Kumar Ranabir Sur

Synthesis of Coumarin Derivatives from 4-Oxo-4H-1-benzopyran-3-carboxaldehyde via 3-(Arylaminomethylene)chroman-2,4-dione

Chandrakanta Bandyopadhyay, Kumar Ranabir Sur, Ranjan Patra et al. · Tetrahedron · 2000 · 42 citations

Organic Chemistry, Derivative (Chemistry), Coumarin Derivatives +1

One-Pot Synthesis of 2-Alkyl/Arylamino-4-oxo-4<i>H</i>-1-Benzopyran-3-Carboxaldehyde from 4-oxo-4<i>H</i>-1-Benzopyran-3-Carboxaldehyde

Chandrakanta Bandyopadhyay, Kumar Ranabir Sur, Ranjan Patra et al. · Journal of Chemical Research · 2003 · 21 citations · Full text

Cl–mediated Reactions, Engineering, Biochemistry +10

Gravimetric and spectrophotometric determination of palladium, rhodium and ruthenium with thiosalicylamide

Kumar Ranabir Sur, S.C. Shome · Analytica Chimica Acta · 1969 · 20 citations

Spectrophotometric Determination, Inorganic Chemistry, Chemical Engineering +8

Reactions of 4-Oxo-4H-1-benzopyran-3-carboxaldehydes with Pentane-2,4-dione in Acidic Medium—a New Route to Dihydroxybenzophenone Derivatives

Chandrakanta Bandyopadhyay, Kumar Ranabir Sur, Ranjan Patra · Journal of Chemical Research Synopses · 1998 · 15 citations

Chemical Engineering, Derivatives, Engineering +15