Inventor

PRASAD VIDYANATHA A

US37 patents

⚠️ This page may combine multiple inventors who share the name “PRASAD VIDYANATHA A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

PRASAD VIDYANATHA A

BAYER AG

Process for preparing phosphorodichlorido-dithioates by reacting alkylmercaptans with phosphorus trichloride in the presence of sulfur

Process for the manufacture of sulfonylaminocarbonyl triazolinones in the presence of xylene as solvent

Process for the manufacture of sulfonylaminocarbonyl triazolinones and salts thereof under pH controlled conditions

Processes for the production of methyl dithiocarbazinate

Synthesis of sulfoxides via selective oxidation of sulfides with a perborate or a percarbonate

Process for the manufacture of thiophosphoryl chloride

Amine catalyzed reaction in the production of thiophosphoryl chloride

Process for the synthesis of O,O-dimethyl phosphoroamidothioate

Process for producing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate and granular formulations thereof

Purification of O,S-dimethyl phosphoramidothioate

Process for making 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole using methyldithiocarbazinate with trifluoroacetic acid with selective removal of 2,5-bis(methylthio)-1,3,4-thiadiazole

Process for the production of S,S,S-tributylphosphorotrithioate

Synthesis of 2-(methysulfonyl)-5-(trifluoro-methyl)-,3,4-thiadiazole via oxidation of 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole with glacial acetic acid

Synthesis of N-(4-fluorophenyl)-2-hydroxy-N-(1-methylethyl)acetamide using sodium formate

Process for producing N-(4-fluorophenyl)-N-(1-methylethyl)-2- (5-trifluoromethyl-1,3,4-thiadiazol-2-yl)oxy!acetamide

Process for the manufacture of sulfonylaminocarbonyl triazolinones and salts thereof

Process for the preparation of 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole (TDA sulfone)

Process for preparing methyl dithiocarbazinate by reacting methyl bromide with the reaction product of carbon disulfide, hydrazine and an adjunct base

Approach to the conversion of 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole (TDA) to 2-(methylsulfonyl)-5-(trifluoromethyl)-1,3,4-thiadiazole (TDA sulfone)

Process for preparing 2-(methylthio)-5-(trifluoromethyl) -1,3,4-thiadiazole using methyldithiocarbazinate and a molar excess of trifluoroacetic acid with recovery of trifluoroacetic acid

Process for preparing methyl dithiocarbazinate by reacting methyl bromide with the reaction product of carbon disulfide and hydrazine in an aqueous medium

Process for isolating N-(4-fluorophenyl)-N-(1-methylethyl)-2- (5-trifluoromethyl)-1,3,4-thiadiazol-2-yl)oxy!acetamide

Process for making 2-(methylthio)-5(trifluoromethyl)-1,3,4,-thiadiazole using methyldithiocarbazinate with trifluoroacetic acid with selective removal of 2,5-bis(methylthio)-1,3,4-thiadiazole

Process for making O,S-dimethyl phosphoramidothioate

Process for producing stable, low odor S,S,S-tributylphosphorothrithiote

Amine catalyzed reaction of alkyl mercaptans with thiophosphoryl chloride

Process for making N-(4-fluorophenyl)-N-(1-methylethyl)-2- (5-trifuloromethyl)-1,3,4-thiadiazol-2-yl)oxy!acetamide using an aprotic, aromatic solvent

Process for the manufacture of substituted triazolinones

Preparation of dithiophosphoric acid diester-halides

Process for preparing phosphorodichloridodithioates by reacting alkyl mercaptans with PCI3 PSCI3 and sulfur

Process for producing 2-(methylthio)-5-(trifluoromethyl)-1,3,4-thiadiazole using methyldithiocarbazinate and trifluoroacetic acid

MILES INC

Process for the purification of substituted 4-amino-1,2,4-triazine-5-ones

Process for producing stable, low odor S,S,S-tributylphosphorotrithioate

(unassigned)

Conversion of N-(4-fluorophenyl)-2-hydroxy-N-(1-methylethyl) acetamide acetate to N-4-fluorophenyl)-2-hydroxy-N-(1-methylethyl) acetamide

MOBAY CORP

Preparation of phenoxy-triazolyl-pinacol-ones

MOBAY CHEMICAL CORP

Production of O,O-dialkyl-S-(benzazimidomethyl)-thiolphosphoric acid esters

BAYER CROPSCIENCE LP

Method for preparing O,O-dialkyl S-[2-(alkylthio)alkyl] phosphorodithioates