Asymmetric Pt(II)-Catalyzed Ene Reactions: Counterion-Dependent Additive and Diphosphine Electronic Effects1
Organic Letters2001Vol. 3(8), pp. 1233–1236
Citations Over TimeTop 22% of 2001 papers
Abstract
[reaction: see text]. Catalysis of the glyoxylate-ene reaction by dicationic P2Pt(II) complexes is subject to anion-dependent additive effects. For [((S)-MeOBiphep)Pt](OTf)2 catalysts, acidic phenols such as 3-CF3-C6H3OH or C6F5OH provide substantial rate increases but do not affect the more active SbF6-based catalysts. Enantioselectivity and reactivity also increased with diphosphine basicity, with 4-t-Bu-substituted MeOBiphep ligands yielding the highest enantioselectivities.
Related Papers
- A GEOMETRIC MEAN IN THE FURUTA INEQUALITY(2002)
- Susquehanna Chorale Spring Concert "Roots and Wings"(2017)
- Коммуникaтивно- прaгмaтический aнaлиз дипломaтических бумaг (нa основе вербaльных нот)(2018)
- → ФОРМИРОВAНИЕ ГОТОВНОСТИ БУДУЩИХ ПЕДAГОГОВ К ОРГAНИЗAЦИИ РAБОТЫ ПО РAЗВИТИЮ ВAЛЕОЛОГИЧЕСКОЙ КУЛЬТУРЫ ШКОЛЬНИКОВ(2023)