2-HYDROXYTETRAHYDROPYRAN synthesis
- Product Name:2-HYDROXYTETRAHYDROPYRAN
- CAS Number:694-54-2
- Molecular formula:C5H10O2
- Molecular Weight:102.13
4221-03-8
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694-54-2
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Yield:694-54-2 95 g
Reaction Conditions:
with hydrogenchloride in chloroform at 70; for 2 h;Temperature;
Steps:
1.1; 2.1; 3.1; 4.1 1) Preparation of 2-hydroxytetrahydropyran
Add 105g of 5-hydroxyvaleraldehyde and 200mL of chloroform into the three-necked flask, while continuously introducing anhydrous hydrogen chloride gas, heating to 70°C and reacting for 2h; The product after the reaction was distilled under reduced pressure, and the fraction with the mother liquor temperature of 50°C to 70°C was collected under a pressure of 300Pa. Obtain 95 g of 2-hydroxytetrahydropyran as a colorless transparent viscous oily product.
References:
Dongguan Bodun Flavors Co., Ltd.;Cai Guoxiang;Zhong Nengbang;Guan Junjian;Wu Qilin;Hu Shilin;Feng Jiao CN111303101, 2020, A Location in patent:Paragraph 0079-0125
110-87-2
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627-27-0
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201230-82-2
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