Some Synthetic Studies Related to Perylenequinones

✍ Scribed by Zhao, Chen ;Zhang, Xu-Sheng ;Zhang, Pang

• Book ID: 102900940
• Publisher: John Wiley and Sons
• Year: 1993
• Tongue: English
• Weight: 741 KB
• Volume: 1993
• Category: Article
• ISSN: 0947-3440
• DOI: 10.1002/jlac.199319930107

✦ Synopsis

Abstract

Two closely related routes to dimethyl 3,10‐dihydro‐2,11‐dihydroxy‐4,6,7,9‐tetramethoxy‐3,10‐dioxo‐1,12‐perylenediacetate (10), one involving Ullmann phenol coupling and the other by double oxidative coupling are described. Regioselective demethylation of 10 followed by methylation or vice versa yields dimethyl 3,10‐dihydro‐4,9‐dihydroxy‐2,6,7,11‐tetramethoxy‐3,10‐dioxo‐1,12‐perylenediacetate (22) which, except for its side chains, structurally resembles some of the natural perylenequinones.