ChemicalBook CAS DataBase List 2-PROPYL-4-METHYL-1,3-DIOXOLANE

2-PROPYL-4-METHYL-1,3-DIOXOLANE synthesis

3synthesis methods

Product Name:2-PROPYL-4-METHYL-1,3-DIOXOLANE
CAS Number:4352-99-2
Molecular formula:C7H14O2
Molecular Weight:130.18

57-55-6 Synthesis

57-55-6
1770 suppliers
$5.00/1g

123-72-8 Synthesis

123-72-8
447 suppliers
$12.32/25ML

4352-99-2
14 suppliers
$31.00/1g

Yield: 91.57%

Reaction Conditions:

for 2 h;Reflux;

Steps:

26; 28
Epoxidation reaction: 500 g of propionitrile and 12.5 g of phosphotungstic acid catalyst were placed in a 1 L autoclave, filled with 61.8 g of propylene (1.47 mol), the reaction was vigorously stirred at 70 ° C for 4 h, and the temperature was lowered, the pressure was released, and the sample was analyzed. The conversion rate of hydrogen peroxide was 99.65%, the PO yield was 91.83%, and the PG yield was 4.33%. Ketal (aldehyde) synthesis reaction: The above-mentioned pot material was distilled out of P0, the kettle was transfered to a four-necked bottle equipped with a stirring, thermometer, water separator, and reflux condenser, 3.15 g of cyclohexanone (the molar ratio of cyclohexanone to PG is 2), the reaction temperature was controlled to reflux and divert water to no moisture, after 2h of reaction, cooling, sampling and analysis, the catalyst was recovered by filtration, the filtrate was distilled to separate the solvent, raw material cyclohexanone, and the product cyclohexanone 1,2-propanediol ketal, the recovered catalyst and the recovered solvent propionitrile were applied to the epoxidation reaction. The conversion of PG was 98.48%, and the yield of cyclohexanone 1, 2-propanediol ketal was 90.11% (for PG).

References:

Jiangsu Yangnong Chemical Group Co., Ltd.;Jiangsu Ruixiang Chemical Co., Ltd.;Jiangsu Ruiheng New Materials Technology Co., Ltd.;Wang Genlin;Ding Kehong;Xu Lin;Wang Cheng;Wang Gang;Yin Hengzhi;Qi Mingfu;Xu Yue;Liu Xiangli;Wu Jian;Liu Jie;Guo Yuxiu;Liu Xin CN109160907, 2019, A Location in patent:Paragraph 0020; 0037; 0038; 0039

57-55-6 Synthesis

57-55-6
1770 suppliers
$5.00/1g

123-72-8 Synthesis

123-72-8
447 suppliers
$12.32/25ML

4352-99-2
14 suppliers
$31.00/1g

71-36-3 Synthesis