VALERIC ANHYDRIDE synthesis
- Product Name:VALERIC ANHYDRIDE
- CAS Number:2082-59-9
- Molecular formula:C10H18O3
- Molecular Weight:186.25
109-52-4
352 suppliers
$10.60/1gm:
2082-59-9
189 suppliers
$11.00/25g
Yield:2082-59-9 91%
Reaction Conditions:
with dicyclohexyl-carbodiimide in dichloromethane at 20; for 0.583333 h;Time;
Steps:
2 Example 2: The preparation method of pentanoic anhydride comprises the following steps:
in the 1000 ml flask of the three-port adding 255g dichloromethane and 102g valeric acid, then added in batches 226.6g dicyclohexyl carbodiimide, room temperature reaction 35 minutes; and then through the filter to remove solid impurities in the reaction solution, methylene chloride is recycled by distillation under reduced pressure, after to be dichloromethane recovery, vacuum distillation to obtain the target product temperature 93g valeric anhydride, valeric anhydride the yield of 91%, purity of 99.3%.
References:
Chongqing Tian Yi Heng Chemical Co., Ltd.;Zheng, Wei;Tang, Yong CN105481680, 2016, A Location in patent:Paragraph 0019; 0020
109-52-4
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$10.60/1gm:
2082-59-9
189 suppliers
$11.00/25g
638-29-9
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$14.14/1gm:
108-24-7
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$14.00/250ML
109-52-4
352 suppliers
$10.60/1gm:
2082-59-9
189 suppliers
$11.00/25g
71-41-0
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$9.33/100 mL
2082-59-9
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$11.00/25g
107-92-6
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$9.00/5g
2082-59-9
189 suppliers
$11.00/25g