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SBSA as a New and Efficient Catalyst for the One-Pot Green Synthesis of Benzimidazole Derivatives at Room Temperature
silica boron sulfonic acid (SBSA) was easily prepared and used as a new and efficient solid acid catalyst for the synthesis of benzimidazole derivatives with high isolated yields. Various substituted
Influence of chemistry in immobilization of cobra venom phospholipase A2: implications as to mechanism.
The results suggest that the enzyme activity lost upon immobilization is a result of the inherent chemical modification of the enzyme and that enzyme oligomerization and interfacial recognition are not cause-effect phenomena.
A study on the functional subunits of phospholipases A2 by enzyme immobilization.
The results indicated that pig pancreatic and Naja naja phospholipases A2 are active as monomers, with the dimeric form as the fully active one.
Facile Method of Quinoxaline Synthesis Using Phenol as a New, Efficient and Cheap Catalyst at Room Temperature
Abstarct A simple, h ighly efficient and green procedure for the condensation of aryl and alkyl 1,2-diamines with α-diketones in the presence of catalytic amount of phenol(20 mo l%) at roo m
New 3H-Indole Synthesis by Fischer’s Method. Part I
Methyl indolenines (4a-c) and (5a-c) were prepared in high yield by a Fischer indole synthesis reaction of o,m-tolylhydrazine hydrochlorides (1a-b) with isopropyl methyl ketone (2) and
Carbodiimide modification enhances activity of pig pancreatic phospholipase A2.
The modified pig enzyme showed pre-micellar activation on monomeric diheptanoyl-lecithin, and either reduced or increased activities on mixed micelles of bile salt with egg phosphatidylcholine, depending on the composition of the micells.
Regioselective Thiocyanation of Aromatic and Heteroaromatic Compounds by Using Boron Sulfonic Acid as a New, Efficient, and Cheap Catalyst in Water
Highly efficient regioselective thiocyanations of indoles and N,N-disubstituted anilines are achieved via a green and simple protocol using boron sulfonic acid (BSA) as a new catalyst and KSCN/H2O2
Characterization of the Gypsum Composite for Electrical Conductivity
In the nature, calciu m sulfate is found as gypsum (CaSO₄ , 2H₂O) in nonconductor compound which converting to plaster by the effect of heat and water loss. Into the autoclave, under pressure Alpha &