Yumiko Suzuki   Tomonori Toyota   Akira Miyashita   Masayuki Sato   
CHEMICAL & PHARMACEUTICAL BULLETIN 54(12) 1653-1658 2006年12月 [査読有り]
Xanthones and acridones were synthesized from 3,4-difluoronitrobenzene and 2-fluorobenzaldehydes in two or three steps. The key step was nucleophilic aroylation catalyzed by imidazolidenyl carbene. The nucleophilic aroylation of 3,4-difluoronitrob...