Efficient Three-Component Strecker Reaction of Aldehydes/Ketones via NHC-Amidate Palladium(II) Complex Catalysis
作者:Jamie Jarusiewicz、Yvonne Choe、Kyung Soo Yoo、Chan Pil Park、Kyung Woon Jung
DOI:10.1021/jo900163w
日期:2009.4.3
A simple and efficient one-pot, three-component method has been developed for the synthesis of α-aminonitriles. This Streckerreaction is applicable for aldehydes and ketones with aliphatic or aromatic amines and trimethylsilyl cyanide in the presence of a palladium Lewis acid catalyst in dichloromethane solvent at room temperature.
N-HETEROCYCLIC CARBENE-AMIDO PALLADIUM(II) CATALYSTS AND METHOD OF USE THEREOF
申请人:Jung Kyung Woon
公开号:US20100036131A1
公开(公告)日:2010-02-11
A new N-heterocyclic catalyst system which contains N-heterocyclic carbene and amido as ligands, which are strongly bound to a palladium metal. Another heteroatom functionality can be used as a third ligand L. The NHC-amidate ligand system is unique in structure, and shows excellent reactivities in a number of chemical reactions. The chemical reactions include carbon-carbon and carbon-heteroatom (oxygen and nitrogen) bond formations, and oxidation reactions of saturated carbon chemicals via C—H activation.
triphenylene‐based tris(N‐heterocyclic carbene)–gold–acetylide main‐chain organometallic microporous polymers (MOMPs) were obtained and fully characterized. Both materials show spherical shapes, and their size is highly dependent on the type of acetylene used in the synthetic protocol. The new solids were tested in the catalytic reduction of nitroarenes with NaBH4 and in the three‐componentStrecker reaction
A D<sub>3h</sub>-symmetry hexaazatriphenylene-tris-N-heterocyclic carbene ligand and its coordination to iridium and gold: preliminary catalytic studies
作者:S. Ibáñez、M. Poyatos、E. Peris
DOI:10.1039/c7cc00525c
日期:——
A planar star-shaped tris-NHC ligand with a hexaazatriphenylene core was coordinated to gold and iridium. The tris–Au(i) complex shows enhanced catalytic activities due to the electron-deficient character of the HAT core.
作者:Jaewon Choi、Hye Yun Yang、Hae Jin Kim、Seung Uk Son
DOI:10.1002/anie.201003101
日期:2010.10.11
Hollow‐sphere catalysts were prepared by means of 3D network formation between a tetraimidazolium building block and palladium acetate. The bis(N‐heterocyclic carbene)–palladiumspecies that were concomitantly formed during growth of the hollowspheres showed excellent activity as heterogeneous catalysts in one‐pot three‐component Streckerreactions of ketones (see picture; TMS=trimethylsilyl).