| abstract |
The invention relates to the technical field of organic chemical synthesis, in particular to a preparation method of trans-disubstituted alkene. The preparation method takes primary alcohol and methyl nitrogen heterocycle as raw materials, takes transition metal salt, nitric oxide and alkali as catalysts, takes organic solution as reaction medium, and is prepared by reaction in oxygen atmosphere. The preparation method has the advantages that the reaction by-product is only water, no pollution is caused to the environment, the needed transition metal catalyst is cheap and easy to obtain, high temperature is not needed in the reaction, and the reaction cost and the requirement on the reaction condition can be reduced. |