A general strategy for regiocontrol in nickel-catalyzed reductive couplings of aldehydes and alkynes.
A general strategy for regiocontrol in nickel-catalyzed reductive couplings of aldehydes and alkynes.
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DOI:
10.1021/ja102262v
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发表时间:
2010-05-12
影响因子:
15
通讯作者:
Montgomery J
中科院分区:
文献类型:
--
作者:
Malik HA;Sormunen GJ;Montgomery J
A strategy for catalyst-controlled regioselectivity in aldehyde-alkyne reductive couplings has been developed. This strategy is the first where either regiochemical outcome may be selected for a broad range of couplings, without relying on substrate biases or directing effects. The complementary use of small cyclopropenylidene carbene ligands or highly hindered N-heterocyclic carbene ligands allows the regiochemical reversal with unbiased internal alkynes, aromatic internal alkynes, conjugated enynes, or terminal alkynes.
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