N. R. AYYANGAR

Catalytic Reduction of Nitroarenes with Hydrazine Hydrate in Suitable Solvents

N. R. AYYANGAR, A. G. LUGADE, Pandurang V. Nikrad et al. · Synthesis · 1981 · 45 citations

Hydrazine Hydrate, Chemical Engineering, Catalytic Application +7

Polycyclic compounds Part VII. Synthesis laser characteristics and dyeing behaviour of 7-diethylamino-2H-l-benzopyran-2-ones

N. R. AYYANGAR, K.V. Srinivasan, Thomas Daniel · Dyes and Pigments · 1991 · 37 citations

Chemical Lasers, Engineering, Heterocyclic +7

Facile One-Pot Synthesis of 2,1,3-Benzoxadiazole<i>N</i>-Oxide (Benzofuroxan) Derivatives Under Phase-Transfer Catalysis

N. R. AYYANGAR, Sushil Kumar, Kumar V. Srinivasan · Synthesis · 1987 · 34 citations

Several 2,1,3-Benzoxadiazole N-oxide, Chemical Engineering, Engineering +9

Facile Transfer-Reduction of Nitroarenes to<i>N</i>Arylhydroxylamines with Hydrazine in the Presence of Raney Nickel

N. R. AYYANGAR, K. C. Brahme, U. R. Kalkote et al. · Synthesis · 1984 · 33 citations

Chemical Engineering, Bioorganic Chemistry, Engineering +11

Separation of eight alkaloids and meconic acid and quantitation of five principal alkaloids in gum opium by gradient reversed-phase high-performance liquid chromatography

N. R. AYYANGAR, S.R. Bhide · Journal of Chromatography A · 1988 · 27 citations

Principal Alkaloids, Gas Chromatography, Medicine +11