Synthesis of 6-substituted tetrahydropyridinones and cyclization to indolizidine and quinolizidine structures
作者:Shang-Shing P. Chou、Hao-Chieh Chiu、Chia-Cheng Hung
DOI:10.1016/s0040-4039(03)01096-7
日期:2003.6
3-Sulfolenes 1 with various substituents at C-2 underwent [4+2] cycloaddition reactions with p-toluenesulfonyl isocyanate to give the teterahydropyridinones 4. Through N-detosylation and Hg(II)-mediated electrophilic addition/intramolecular cyclization of 4e and 4f, the indolizidine and quinolizidine compounds 7a/7b and 8 were synthesized, respectively.