Ma. Brimble et al., DIASTEREOSELECTIVE ADDITION OF 2-TRIMETHYLSILYLOXYFURAN TO (S)-(-2-(P-TOLYLSULFINYL)-1,4-BENZOQUINONE()), Tetrahedron : asymmetry, 6(1), 1995, pp. 263-269
The uncatalyzed addition of 2-trimethylsilyloxyfuran to (S)-(+)-2-(p-t
olysulfinyl)-1,4-benzoquinone 1 afforded a3.4:1 ratio of the diastereo
meric adducts 2:3. Acetonitrile was found to be the optimum solvent wh
ilst the use of Lewis acid catalysts afforded lower overall yields.