ChemicalBook CAS DataBase List alpha-Angelica lactone

alpha-Angelica lactone synthesis

12synthesis methods

Product Name:alpha-Angelica lactone
CAS Number:591-12-8
Molecular formula:C5H6O2
Molecular Weight:98.1

By dry distillation of levulinic acid

98-01-1 Synthesis

98-01-1
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$19.69/250g

67-63-0 Synthesis

67-63-0
1548 suppliers
$16.00/25ML

591-12-8
251 suppliers
$15.00/1g

21884-26-4
28 suppliers
$450.23/5MG

113984-01-3
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inquiry

108-29-2
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$10.00/5 g

Yield:108-29-2 13.2 mol ，113984-01-3 11.5 mol ，591-12-8 32.8 mol ，21884-26-4 10.8 mol

Reaction Conditions:

with HPW supported on the Zr-Beta zeolite at 140; under 7500.75 Torr; for 6 h;Inert atmosphere;Reagent/catalyst;

Steps:

1 Experiment on Reaction for Producing Gamma-Valerolactone
The reaction for producing gamma-valerolactone was conducted in an 80 ml batch reactot The catalyst (0.08 g) prepared in Example 1 was introduced into a reactor, and then 0.2 g of thrfural mixed with 20 mL of isopropyl alcohol of a solvent was introduced into the reactor. Thereafier, the air contained in the reactor was thoroughly discharged from the reactor using nitrogen, then the nitrogen gas was filled in the reactor up to 10 bar, and the reaction temperature was raised to 120 °C. to 140 °C. while stirring the mixture using a magnetic stirret After the reaction temperature was achieved, the reaction was conducted for 6 hours, and the reaction products were analyzed by GC. FIG. 1 illustrates the reaction path expected based on the reaction products observed as a result of the catalytic reaction, and the quantitative analysis results of the reaction products are presented in Table 1.

References:

KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY;JAE, Jungho;Winoto, Haryo Pandu;HA, Jeong-Myeong;LEE, Hyun Joo;SUH, Dong Jin;AHN, Byoung Sung US2019/134616, 2019, A1 Location in patent:Paragraph 0076; 0079

123-76-2 Synthesis