Va. Soloshonok et al., HIGHLY DIASTEREOSELECTIVE ALDOL REACTION OF FLUOROALKYL ARYL KETONES WITH METHYL ISOCYANOACETATE CATALYZED BY SILVER(I) TRIETHYLAMINE/, Tetrahedron letters, 35(7), 1994, pp. 1055-1058
Transition metal-catalyzed aldol reaction of aryl fluoroalkyl ketones
with methyl isocyanoacetate was found to proceed with high diastereose
lectivity that is in sharp contrast to the very poor diastereoselectiv
ity in the similar reaction of nonfluorinated ketones. The superiority
of AgClO4/NEt(3) as a homogeneous catalyst (1 mol %) for these reacti
ons was disclosed.