Enantioselective synthesis of fluorene derivatives by chiral phosphoric acid catalyzed tandem double Friedel-Crafts reaction.
Sun
Feng-Lai
FL
State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China.
Zeng
Mi
M
Gu
Qing
Q
You
Shu-Li
SL