Lanthanide(III) trifluoromethanesulfonates (triflates), such as Yb(OTf)3, Nd(OTf)3 and Gd(OTf)3, catalyze in a extraordinarily efficient way the aminolysis of 1,2-epoxides, affording the corresponding β-amino alcohols, at room temperature and in a non-protic solvent (CH2Cl2 or toluene), in very good yields. The reactions are completely anti stereoselective and highly regioselective.
265. Di-N-substituted 2-halogenoethylamines. Part VI. NN-dialkyl-(or N-alkyl)-2-alkyl(or aryl or arylalkyl) derivatives: synthesis, reactivity, and pharmacology
作者:N. B. Chapman、D. J. Triggle
DOI:10.1039/jr9630001385
日期:——
Regioalternating selectivity in the metal salt catalyzed aminolysis of styrene oxide