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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1444477Generated: October 30, 2026

5-Amino-2-methylphthalazin-1-one → 5-{[6-Fluoro-2-hydroxy-4,4-dimethyl-5-methoxy-2-(trifluoromethyl)-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-2-methylphthalazin-1-one

https://huagongshe.com/reaction/1444477

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-Amino-2-methylphthalazin-1-oneHCID 17985045—
Reactant4-(3-Fluoro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentanalHCID 17989086—
CatalystTitanium TetrachlorideHCID 24193—
Product5-{[6-Fluoro-2-hydroxy-4,4-dimethyl-5-methoxy-2-(trifluoromethyl)-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-2-methylphthalazin-1-oneHCID 686801704%

Reaction Steps

Analogously to Example 10, the corresponding imine is produced starting from 200 mg of 4-(3-fluoro-2-methoxyphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentanal and 114 mg of 5-amino-2-methyl-phthalazin-1-one. As in Example 3, 50 mg of imine is reacted by reaction with 0.23 ml of titanium tetrachloride, and 12 mg of the title compound is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07662821B2
Source datasetuspto-grants-2010_02
ORD IDord-5c33047cb4984cd289d309e03ae2b90b
Source noteuspto-grants-2010_02