Process for synthesizing geraniol/nerol from linalool
A technology of linalool and geraniol, which is applied in the field of synthesizing geraniol/neroliol, can solve the problems of production by-products, high cost, high industrialization cost, etc., and achieve reduced raw material cost, lightened workload, and less environmental pollution Effect
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Embodiment 1
[0035] Add 360g of linalool (45wt%), 288g of auxiliary agent (ethylene glycol borate), 1.56g of tungsten oxide in 1 liter of four-port reactor, heat to 150°C under nitrogen protection and keep the temperature for 12 hours. After the reaction was over, the crude product was separated by distillation under reduced pressure; 360 g was fed into the original reactor for the second reaction. The operation is repeated 20 times, and the average conversion rate of the reaction is not lower than 45%, and the average selectivity is not lower than 95%.
Embodiment 2
[0037] Add 360g of linalool (60wt%), 360g of additives (polyethylene glycol borate with a molecular weight of 7000-9000), 1.8g of chromium oxide in a 1-liter four-port reactor, and heat to 160°C under nitrogen protection. And constant temperature for 12 hours. After the reaction was over, the crude product was separated by distillation under reduced pressure; 360 g was fed into the original reactor for the second reaction. The operation is repeated 20 times, and the average conversion rate of the reaction is not lower than 50%, and the average selectivity is not lower than 95%.
Embodiment 3
[0039] Add 360g of linalool (65wt%), 288g of auxiliary agent (pentaerythritol borate), 1.44g of vanadium oxide in 1 liter of four-hole reaction kettle, and heat to 180° C. and keep the temperature for 10 hours under the protection of nitrogen. After the reaction was over, the crude product was separated by distillation under reduced pressure; 360 g was fed into the original reactor for the second reaction. The operation is repeated 20 times, and the average conversion rate of the reaction is not lower than 60%, and the average selectivity is not lower than 95%.
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