Ester-Imine Condensation Mediated by Potassium<i>tert</i>-Butoxide: Synthesis of β-Lactams and 3,4-Dihydropyridin-2-ones
作者:Gianfranco Cainelli、Mauro Panunzio、Daria Giacomini、Bruno Di Simone、Roberto Camerini
DOI:10.1055/s-1994-25579
日期:——
The utility of the weak base potassium tert-butoxide has been successfully demonstrated in the synthesis of ß-lactams and 3, 4-dihydropyridin-2-ones starting from esters and imines.
EASTON, CHRISTOPHER J.;LOVE, STEPHEN G.;WANG, PENG, J. CHEM. SOC. PERKIN TRANS. PT 1,(1990) N, C. 277-282
作者:EASTON, CHRISTOPHER J.、LOVE, STEPHEN G.、WANG, PENG
DOI:——
日期:——
EASTON, C. J.;LOVE, S. G., TETRAHEDRON LETT., 1986, 27, N 20, 2315-2318
作者:EASTON, C. J.、LOVE, S. G.
DOI:——
日期:——
Easton, Christopher J.; Love, Stephen G.; Wang, Peng, Journal of the Chemical Society. Perkin transactions I, 1990, # 2, p. 277 - 282
作者:Easton, Christopher J.、Love, Stephen G.、Wang, Peng
DOI:——
日期:——
Direct introduction of a benzoyloxy substituent at the C-4 position of β-lactams
作者:Christopher J. Easton、Stephen G. Love
DOI:10.1016/s0040-4039(00)84518-9
日期:——
The copper-promoted reaction of β-lactams with t-butylperbenzoate results in benzoyloxylation of the azetidin-2-one ring at the C-4 position. There is no competing reaction at the C-3 position, but reaction at exocyclic carbon α to nitrogen competes with ring substitution.