ChemInform Abstract: PREPARATION AND LIGHT INDUCED REACTIONS OF SUBSTITUTED 1,4‐BENZOQUINONES

Abstract

Die aus den entsprechenden 2,5‐Dihydroxyverbindungen (I) und (II) erhältlichen 1,4‐Benzochinone (III) und (IV) (keine Aush‐Angabe) liefern bei Bestrahlung wieder ihre Ausgangsverbindungen.

Eco-Friendly Synthesis and Antiproliferative Evaluation of Some Oxygen Substituted Diaryl Ketones

“…This compound was prepared from quinone 1 and 2-methylbenzaldehyde in 52 and 80% yield following methods A and B, respectively; yellow solid, mp 104–105 °C (lit. [47]: 106–108 °C). IR (KBr) ν máx cm –1 : 3287 (O-H), 1638 (C=O); 1 H-NMR (CDCl 3 ): δ 2.29 (s, 3H, Me), 4.76 (s, 1H, 5-OH), 6.71 (d, 1H, J = 3.0 Hz, 6-H), 6.95 (d, 1H, J = 8.9 Hz, 3-H), 7.04 (dd, 1H, J = 8.9, 3.0 Hz, 4-H), 7.27 (m, 3H, 3'-H + 4'-H + 6'-H), 7.39 (m, 1H, 5’-H), 11.81 (s, 1H, 2-OH); 13 C-NMR (CDCl 3 ): δ 19.6, 118.1, 119.3, 119.5, 125.4, 125.5, 127.3, 130.2, 130.9, 135.4, 137.7, 147.4, 157.5, 203.9; HRMS (M + ): m/z calcd for C 14 H 12 O 3 : 228.07864; found: 228.07767.…”