SYNTHESIS OF NEW ARYL AND HETEROAROMATIC SUBSTITUTED PYRIDINES, PYRAZOLES, PYRIMIDINES AND PYRAZOLO[3,4-D]PYRIDAZINES

Syntheses of fluorescent dyes. IX. New 4‐hydroxycoumarins, 4‐hydroxy‐2‐quinolones, 2<i>H</i>,5<i>H</i>‐Pyrano[3,2‐<i>c</i>]benzopyran‐2,5‐diones and 2<i>H</i>,5<i>H</i>‐Pyrano[3,2‐<i>c</i>]quinoline‐2,5‐diones

Andreas Knierzinger, Otto S. Wolfbeis · Journal of Heterocyclic Chemistry · 1980 · 59 citations

New 4‐Hydroxycoumarins, Compounds 21‐R, Abstract 7‐Substituted +14

A simple regioselective synthesis of pyrimido[1,2‐<i>a</i>]benzimidazoles

Shin‐Shyong Tseng, Joseph Epstein, Herbert J. Brabander et al. · Journal of Heterocyclic Chemistry · 1987 · 58 citations

Enantioselective Synthesis, Engineering, Natural Sciences +11

New synthetic approaches to condensed pyridazinones: alkylpyridazinyl carbonitriles as building blocks for the synthesis of condensed pyridazinones

Hanan Al-Awadhi, Fatima Al‐Omran, Mohamed H. Elnagdi et al. · Tetrahedron · 1995 · 53 citations

Building Blocks, New Synthetic Approaches, Organic Chemistry +5

A facile synthesis of 6‐alkoxy‐2,4‐diaryl‐5‐cyanopyridine

M. M. AL‐ARAB · Journal of Heterocyclic Chemistry · 1989 · 40 citations

Substituted Pyridine, Chemical Engineering, Engineering +8

The reaction of β‐aminoenones with substituted acetonitriles. Regiospecific synthesis of 2(1H)‐pyridones

A. Alberola, Celia Andrés, Alfonso González Ortega et al. · Journal of Heterocyclic Chemistry · 1987 · 25 citations

High Yields, Substituted Acetonitriles, Engineering +10