Syntheses and structures of 1,3,2-dibenzo(d,f) and dinaphtho(α,β )(d.f)-dioxaborepin-2-β-diketonates
SHAN ZIXING;ZHAO DEJIE;HU ZHENGPING;ZHANG GUOMIN
Chin. J. Org. Chem. . 1989, (3): 233 -236 .