Dearomatization of Naphthalene: Novel Stereoselective Cyclization Reactions Promoted by Osmium(II)
作者:Mark D. Winemiller、W. Dean Harman
DOI:10.1021/jo9916737
日期:2000.3.1
A series of Michael acceptors has been combined with the Os(II) eta(2)-naphthalene complex (1) to form stable 1H-naphthalenium species. Under acidic conditions, these complexes undergo ringclosure at C2 to form the phenanthrenone core. In contrast, the corresponding 1-methylnaphthalene complex (15) upon addition of MVK at C8 undergoes ringclosure at C5 to form a bridged tricyclic complex (18). Michael