N-Allyl-N-tert-butyldimethylsilylamine for chiral ligand-controlled asymmetric conjugate addition to tert-butyl alkenoatesElectronic supplementary information (ESI) available: general procedure for addition reaction, deallylation, silylation of allylamine and data for compounds. See http://www.rsc.org/suppdata/cc/b4/b405347h/
Dianion Aggregates Derived from Lithiation of <i>N</i>-Silyl Allylamine
作者:Paul G. Williard、Madeleine A. Jacobson
DOI:10.1021/ol006045m
日期:2000.9.1
[reaction: see text] Three different N-silyl-protected allylamines, i.e., N-TMS, N-TBDMS, and N-TIPS allylamine, were lihtiated by reaction with excess n-butyllithium. Crystallization of the resulting dianions and X-ray structure determination yields three uniquely different aggregates.
N-Allyl-N-tert-butyldimethylsilylamine for chiral ligand-controlled asymmetric conjugate addition to tert-butyl alkenoatesElectronic supplementary information (ESI) available: general procedure for addition reaction, deallylation, silylation of allylamine and data for compounds. See http://www.rsc.org/suppdata/cc/b4/b405347h/
The chiral ligand controlled asymmetric conjugate addition reaction of lithium N-allyl-N-(tert-butyldimethylsilyl)amide to alkenoates proceeded smoothly to give, after protodesilylation, the corresponding 3-allylaminoalkanoates with high enantioselectivities in high yields. The allyl group on the nitrogen atom was easily removable to afford 3-aminoalkanoates.