Efficient recycling of a chiral palladium catalytic system for asymmetric allylic substitutions in ionic liquid.
نویسندگان
چکیده
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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ورودعنوان ژورنال:
- Chemical communications
دوره 47 27 شماره
صفحات -
تاریخ انتشار 2011