Tetrahedron Letters p. 1091 - 1094 (1997)
Update date:2022-08-04
Topics:
Bach, Jordi
Berenguer, Ramon
Garcia, Jordi
Loscertales, Teresa
Manzanal, Judith
Vilarrasa, Jaume
A new synthetic route to C2-symmetric chiral 1,4-diols based on the borane-mediated oxazaborolidine-catalysed reduction of 2-ene-1,4-diones (2), of 2-yne-1,4-diones (3), and/or of Co-complexed diketones 4 is described. Good to excellent enantio- and diastereoselectivities have been obtained in the reduction of diketones 3 and 4, catalysed by oxazaborolidines 6 and 5, respectively.
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