Skeletal change in the PNP pincer ligand leads to a highly regioselective alkyne dimerization catalyst.
نویسندگان
چکیده
A Rh complex of a bulky diarylamino-based PNP pincer ligand is a robust catalyst for the dimerization of terminal alkynes and highly selective for the trans-enyne product.
منابع مشابه
Pyridine-enhanced head-to-tail dimerization of terminal alkynes by a rhodium-N-heterocyclic-carbene catalyst.
A general regioselective rhodium-catalyzed head-to-tail dimerization of terminal alkynes is presented. The presence of a pyridine ligand (py) in a Rh-N-heterocyclic-carbene (NHC) catalytic system not only dramatically switches the chemoselectivity from alkyne cyclotrimerization to dimerization but also enhances the catalytic activity. Several intermediates have been detected in the catalytic pr...
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ورودعنوان ژورنال:
- Chemical communications
دوره 2 شماره
صفحات -
تاریخ انتشار 2006