Synthesis of Phenanthrene Derivatives. III.¹ 9-Methylphenanthrene

7‐(2‐Oxoalkoxy)coumarins: Synthesis and Anti‐Inflammatory Activity of a Series of Substituted Coumarins

“…The method we used is a known substitution reaction of phenolic hydroxyl group. It was reported first time in the literature with phenol and β‐naphtol and more recently with dihydroxynaphtalen .…”

Intramolecular and Intermolecular Contributions to the Barriers for Rotation of Methyl Groups in Crystalline Solids: Electronic Structure Calculations and Solid-State NMR Relaxation Measurements

“…Synthesized by photocyclization and recrystallized from methanol: mp 90.0–92.0 °C (lit . mp 91.5–92.5 °C); 1 H NMR (400 MHz, CDCl 3 , δ) 8.71 (m, 1 H), 8.63 (br d, J = 8.2 Hz, 1 H), 8.04 (br dd, J = 7.0 Hz, 2.5 Hz, 1 H), 7.79 (br dd, J = 8.2 Hz, 2.0 Hz, 1 H), 7.67–7.60 (m, 2 H), 7.59–7.22 (m, 3 H), 2.72 (br s, 3 H); GC–MS m / z (rel intensity, ion) 192 (100, M + ), 191 (52, M + – H).…”

Aromatic Cyclodehydration.

“…Several other experiments, mostly of an exploratory nature, were tried with the similar systems (VIII) in which the /3-carbon atom of the chain contained some group other than methoxyl or phenoxyl. These include the hydroxyl (45), /3-naphthoxyl (43), and diethylamino (43) cyclization to some extent. More important than any of the methods noted is the cyclization of olefin oxides.…”