2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → 4-Hydroxy-2-(pyridin-4-yl)quinazoline, 4-(4-Hydroxyquinazolin-2-yl)pyridine

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Reaction Steps

To a flask of anthranilamide (1 mmol) was added 4-pyridine carboxaldehyde (1 mmol) to form a paste. Followed by the careful addition of 2,3 dichloro-5,6-dicyano-1,4-benzoquinone, (0.5 mmol), the well blended mixture was microwaved in a beaker with silica for 9 min. To the resultant solid was added methanol with subsequent sonication. The collected filtrate was concentrated and dried in vacuo to afford the desired product as a brown solid (85% yield). 1H NMR (400 MHz, d6-DMSO): δ 12.80 (br s, 1H), 8.80 (d, 2H), 8.20 (d, 1H), 8.12 (d, 2H), 7.88 (t, 1H), 7.80 (d, 1H), 7.60 (t, 1H). MS (EI) for C13H9N3O: 224 (MH+).

Provenance & Evidence