Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Ashutosh V. Joshi"'
Autor:
Gaik-Khuan Chuah, Stephan Jaenicke, Ashutosh V. Joshi, Yoel Sasson, Sudip Mukhopadhyay, Nida Qafisheh
Publikováno v:
Industrial & Engineering Chemistry Research. 46:3016-3023
Potassium phosphate is reported as a remarkably active and selective solid base in phase-transfer-catalyzed alkylation reactions of alkaline-sensitive substrates such as esters and halides. The performance of potassium phosphate exceeded that of comm
Publikováno v:
Synthetic Communications. 35:2715-2722
High‐yield reductive homocoupling of benzotrichloride and benzal chloride followed by consecutive reductive dechlorination to 1,2‐dichlorostilbene and stilbene is effected in the presence of sodium formate as the reducing agent and Pd/C catalysts
Publikováno v:
Synthetic Communications. 34:643-650
Aromatic and aliphatic aldehydes are selectively reduced to primary alcohols under mild conditions with potassium formate in the presence of Pd/C catalyst. The high selectivity obtained is attributed due to the presence of the basic potassium bicarbo
Publikováno v:
Advanced Synthesis & Catalysis, 344, 348-354. Wiley-VCH Verlag
The Heck reaction of chlorobenzene and substituted chlorobenzenes with styrene is performed in water using catalytic palladium on carbon. The presence of a reducing agent, a mild base, and a phase-transfer catalyst enhances the reactivity of chloroar
Publikováno v:
Tetrahedron Letters. 46:3583-3585
Thiols are oxidized to the corresponding disulfides with a mild base, anhydrous potassium phosphate, under ambient conditions in the presence of air.
Publikováno v:
Organic Process Research & Development. 8:568-570
Oxidative bromination of activated aromatic compounds using alkali metal bromide salts and aqueous nitric acid to the corresponding bromo-derivatives is achieved in a liquid−liquid, two-phase system under ambient conditions. Nitric acid offers a du
Publikováno v:
Organic Process Research & Development. 7:44-46
Reductive coupling of haloaryls and substituted haloaryls to the respective biaryls is effected in water with good selectivity, using a reducing agent such as formate salts and a base, NaOH, in the presence of a catalytic amount of PEG-400 and 5% Rh/
Publikováno v:
Organic Process Research & Development. 7:95-97
Highly selective nitration of phenol and substituted phenols to the corresponding nitro compounds is accomplished under mild conditions in a liquid−liquid two-phase system with dilute nitric acid (...
Publikováno v:
ChemInform. 37
High‐yield reductive homocoupling of benzotrichloride and benzal chloride followed by consecutive reductive dechlorination to 1,2‐dichlorostilbene and stilbene is effected in the presence of sodium formate as the reducing agent and Pd/C catalysts
Publikováno v:
ChemInform. 35
Effective chlorination of 2,3,5,6-tetrachloropyridine to pentachloropyridine was realized under mild phase transfer conditions with carbon tetrachloride and 50% NaOH or solid K 3 PO 4 . Mechanistic study of this reaction indicated the possibility of