The preliminary phytochemical screening of the root of Clerodendrum baronianum and antimicrobial activities of the crude extract in various solvent systems were determined. A pure colorless needle shape crystal compound (CB) was separated by thin layer and column chromatographic methods. The yield is found to be (10.3 mg %) based upon the ethyl acetate crude extract. The melting point of this c...

The natural abundant two-dimensional exchange CNMR revealed the very close proximity between the carboxyl carbon of PMAA and carbonyl carbon of PVAc in the miscible PMAA/PVAc = 3/1 blend. The estimated distance between the CO carbons is approximately 0.37 nm. This close distance is induced by a strong hydrogen bond between the hydrogen of carboxyl group for PMAA and the oxygen of carbonyl group...

In this research, a green, operationally simple, highly efficient and facile cascade Biginelli reaction using various aromatic aldehydes, ethyl acetoacetate, and urea/thiourea has been developed. First, the ionic liquid was prepared from the reaction of 1-methyl-2-pyrolidone with methane sulfonic acid. Then, this ionic liquid was applied as an acidic catalyst in the synthesis of dihydropyrimidi...

N-sulfonic acid pyridinium -4-carboxylic acid chloride {[Pyridine-N-SO3H-4-COOH]Cl} was synthesized, identified and applied as an effective catalyst for the preparation of pyrido[2,3-d:6,5-d]dipyrimidines by the condensation reaction of various aldehyde with 2-thiobarbituric acid and ammonium acetate under solvent-free conditions.The structure ofcatalyst was studied...

In this paper, an environmentally benign access to synthesize Bis(pyrazol-5-ol) derivatives was developed through the one pot pseudo five component condensation reaction of phenyl hydrazine with ethyl acetoacetate, and different aryl/heteroaryl aldehydes using morpholinium glycolate as the homogeneous reusable catalyst under solvent-free conditions at 80 °C. Further, the ionic liquid was prepar...

In this paper, an environmentally benign access to synthesize Bis(pyrazol-5-ol) derivatives was developed through the one pot pseudo five component condensation reaction of phenyl hydrazine with ethyl acetoacetate, and different aryl/heteroaryl aldehydes using morpholinium glycolate as the homogeneous reusable catalyst under solvent-free conditions at 80 °C. Further, the ionic liquid was prepar...

In this work, an eco-friendly procedure for the preparation of 2,3-dihydroquinazoline-4(1H)-ones was developed by condensation reaction of benzylic and heterocyclic aldehydes with 2-aminobenzamide in the presence of catalytic amounts of cyanuric chloride (2,4,6-trichloro-1,3,5-triazin) as an available and inexpensive organo-catalyst under aqueous media as a green conditions. The new co...

Functionalization of polyolefins has been proven to be a promising way fine-tune their properties, among which, improved thermal stability is crucial for high performance in end-use applications. However, it still remains academia, as some important issues need resolved this methodology move towards industrial scale-up, the most them being development one-step processes. This work focuses speci...