title: Solid-phase synthesis of pyrazolines and isoxazolines with sodium benzenesulfinate as a traceless linker.
abstract: [reaction: see text] The preparation of pyrazoline and isoxazoline derivatives with traceless solid-phase sulfone linker strategy is described. Key steps involved in the solid-phase synthetic procedure include (i) sulfinate S-alkylation, (ii) sulfone anion alkylation, (iii) gamma-hydroxy sulfone --> gamma-ketosulfone oxidation, and (iv) traceless product release via elimination-cyclization. A library of 12 pyrazolines and isoxazolines was synthesized.
authors.affiliation: Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543.
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Yulin
authors.initials: Y
authors.lastname: Lam
authors.forename: Yee-Hing
authors.initials: YH
authors.lastname: Lai