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ChemicalBook CAS DataBase List 4-NITROSTYRENE

4-NITROSTYRENE synthesis

11synthesis methods
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Yield:100-13-0 98.2%

Reaction Conditions:

with sodium hydroxide;1-butyl-methylpyrrolidinium bis(trifluoromethylsulfonyl)amide at 160; for 5 h;

Steps:

4 Example 4
1000 mL reaction flask was added with 151.0 g (1 mol) of p-nitrobenzaldehyde and145.6g (1.4mol) of malonic acid, ionic liquid 400gN-butyl-N-methylpyrrolidine bis(trifluoromethanesulfonyl)imide salt,4g (0.1mol) sodium hydroxide, reacted at 40-50 ° C for 3 hours,Reheating to 160 degrees for 5 hours, after the reaction is completed, it is lowered to normal temperature.Extract directly with ethyl acetate 500mLx3, wash with salt water,Concentration gave 146.5 g of p-nitrostyrene in a yield of 98.2%.

References:

Ningbo Weixin New Materials Technology Co., Ltd.;Yao Zhiyi;Yao Xiaoming CN109485550, 2019, A Location in patent:Paragraph 0032-0034

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