Regiocontrolled benzannulation of diaryl(gem-dichlorocyclopropyl)methanols for the synthesis of “unsymmetrically” substituted α-arylnaphthalenes

✍ Scribed by Yoshinori Nishii; Taichi Yoshida; Yoo Tanabe

• Book ID: 104258022
• Publisher: Elsevier Science
• Year: 1997
• Tongue: French
• Weight: 216 KB
• Volume: 38
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(97)01713-9

✦ Synopsis

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.