A superior P-H phosphonite: Asymmetric allylic substitutions with fenchol-based palladium catalysts
نویسندگان
چکیده
The fenchol-based P-H phosphonite BIFOP-H exeeds with 65% ee other monodentate ligands in the Pd-catalyzed substitution of 1-phenyl-2-propenyl acetate with dimethylmalonate.
منابع مشابه
Efficient recycling of a chiral palladium catalytic system for asymmetric allylic substitutions in ionic liquid.
Chiral carbohydrate-based diphosphites were used for Pd-catalysed asymmetric allylic substitution (alkylation, amination, phosphination) in neat ionic liquids (ILs). Pyrrolidinium-based IL led to the best activities, allowing an efficient catalyst immobilization. In the allylic amination (TOF > 3100 h(-1)), the catalyst could be recycled nine times preserving both activity and enantioselectivity.
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عنوان ژورنال:
- Beilstein Journal of Organic Chemistry
دوره 2 شماره
صفحات -
تاریخ انتشار 2006