Spiro Derivatives of Tetrahydrothiophene. Synthesis of the Quinolizidinetetrahydrothiophene System Using Solid/Liquid or Liquid/Liquid Phase-Transfer Catalysis

Article abstract of DOI:10.1055/s-1987-33430

4-Oxooctahydroquinolizine<3-spiro-2'>tetrahydrothiophene 1',1'-dioxide can be synthetized from 2-cyanotetrahydrothiophene by two independent routes, both of them using phase-transfer catalysis: the first one involves alkylation of 2-cyanotetrahydrothiphen