Regiocontrolled benzannulation of diaryl
✍
Yoshinori Nishii; Taichi Yoshida; Yoo Tanabe
📂
Article
📅
1997
🏛
Elsevier Science
🌐
French
⚖ 216 KB
Aryll(aryl2)(gem-dichlorocyclopropyl)methanols 1 underwent alternative benzannulation to give "unsymmetrically" substituted l-(aryll)-4-chloronaphthalenes 21A catalyzed by SnCI4 or TiCI4 and to give 1-(aryl2)-4-chloronaphthalenes 2/B catalyzed by silyl triflates with good to excellent selectivities.