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ChemicalBook CAS DataBase List 1-chloro-7-methoxyisoquinoline

1-chloro-7-methoxyisoquinoline synthesis

3synthesis methods
-

Yield:53533-54-3 28.3 g (81%)

Reaction Conditions:

in trichlorophosphate;

Steps:

85.c 85c.

85c. 1-Chloro-7-methoxy-isoquinoline: 7-Methoxy-isoquinoline-N-oxide hydrochloride (38.2 g) was added in portions to phosphoryl chloride (275 mL) and the mixture heated at 90° C. for 6 h. Excess of phosphoryl chloride was removed in vacuo. The remaining white solid was washed with water, filtered and dried in vacuo. Yield: 28.3 g (81%); m.p. 77-78° C.

References:

US6194409,2001,B1

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