Highly Enantioselective [3+2] Annulation of Morita-Baylis-Hillman Adducts Mediated by L-Threonine-Derived Phosphines: Synthesis of 3-Spirocyclopentene-2-oxindoles having Two Contiguous Quaternary Centers

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

WILEY-V C H VERLAG GMBH

1. National University of Singapore
2. Ministry of Education (MOE) of Singapore [R-143-000-362-112]