299216-18-5Relevant articles and documents
Dual activation in asymmetric allylsilane addition to chiral N-acylhydrazones: Method development, mechanistic studies, and elaboration of homoallylic amine adducts
Friestad, Gregory K.,Korapala, Chandra Sekhar,Ding, Hui
, p. 281 - 289 (2007/10/03)
Chiral N-acylhydrazones derived from commercially available 4-benzyl-2-oxazolidinone provide a rigid, conformationally restricted template to impart facial selectivity in additions to C=N bonds. In the presence of indium(III) trifluoromethanesulfonate [In
Comparison of electrophilic amination reagents for N-amination of 2-oxazolidinones and application to synthesis of chiral hydrazones.
Shen, Yuehai,Friestad, Gregory K
, p. 6236 - 6239 (2007/10/03)
Comparison of several hydroxylamine-based electrophilic ammonia equivalents in the N-amination of 2-oxazolidinones revealed that O-(p-nitrobenzoyl)hydroxylamine (NbzONH(2)) and sodium hydride in dioxane is a superior reagent combination for this purpose. Practical preparations of a variety of chiral N-acylhydrazones by this method gave yields ranging from 45 to 95%. Methods for exchange or removal of the aldehyde component have been developed, making this a general route to chiral N-acylhydrazones of interest for asymmetric synthesis applications.
Highly stereoselective intermolecular radical addition to aldehyde hydrazones from a chiral 3-amino-2-oxazolidinone [16]
Friestad, Gregory K.,Qin, Jun
, p. 8329 - 8330 (2007/10/03)
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