Optimizing P,N-bidentate ligands for oxidative gold catalysis: efficient intermolecular trapping of α-oxo gold carbenes by carboxylic acids.
Optimizing P,N-bidentate ligands for oxidative gold catalysis: efficient intermolecular trapping of α-oxo gold carbenes by carboxylic acids.
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DOI:
10.1002/anie.201301601
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发表时间:
2013-06-17
影响因子:
16.6
通讯作者:
Zhang, Liming
中科院分区:
文献类型:
--
作者:
Ji, Kegong;Zhao, Yulong;Zhang, Liming
Steric Bulk or Conformation Control? Optimization of P,N-bidentate ligands reveals the importance of conformation control in the development of highly efficient intermolecular trapping of reactive α-oxo gold carbene intermediates. While a pendant piperidine ring offers suitable steric bulk, fixing its conformation to provide better shielding to the highly electrophilic carbene center turned out to be crucial for the excellent reaction efficiency. A generally highly efficient and broadly applicable synthesis of carboxymethyl ketones from readily available carboxylic acids and terminal alkynes is developed under exceptionally mild reaction conditions.
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