The synthesis of 6,7-benzo-4,9-oxido[11]
โ
Haru Ogawa; Hidefumi Kato; Mitutaka Yoshida
๐
Article
๐
1971
๐
Elsevier Science
๐
French
โ 203 KB
Planar conjugated ketones having a ring larger than a seven membered one are potentially interesting macrocycles, because these compounds are expected to be aromatic if they contain a (4n+3) membered ring and nonaromatic if they contain a (4n+l) membered ring. To these compounds, F. Sondheimer') pro