Ph. Dussault et al., Reaction of peroxyacetals with silyl ketene acetals: synthesis of 3-peroxyalkanoates and 3-peroxyalkanals, TETRAHEDR L, 41(29), 2000, pp. 5457-5460
Lewis acid-mediated reaction of monoperoxyacetals with silyl ketene acetals
(SKAs) provides an efficient approach to 3-peroxyalkanoates. Propionate SK
As react with aliphatic peroxyacetals to furnish 3-peroxy-2-methyl alkanoat
es with modest anti-selectivity. Although acetate and thioacetate SKAs are
less reactive, the latter react with unsaturated peroxyacetals to furnish p
eroxyalkenoates and -alkadienoates which undergo chemoselective reduction t
o 3-peroxyalkenals and 3-peroxyalkadienals. (C) 2000 Elsevier Science Ltd.
All rights reserved.