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2-Methyl-2-(2-nitrophenyl)propanoicacid synthesis

2synthesis methods
METHYL 2-METHYL-2-(2-NITROPHENYL)PROPIONATE

136764-87-9
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2-Methyl-2-(2-nitrophenyl)propanoicacid

126802-52-6
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Yield: 94%

Reaction Conditions:

with water;sodium hydroxide in methanol for 48 h;Reflux;

Steps:

1.1
he above-mentioned product 10.5g soluble in 100 ml, the volume ratio of methanol: water=1:1 solution, adding 8M of sodium hydroxide solution 20 ml, reflux 48 hours, TLC monitoring completion of the reaction, by adding 1M hydrochloric acid, the PH is adjusted to 2 - 3, by adding dichloromethane extraction 3 times, collecting the organic phase, dried with anhydrous sodium sulfate, concentrated under reduced pressure, column chromatography 9.2g, the yield is 94%

References:

Jiangxi Normal University;Sun Jiansong;Liu Hui;Liao Jinxi CN106831436, 2017, A Location in patent:Paragraph 0017; 0018; 0021