Method for reducing aromatic hydrocarbon by indirect hydrogen transfer
An aromatic hydrocarbon and hydrogen transfer technology, applied in the fields of hydrogenation to hydrocarbons, organic chemistry, etc., can solve the problems of slow reaction speed, poor solubility, long reaction time, etc., and achieve mild hydrogenation reaction conditions and improve the effect of hydrogenation reaction rate.
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Embodiment 1
[0018] Embodiment 1: the reduction of benzene
[0019] Add 3.9g (0.05mol) of benzene, 2.5g (0.013mol) of N-ethylcarbazole and 0.2g of Ru into the autoclave, fill with hydrogen to a pressure of 0.4MPa, raise the temperature to 50°C, and stir for 3 hours to complete the reaction. After the temperature was lowered and the kettle was opened, 4.1 g of the product cyclohexane was obtained with a yield of 98% through distillation.
Embodiment 2
[0021] Embodiment 2: the reduction of toluene
[0022] Add 4.6g (0.05mol) of toluene (0.05mol), 2g (0.012mol) of carbazole and 0.2g of Ru into the autoclave, fill with hydrogen to a pressure of 0.2MPa, and the reaction temperature is 75°C, and the reaction is completed after stirring for 5 hours. Product methylcyclohexane 2.5g, yield is 51%.
Embodiment 3
[0024] Embodiment 3: the reduction of toluene
[0025] Add 4.6g (0.05mol) of toluene (0.05mol), 2g (0.012mol) of carbazole and 0.2g of Rh into the autoclave, fill with hydrogen to a pressure of 1MPa, the reaction temperature is 60°C, and the reaction is completed after stirring for 2 hours. After cooling down and opening the kettle, the product is distilled 4.7 g of methylcyclohexane, the yield is 96%.
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