydrogen bonds

2,2-Dichloro-N-(4-methyl­phenyl­sulfonyl)acetamide

The N—H and C=O bonds in the title compound, C9H9Cl2NO3S, are trans to each other, similar to what is observed in 2,2,2-trimethyl-N-(phenyl­sulfon­yl)acetamide and 2,2,2-trimethyl-N-(4-methyl­phenyl­sulfon­yl)acetamide. The bond parameters in the title compound are also similar to those in the aforementioned two structures. N—H⋯O hydrogen bonds connect the mol­ecules into chains running along the a axis

2,2,2-Trimethyl-N-(4-methyl­phenyl­sulfon­yl)acetamide

The bond parameters and conformations of the N—H and C=O bonds of the SO2—NH—CO—C group in the title compound, C12H17NO3S, anti to each other, are similar to what has been observed in related structures. The benzene ring and the SO2—NH—CO—C group make a dihedral angle of 71.2 (1)°. Inter­molecular N—H⋯O hydrogen bonds link the mol­ecules into centrosymmetric dimers

Crystal structure of 1-benzylsulfonyl-1,2,3,4-tetrahydroquinoline

SJ thanks the Vision Group on Science and Technology, Government of Karnataka, for the award of a major project under the CISE scheme (reference No. VGST/CISE/GRD192/2013-14). BSPM thanks Rajegowda, Department of Studies and Research in Chemistry, UCS, Tumkur University, Karnataka 572 103, India, for his support.Peer reviewedPublisher PD

N-(4-Chloro­phenyl­sulfon­yl)-2,2,2-tri­methyl­acetamide

In the crystal structure of the title compound (N4CPSTMAA), C11H14ClNO3S, the conformations of the N—H and C=O bonds in the amide group are anti to each other, similar to those observed in N-phenyl­sulfonyl-2,2,2-trimethyl­acetamide (NPSTMAA) and 2,2,2-trimethyl-N-(4-methyl­phenyl­sulfon­yl)acetamide (N4MPSTMAA). The bond parameters in N4CPSTMAA are similar to those in NPSTMAA, N4MPSTMAA, N-aryl-2,2,2-trimethyl­acetamides and 4-chloro­benzene­sulfonamide. The –SNHCOC– unit including the amide group is essentially planar and makes a dihedral angle of 82.2 (1)° with the benzene ring, comparable to the values of 79.1 (1) and 71.2 (1)° in NPSTMAA and N4MPSTMAA, respectively. The mol­ecules in N4CPSTMAA are linked into a chain by inter­molecular N—H⋯O hydrogen bonds

2-Chloro-N-(3,5-dichloro­phenyl)­benzamide

The amide group in the structure of the title compound (N35DCP2CBA), C13H8Cl3NO, is trans-planar, similar to that observed in N-(3-chloro­phen­yl)benzamide, N-(3,5-dichloro­phen­yl)benzamide, 2-chloro-N-phenyl­benzamide and other benzanilides. The C=O bond in N35DCP2CBA is anti to the ortho-chloro substituent in the benzoyl ring. The amide group makes dihedral angles of 63.1 (12) and 31.1 (17)°, respectively, with the benzoyl and aniline benzene rings, while the dihedral angle between the two benzene rings is 32.1 (2)°. The mol­ecules are linked into chains along the b axis by N—H⋯O hydrogen bonds

Characterization, hemolysis and multidrug resistance among Aeromonas spp. isolated from Bhavani river, Erode, South India

A total of 87 strains of Aeromonas spp. were identified biochemically. The strains were isolated from 50 samples of water from Bhavani river Erode, Tamil Nadu, India. In the present study among 87 Aeromonas spp. the prevalence strain was identified as A.hydrophila (60.9%), while the other strains belonged to the species A. sobria (20.7%), A. caviae (11.5%) and A.salmonicida (6.9%). The virulence factors like hemolysin, lipase, and serine protease were present in 96%, 93% and 94% of the strains respectively. Antibiotic susceptibility of Aeromonas spp. was determined by disc diffusion method. All Aeromonas spp. were examined for resistance against 16 antibiotics. All strains showed 100% of resistance to Ampicillin,Carbenicillin and Cephalothin. The highest resistances encountered were 91.9% to streptomycin,90.8% to polymyxin-B, 85% to rifampicin while the rest were under 50%.In contrast all the strains were sensitive to cefotaxime.The present work highlights the important incidence of Aeromonas spp., with virulence potential and antimicrobial resistance, isolated from river bhavani

2-Methyl-N-(3-methyl­phen­yl)benzamide

In the structure of the title compound (N3MP2MBA), C15H15NO, the conformation of the N—H bond is anti to the meta-methyl substituent in the aniline ring and that of the C=O bond is syn to the ortho-methyl substituent in the benzoyl ring, while the conformations of the N—H and C=O bonds are anti to each other. The bond parameters in N3MP2MBA are similar to those in 2-methyl-N-phenyl­benzamide, N-(3,4-dimethyl­phen­yl)benzamide and other benzanilides. The amide group, –NHCO–, makes a dihedral angle of 55.2 (7)° with the benzoyl ring, while the dihedral angle between the two benzene rings (benzoyl and aniline) is 36.2 (1)°. N—H⋯O hydrogen bonds give rise to infinite chains running along the b axis of the crystal structure

3-Methyl-N-phen­ylbenzamide

The conformation of the C=O bond in the structure of the title compound, C14H13NO, is anti to the meta-methyl substituent in the benzoyl ring. The conformations of the N—H and C=O bonds in the amide group are also anti to each other. The asymmetric unit of the structure contains two mol­ecules. The bond parameters are similar to those in N-(phen­yl)benzamide, 2-methyl-N-(phenyl)­benz­amide and other benzanilides. The amide group –NHCO– forms dihedral angles of 20.97 (34) and 45.65 (19)° with the benzoyl rings, and 41.54 (25) and 31.87 (29)° with the aniline rings, in the two independent mol­ecules. The benzoyl and aniline rings adopt dihedral angles of 22.17 (18) and 75.86 (12)° in the two independent mol­ecules. In the crystal structure, mol­ecules are linked into chains by inter­molecular N—H⋯O hydrogen bonds