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Studies on Transition-metal-catalyzed C-H Functionalization

Author: JiaXiaoFei
Tutor: ChengJiang
School: Wenzhou University
Course: Organic Chemistry
Keywords: C-H bond Palladium-catalyzed Aromatic acylated Cyanide reaction
CLC: O621.25
Type: Master's thesis
Year: 2010
Downloads: 215
Quote: 0
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Abstract


The selective oxidation of CH bond activation has long been a dream of organic chemists . Since the CH bond such as methane , the bond energy of up to 414 kJ / mol, in many chemical reactions , rendering inert, and therefore the functional group of the CH bond is referred to as the \The paper around the CH bond functionalization reaction for organic synthesis . This thesis is divided into three parts: 1 in CH bond activation of the latest developments . Transition metal-catalyzed sp2 CH key aryl acylation reaction . 3 the sp2 CH key to the transition metal-catalyzed cyanation . The first part of the latest progress of the transition metal catalyzed CH bond activation . The second part of the study and discusses the transition metal-catalyzed sp2 CH key aryl acylation reaction . Using 2 - ( aryl ) pyridine and aryl aldehyde substrate green air as an oxidizing agent , in the palladium-catalyzed conditions , activation of the direct synthesis of aryl ketones , CH , and its Kinetic Isotope Effect Reaction Mechanism a preliminary exploration . The third part of the study and explore the the sp2 CH key to the transition metal-catalyzed reaction of cyanide and its application : (1 ) CuCN cyanide source , 2 - aryl pyridine as substrate synthesis of a number of columns , CH activation of aromatic nitrile compounds , and the reaction mechanism and practical exploration. ( 2 ) to the low toxicity of K3 [ Fe ( CN ) 6 ] as the cyanide source , 2 - aryl pyridine and 1 - aryl - pyrazole as a substrate , the number of columns of the bromide by the CH / cyanide synthesis aryl nitrile compound. These two aspects of the study provides a new method for the synthesis of aryl ketones and aryl nitriles with reaction raw materials readily available , easy to operate , under mild conditions , the yield of medium to high-class advantages .

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CLC: > Mathematical sciences and chemical > Chemistry > Organic Chemistry > Organic Chemistry general issues > Properties of organic compounds > Chemical properties of organic reactions
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