Synthetic Route of 19064-67-6, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.19064-67-6, Name is 6-Chloro-3-hydroxypyridazine, molecular formula is C4H3ClN2O. In a Article£¬once mentioned of 19064-67-6
Copper-catalyzed aerobic dehydrogenation of C-C to C=C bonds in the synthesis of pyridazinones
A simple and efficient procedure for the synthesis of pyridazin-3(2H)-ones through copper-catalyzed dehydrogenation of a single C-C bond of 4,5-dihydropyridazin-3(2H)-ones to a C=C bond with oxygen as the terminal oxidant is described. Functional groups including hydroxy, carboxylic, bromo, chloro, cyano, nitro and alkoxy were all tolerated under the reaction conditions. Moreover, this methodology was applied to the preparation of a series of structurally similar N-substituted 6-phenylpyridazinone compounds containing fluorine. The dehydrogenation reactions exhibit good yields and selectivity. Copper-catalyzed dehydrogenation of a C-C bond of 4,5-dihydropyridazinones to a C=C bond with oxygen as the terminal oxidant is described. Various functional groups were tolerated under the reaction conditions. The method was also applied to the preparation of a series of N-substituted 6-phenylpyridazinones containing fluoride. The dehydrogenation reactions exhibit good yields and selectivity.
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Reference£º
Pyridazine – Wikipedia,
Pyridazine | C4H4N759 – PubChem