We present a new class of catalysts based on the combination of N,N′-diaryl(thio)ureas and weak silicon Lewis acids (e.g., SiCl 4). Such silicon-(thio)urea catalysts effectively catalyze the stereospecific rearrangement of epoxides to quaternary carbaldehydes.
Hrdina, Radim,Mueller, Christian E.,Wende, Raffael C.,Lippert, Katharina M.,Benassi, Mario,Spengler, Bernhard,Schreiner, Peter R.
p. 7624 - 7627
(2011/06/26)
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