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ChemicalBook CAS DataBase List methyl 5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylate
851784-90-2

methyl 5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylate synthesis

2synthesis methods
5,7-dichloro-3,4-dihydro-2,6(1H)-Isoquinolinedicarboxylic acid, 2-(1,1-dimethylethyl) 6-methyl ester

851784-80-0
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methyl 5,7-dichloro-1,2,3,4-tetrahydroisoquinoline-6-carboxylate

851784-90-2
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Yield: 100%

Reaction Conditions:

with hydrogenchloride in 1,4-dioxane;dichloromethane at 20; for 2 h;

Steps:

3.d
d) A solution of 1. 1 (3.60 g, 10 mmol) in DCM (20 mL) was treated with HC1 in 1,4-dioxane (4.0 M, 10 mL) at room temperature. After 2 hours, the reaction was concentrated to give compound 3.5 in quantitative yield.

References:

SUNESIS PHARMACEUTICALS, INC. WO2005/44817, 2005, A1 Location in patent:Page/Page column 82-83

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