Solid-Phase Synthesis of Pyrazolines and Isoxazolines with Sodium Benzenesulfinate as a Traceless Linker
作者:Yu Chen、Yulin Lam、Yee-Hing Lai
DOI:10.1021/ol0340888
日期:2003.4.1
text] The preparation of pyrazoline and isoxazoline derivatives with tracelesssolid-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