hex-2-enal synthesis
- Product Name:hex-2-enal
- CAS Number:505-57-7
- Molecular formula:C6H10O
- Molecular Weight:98.14
Yield:505-57-7 84%
Reaction Conditions:
Stage #1:butyraldehyde;ethyl vinyl ether with boron trifluoride diethyl etherate at 10 - 20; for 1 h;
Stage #2: with zinc(II) chloride in waterHeating;Temperature;Reagent/catalyst;
Steps:
4 Example 4
To the reaction flask was added 0.02 equivalents of boron trifluoride ether solution,A mixture of 100 g of vinyl ether and 300 g of n-butyraldehyde n-butyraldehyde was added dropwise,Temperature control at 10-20 ,After stirring, the mixture was stirred for 1 hour,6.5% of the 5% zinc chloride aqueous solution was added to the other reaction flask and heated,The reaction solution was added dropwise and the mixture was distilled off while dropping.The distillate crude product was added to 0.2% by weight of p-methoxyphenol,First distillation of low-boiling,Continuous distillation in the decompression,When the pressure is -0.09MPa, the top temperature of 78-80 when the collection of 2-hexenal pure,Yield 84%, GC: 99.5%.
References:
Hubei Jinghong Biotechnology Co., Ltd.;Yang, Hui;Zhao, Yayun;Zhu, Meishan;Hua, Xinglei;Chen, Lei CN106380383, 2017, A Location in patent:Paragraph 0014; 0015; 0016; 0017
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