Present invention relates to a process for preparing halquinol comprising reacting glycerin, 2-amino-4, 6-dichlorophenol and sulfuric acid with 2-nitro-4-chlorophenol and acetic acid wherein 2-nitro-4-chlorophenol is taken within the range of 0.7 time to equal weight quantity of 2-amino-4,6-dichlorophenol. The obtai...

Present invention provides an efficient process which provides coumarin in good purity and good yield. The process comprises introducing the mixture of salicylaldehyde, sodium acetate in acetic acid and acetic anhydride in a reactor maintained at the temperature range of 235°C to 245°C, collecting portion of hot liq...

EFFICIENT, ECONOMIC AND ECO-FRIENDLY PROCESS FOR THE PREPARATION OF 4-BROMO-ORTHO-PHENYLENE-DIAMINE Formula I The present invention relates to an efficient, economic and eco-friendly process for preparing 4-bromo-ortho-phenylene-diamine (compound of structural formula I) as shown below. Further, the process giv...

The mentioned is a three step process for preparation of alkali metal iodides particularly to sodium iodide and potassium-iodide. In first step of reaction, ammonium compounds like ammonium hydroxide, ammonium carbonate and ammonium bicarbonate and iodine are reacted with each other in presence of catalyst like hydr...

The present invention discloses a method of synthesizing Terminal dihaloalkane of formula (1) by reacting alkane dihalide with metal iodides in presence of catalytic amount of tetra butyl ammonium iodide in polar solvent or mixtures of polar solvents and isolation of the same with more than 99% purity. Xl(CH2)nX...

Disclosed herein is a process for preparation of 2-hydroxy-3, 5-diiodo benzoic acid with high yield and purity which comprises reacting salicylic acid in an alcohol with iodine monochloride, wherein iodine monochloride is generated insitu from the mixture of iodine or a salt of hydro iodic acid and chlorinating agen...

The invention discloses synthesis of β-ketoester derivatives of formula (I) Wherein, Rl alkyl group containing C1-C8 carbon atoms or aromatic ring; R2 is alkyl group containing C1-C18 carbon atoms, alkenyl group or phenyl group, by chelate mediation and subsequent hydrolysis using diluted mineral acid. ...

The present invention provides a process for producing Benzeneseleninic Anhydride (BSA) by refluxing Benzeneseleninic acid in toluene in order to remove H2O; cooling to room temperature, filtering and vacuum drying.

The present invention provides a process for producing 5-iodo-2-methylbenzoic acid through iodination of acetic acid solution, as essential steps, a reaction step of iodinating acetic acid in the presence of O-toluic acid, Potassium per sulphate, Iodine and Sulphuric acid, wherein the process comprises of ionization...

Present invention provides a process for preparing diiodoalkane by reacting dihaloalkane with metal iodide in presence of catalyst tetra butyl ammonium iodide. Dihaloaikanes ranges from Ci to C12 alkanes. The preferable solvent for this process is polar solvent or their mixture. Temperature ranging from 135°C to 140...

An improved method for preparation of 2,3-dihydroxy-I)2-benzisothiazol-3-one-I,l-dioxide from alky! anthranilate and alkali metal salt of nitrous acid via formation of respective diazonium salt. This diazonium salt is reacted with in-situ generated sulphur dioxide. The organic phase is treated with an oxidizing agen...