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ChemicalBook CAS DataBase List 3-Bromophthalic anhydride
82-73-5

3-Bromophthalic anhydride synthesis

6synthesis methods
-

Yield:82-73-5 96%

Reaction Conditions:

with acetic anhydride for 1 h;Reflux;

Steps:

1.2 Step (2):

Put M1 (3g) obtained in step (1) in acetic anhydride (5mL),The temperature is raised to reflux and the solid is dissolved,After 1 hour of heat preservation reaction, it will be cooled naturally,Add 20mL petroleum ether and cool to 0,Stir and crystallize,filter,The solid is washed with petroleum ether and dried,M2 was obtained (96% yield).

References:

CN112876403,2021,A Location in patent:Paragraph 0031; 0036-0038

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