The essence oil of citrus grandis peel and orange peel was extracted by the microwave method in this article.The results show that the best condition of extracting is when 100 g peel is extracted at 360 W with n-hexan...The essence oil of citrus grandis peel and orange peel was extracted by the microwave method in this article.The results show that the best condition of extracting is when 100 g peel is extracted at 360 W with n-hexane for 50 s,the obtained rate of pomelo oil is 1.73% and orange oil is 0.65%.展开更多
Alkyl methyl(ethyl) malonates were synthesized by solidliquid phase transfer catalysis without solvent in the new method of the reaction of potassium methyl(ethyl) malonate with alkyl bromide or chloride with high y...Alkyl methyl(ethyl) malonates were synthesized by solidliquid phase transfer catalysis without solvent in the new method of the reaction of potassium methyl(ethyl) malonate with alkyl bromide or chloride with high yields.Under the microwave irradiation,the reaction time was reduced from 2h to 2min with equal yield.展开更多
文摘The essence oil of citrus grandis peel and orange peel was extracted by the microwave method in this article.The results show that the best condition of extracting is when 100 g peel is extracted at 360 W with n-hexane for 50 s,the obtained rate of pomelo oil is 1.73% and orange oil is 0.65%.
文摘Alkyl methyl(ethyl) malonates were synthesized by solidliquid phase transfer catalysis without solvent in the new method of the reaction of potassium methyl(ethyl) malonate with alkyl bromide or chloride with high yields.Under the microwave irradiation,the reaction time was reduced from 2h to 2min with equal yield.
