Anionic Domino C<i>-</i>O-Heterocyclization Approach for the Synthesis of 5-Vinyl Isoxazolines
作者:H. Kumar、Naveed Qazi、Parvinder Singh、Sumira Jan
DOI:10.1055/s-2007-980346
日期:2007.6
5-Vinyl isoxazolines were isolated in high yields through domino nucleophilic addition-anionic C-O-heterocyclization, when allyl organometallics derived from trans-1,4-dihalobutene were reacted with nitrile oxides.
JARRAR, ADIL A.;HUSSEIN, AHMAD Q.;MADI, AHMAD S., J. HETEROCYCL. CHEM., 27,(1990) N, C. 275-278
作者:JARRAR, ADIL A.、HUSSEIN, AHMAD Q.、MADI, AHMAD S.
DOI:——
日期:——
Synthesis of 5-Vinyl-2-isoxazolines by Palladium-Catalyzed Intramolecular <i>O</i>-Allylation of Ketoximes
作者:Rodney A. Fernandes、Ashvin J. Gangani、Arpita Panja
DOI:10.1021/acs.orglett.1c01897
日期:2021.8.20
An efficient method for the synthesis of 5-vinyl-2-isoxazolines by Pd-catalyzed intramolecular O-allylation of ketoximes has been developed. The reaction involves Pd(0)-catalyzed π-allyl formation via leaving group ionization or Pd(II)-catalyzed allylic C–H activation followed by intramolecular nucleophilic oxime oxygen attack. This methodology has been elaborated to various value-added products by