A reaction of 3-arylcyclobutanones with anthracene in the presence of TiCl4 gave 14-aryl-9,10-dihydro-9,10-butanoanthracen-12-ones as a formal [4 + 4] cycloadduct of anthracenes with a C4 unit formed by cleaving the more substituted C2C3 bond of cyclobutanones. On the other hand, activation of 3-arylcyclobutanones with TfOH in the absence of nucleophiles gave 2-tetralones with skeletal rearrangement
Cyclopropyl aryl amide derivatives and uses thereof
申请人:Bois Daisy Joe Du
公开号:US20090093525A1
公开(公告)日:2009-04-09
Compounds of the formula:
wherein Ar
1
, Ar
2
, R
1
and R
2
are as defined herein. Also provided are pharmaceutical compositions, methods of using, and methods of preparing the subject compounds.