Divergent enantioselective synthesis of (P)- and (M)-dihydro[5]helicenequinones from a common tetrahydroaromatic precursor
作者:M. Carmen Carreño、Susana García-Cerrada、Antonio Urbano
DOI:10.1039/b203509j
日期:2002.6.19
The domino asymmetric Diels–Alderreaction/spontaneous sulfoxide elimination process between a vinyldihydrophenanthrene as diene and enantiopure (SS)-2-(p-tolylsulfinyl)-1,4-benzoquinone gave access to a tetrahydroaromatic pentacyclic derivative possessing central chirality which led, in a divergent way, to helically chiral (P) or (M) enantiomers of dihydro[5]helicenequinones in good to excellent
Enantiopure Dihydro-[5]-helicenequinones via Diels−Alder Reactions of Vinyl Dihydrophenanthrenes and (S<i>S</i>)-2-(<i>p</i>-Tolylsulfinyl)-1,4-benzoquinone
作者:M. Carmen Carreño、Susana García-Cerrada、Antonio Urbano