256399-59-4Relevant articles and documents
Isolation of a Reactive Tricoordinate α-Oxo Gold Carbene Complex
Zeineddine, Abdallah,Rekhroukh, Feriel,Sosa Carrizo, E. Daiann,Mallet-Ladeira, Sonia,Miqueu, Karinne,Amgoune, Abderrahmane,Bourissou, Didier
, p. 1306 - 1310 (2018)
The [(P,P)Au=C(Ph)CO2Et]+ complex 3 [where (P,P) is an o-carboranyl diphosphine ligand] was prepared by diazo decomposition at ?40 °C. It is the first α-oxo gold carbene complex to be characterized. Its crystallographic structure was determined and DFT calculations have been performed, unraveling the key influence of the chelating (P,P) ligand. The gold center is tricoordinate and the electrophilicity of the carbene center is decreased. Complex 3 mimics transient α-oxo gold carbenes in a series of catalytic transformations, and provides support for the critical role of electrophilicity in the chemoselectivity of phenol functionalization (O?H vs. C?H insertion).
Catalytic O-H bond insertion reactions using surface modified sewage sludge as a catalyst
Baell, Jonathan B.,He, Yide,Huang, Fei,Huang, He,Xu, Yao,Yi, Xiangyan,Yu, Yang,Zhang, Zhipeng
, p. 1594 - 1604 (2020/03/26)
Developing a greener, sustainable catalyst is a very important but challenging task in organic synthesis. Herein, for the first time, we choose more economical and greener surface modified sewage sludge-derived carbonaceous materials (SW) treated by perch
Acid catalytic synthesis method and application of phenoxyacetate derivatives
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Paragraph 0038-0057, (2019/11/21)
The invention discloses an acid catalytic synthesis method and application of phenoxyacetate derivatives. In the method, an O-H insertion reaction is performed on one diazo ester compound and one phenolic compound by an acid catalyst to form a C-O bond to
