In Situ Ring‐Closing Strategy for Direct Synthesis of N‐Heterocyclic Carbene Nickel Complexes and Their Application in Coupling of Allylic Alcohols with Aryl Boronic Acids
作者:Yu‐Bin Wang、Bin‐Yuan Liu、Qingqing Bu、Bin Dai、Ning Liu
DOI:10.1002/adsc.202000186
日期:2020.7.29
A in situ ring‐closing strategy was developed for the synthesis of N‐heterocycliccarbenenickelcomplexes. The process was carried out in air, and did not require solvent purification. The resulting nickelcomplexes were investigated as catalysts for the coupling of allylic alcohols with aryl boronic acids. A wide range of allylic substrates and aryl acids proved to be applicable to this catalytic
Method for Allylating and Vinylating Aryl, Heteroaryl, Alkyl, and Alkene Halogenides Using Transition Metal Catalysis
申请人:Gotta Matthias
公开号:US20130184485A1
公开(公告)日:2013-07-18
What is described is a process for preparing organic compounds of the general formula (I)
R—R′ (I)
by converting a corresponding compound of the general formula (II)
R—X (II)
in which
X is fluorine, chlorine, bromine or iodine to an organomagnesium compound of the general formula (III)
[M
+
]
n
[R
m
MgX
k
Y
1
] (III)
wherein compounds of the formula (III) are reacted with a compound of the general formula (IV)
characterized in that the reaction of (III) with (IV) is performed in the presence of
a) catalytic amounts of an iron compound, based on the compound of the general formula (II), and optionally in the presence of
b) a nitrogen-, oxygen- and/or phosphorus-containing additive in a catalytic or stoichiometric amount, based on the compound of the general formula (II).