Suzuki–Miyaura homocoupling of naphthyl triflates using bis(pinacolato)diboron: approaches to the biaryl skeleton of crisamicin A
作者:Margaret A. Brimble、Michelle Y. H. Lai
DOI:10.1039/b303070a
日期:——
base potassium phosphate is required in order to promote subsequent coupling of the naphthylboronate with a second equivalent of the naphthyl triflate. Attempts to convert binaphthyl 35 into bis-acetylnaphthalene 14, a key intermediate for the synthesis of the dimeric pyranonaphthoquinone antibiotic crisamicin A 2, via double Friesrearrangement of bis-acetate 37 derived from binaphthyl 35, were unsuccessful