ChemicalBook CAS DataBase List p-Hydroxyphenyl propanoate

p-Hydroxyphenyl propanoate synthesis

7synthesis methods

Product Name:p-Hydroxyphenyl propanoate
CAS Number:3233-34-9
Molecular formula:C9H10O3
Molecular Weight:166.17

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123-31-9 Synthesis

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Yield:3233-34-9 89 %

Reaction Conditions:

with triethylmethylammonium hydroxide;potassium carbonate;sulfobutyl-β-cyclodextrin in ethanol;water at 20;Inert atmosphere;

Steps:

1.1 Comparative Example 1

(1) 0.04 g of methyltriethylammonium hydroxide and 0.5 g of sulfobutyl-β-cyclodextrin, after grinding uniformly, stir in a flask with 1.1 g of hydroquinone, 30 g of water and 6 g of ethanol, and after nitrogen protection Add 1.6 g of potassium carbonate, add 1.3 g of propionic anhydride in portions at room temperature, keep stirring for 6 h, adjust to neutrality after the reaction, extract with chloroform, distill the extract to dryness under reduced pressure, and use ethanol and water for step crystallization to obtain monopropylene Acyl hydroquinone 1.5g, content 98.5%, yield 89.0%.

References:

CN114805038,2022,A Location in patent:Paragraph 0066-0067