Piperidine → 6-Methoxy-7-(3-piperidinopropoxy)-3,4-dihydroquinazolin-4-one

HRID 384828Notes

Reaction equation

[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH2:14][CH2:15][CH2:16]Cl)[N:9]=[CH:8][NH:7][C:6]2=[O:18].[NH:19]1[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]1>C(O)C>[CH3:1][O:2][C:3]1[CH:4]=[C:5]2[C:10](=[CH:11][C:12]=1[O:13][CH2:14][CH2:15][CH2:16][N:19]1[CH2:24][CH2:23][CH2:22][CH2:21][CH2:20]1)[N:9]=[CH:8][NH:7][C:6]2=[O:18]

Participants

Conditions

Temperature: 80 °C

Procedure

In a 5 mL volume glass vessel equipped with a stirrer and a thermometer were placed 1.0 g (3.7 mmol) of 6-methoxy-7-(3-chloropropoxy)quinazolin-4-one prepared by procedures similar to those of Reference Example V-1, 1.62 g (19 mmol) of piperidine, and 10 mL of ethanol. The resulting mixture was stirred at 80° C. for 5 hours. After the reaction was complete, the reaction mixture was analyzed by high performance liquid chromatography (absolute quantitative analysis). There was produced 1.02 g (reaction yield: 87%) of 6-methoxy-7-(3-piperidinopropoxy)quinazolin-4-one.

Workup

customIn a 5 mL volume glass vessel equipped with a stirrer

Sources & evidence

ORD record: ord-7c13a543139146fea757561596c4038a
Source dataset: uspto-grants-2013_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08367824B2

Reaction notes

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