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ChemicalBook CAS DataBase List 2(1H)-Quinolinone,8-bromo-1-methyl-(9CI)
67805-53-2

2(1H)-Quinolinone,8-bromo-1-methyl-(9CI) synthesis

2synthesis methods
67805-67-8 Synthesis
8-BROMOQUINOLIN-2(1H)-ONE

67805-67-8
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$50.00/100mg

2(1H)-Quinolinone,8-bromo-1-methyl-(9CI)

67805-53-2
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Yield:-

Reaction Conditions:

with sodium hydroxide;dimethyl sulfate in methanol;water;

Steps:

2 (Procedure B)

EXAMPLE 2 (Procedure B) One gram of sodium hydroxide was dissolved in 15 ml. of methanol, and 4.5 g. of 8-bromocarbostyril was added to the solution at room temperature. Thereafter, 2.6 g. of dimethyl sulfate was added dropwise thereto. The reaction mixture was boiled for 3 hours, cooled to room temperature and poured into 50 ml. of water. The precipitated crystals were filtered, dried and recrystallized from ethanol to obtain 3.9 g. of 8-bromo-1-methylcarbostyril (m.p. 106°-107° C.).

References:

US4349554,1982,A

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