Macrophomina phaseolina is a highly problematic fungus that causes diseases in hundreds of plant species. In order to search for an alternative chemical fungicides the control this devastating pathogen, leaf extract Tabernaemontana divaricata was assessed M. phaseolina. Five concentrations methanol viz. 1, 2, 3, 4 and 5% (w/v), were checked against All these significantly suppressed fungal grow...

Methyl tetra - 0-methyl- ?-D- glucopyranoside is stereoselectively prepared from tetramethyl-D- glucopyranose by using (MeI+NaH) in toluene (86%) or cyclohexane (85%), while its ?- isomer is best synthesized in hexamethyl phosphoramide (64%). Similarly, methyl tetra-o-methyl-?- D-mannopyranoside is synthesized in cyclohexane (80%), while its ?- isomer is predominantly prepared by (MeI+n-Bu...

In the title compound, C(12)H(15)NO(6)S, the aromatic ring is oriented at dihedral angles of 64.76 (11) and 56.42 (13)° with respect to the planar methyl ester unit and the SO(2) group, respectively. The dihedral angle between the SO(2) group and the planar methoxy-carbonyl-methyl group is 50.42 (14)°. Intra-molecular C-H⋯O hydrogen bonding results in the formation of an eight-membered ring. In...

The title compound, C(16)H(16)N(2)O(2)S(2), has been synthesized by several different high-yield routes, and has been encountered as a co-product in a number of reaction pathways, ever since it became of inter-est to our research program over 30 years ago. We now confirm the proposed mol-ecular structure in which the mol-ecule exhibits a twofold axis of symmetry through the mid-point of the S-S...

In the title compound, C(10)H(13)NO, the N atom and the methyl group are almost coplanar with the benzene ring to which they are bonded [deviations of 0.131 (1) and 0.038 (1) Å, respectively, from the ring plane]. In the crystal structure, inter-molecular C-H⋯O hydrogen bonds form a three-dimensional network. Mol-ecules are stacked parallel to the b-axis direction.

In the title compound, C(9)H(10)ClNO, the non-H atoms, excluding the phenyl group, are almost coplanar (r.m.s. deviation of the non-H atoms = 0.1015 Å). The dihedral angle formed between this plane and the benzene ring is 87.07 (5)°. Weak inter-molecular C-H⋯O inter-actions help to stabilize the packing.

There are three independent mol-ecules in the asymmetric unit of the title compound, C(9)H(11)NO(3), which are connected by O-H⋯O hydrogen bonds, forming an R(3) (3)(15) ring. The dihedral angles between the planes of the benzene and amide groups are 75.16 (3), 71.47 (3) and 70.56 (3)°. The hy-droxy O atom lies 0.912 (3), 1.172 (2) and 1.339 (2) Å from the mean plane of the corresponding benzen...

five new aromatic poly(amide-imide)s (5a-e) were synthesized by direct polycondensationreaction of n-(4-carboxy phenyl) trimellitimide (3) with five aromatic diamines (4a-e) by usingtriphenyl phosphite in n-methyl-2-pyrrolidone (nmp) and pyridine at solution containingdissolved cacl2. all of the polymers were obtained in quantitative yields with inherentviscosities between 0.29-0.40 dl/g. the r...

The title compound, C(20)H(18)N(2)O, is composed of three aromatic rings, the dihedral angles between the phenyl and benzamide rings, and between the benzamide and aniline rings being 59.86 (9) and 46.57 (10)°, respectively. The mol-ecular structure is stabilized by an intra-molecular N-H⋯O hydrogen bond involving the amino H atom and the benzamide carbonyl O atom. In the crystal structure, C-H...