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ChemicalBook CAS DataBase List 6-Methoxy-3-Methylisoquinolin-1(2H)-one
869897-98-3

6-Methoxy-3-Methylisoquinolin-1(2H)-one synthesis

6synthesis methods
4-acetyl-6-methoxy-1H-2-benzopyran-1,3(4H)-dione

918662-40-5
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6-Methoxy-3-Methylisoquinolin-1(2H)-one

869897-98-3
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Yield:869897-98-3 270 mg (74%)

Reaction Conditions:

in ammonium hydroxide;

Steps:

15.2 Step 2

Step 2 6-Methoxy-3-methylisoquinolin-1(2H)-one. The cyclic anhydride of step 1 (405 mg; 1.73 mmol) was dissolved in aqueous ammonium hydroxide, and heated at reflux for 1.5 hours. The mixture was cooled to room temperature and the solid was filtered then dried overnight to give 270 mg (74%) of 6-methoxy-3-methylisoquinolin-1(2H)-one.

References:

US2009/203629,2009,A1