5-Amino-2-methylphthalazin-1-one → 5-{[5-Methoxy-2-hydroxy-2-(trifluoromethyl)-4,4,7-trimethyl-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-2-methylphthalazin-1-one

HRID 1869434Notes

Reaction equation

HRID 1869434 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[CH:5][C:4]=1[C:10]([CH3:21])([CH3:20])[CH2:11][C:12]([OH:19])([C:15]([F:18])([F:17])[F:16])[CH:13]=O.[NH2:22][C:23]1[CH:32]=[CH:31][CH:30]=[C:29]2[C:24]=1[CH:25]=[N:26][N:27]([CH3:34])[C:28]2=[O:33]>ClCCl.[Ti](Cl)(Cl)(Cl)Cl>[CH3:1][O:2][C:3]1[CH:8]=[C:7]([CH3:9])[CH:6]=[C:5]2[C:4]=1[C:10]([CH3:20])([CH3:21])[CH2:11][C:12]([OH:19])([C:15]([F:18])([F:16])[F:17])[CH:13]2[NH:22][C:23]1[CH:32]=[CH:31][CH:30]=[C:29]2[C:24]=1[CH:25]=[N:26][N:27]([CH3:34])[C:28]2=[O:33]

Participants

5

Reactant 2

HCID 179850455-Amino-2-methylphthalazin-1-oneHCID 179891274-(2-Methoxy-4-methylphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)pentanal

Product 1

HCID 686791155-{[5-Methoxy-2-hydroxy-2-(trifluoromethyl)-4,4,7-trimethyl-1,2,3,4-tetrahydronaphthalen-1-yl]amino}-2-methylphthalazin-1-oneYield 3.3%

Reagents, catalysts & solvents 2

HCID 24193Titanium TetrachlorideCatalystHCID 6344DichloromethaneSolvent

Procedure

Analogously to Example 10, the corresponding imine is produced starting from 500 mg of 4-(2-methoxy-4-methylphenyl)-2-hydroxy-4-methyl-2-(trifluoromethyl)-pentanal and 288 mg of 5-amino-2-methylphthalazin-1-one. As in Example 3, 90 mg of the imine is reacted by reaction with 0.4 ml of titanium tetrachloride (1 M in dichloromethane) in 5 ml of dichloromethane, and 25 mg of the title compound is obtained.

Sources & evidence

ORD record
ord-c7cd33fa613d4fdf95d05eb6bbfee63c
Source dataset
uspto-grants-2009_12
Patent number
US07638515B2

Reaction notes

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