Ethyl isocyanoacetate → Ethyl4,5-dihydro-4-methyl-5-oxo-6-bromo-imidazo(1,5-a)quinazoline-3-carboxylate

Reaction equation

[CH3:1][N:2]1[C:11](=[O:12])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[Br:13])[NH:4][C:3]1=O.[N+:15]([CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])#[C-:16]>>[CH3:1][N:2]1[C:11](=[O:12])[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][C:9]=2[Br:13])[N:4]2[CH:16]=[N:15][C:17]([C:18]([O:20][CH2:21][CH3:22])=[O:19])=[C:3]12

Participants

Reactant 2

HCID 533707Ethyl isocyanoacetate

HCID 14460512HCID 14460512, compound

Product 1

HCID 21287685Ethyl4,5-dihydro-4-methyl-5-oxo-6-bromo-imidazo(1,5-a)quinazoline-3-carboxylate

Procedure

M.p. 272° C. by reaction between 3-methyl-5-bromo-1,2,3,4-tetrahydro-2,4-dioxo-quinazoline and ethyl isocyanoacetate.

Sources & evidence

ORD record: ord-29ffd01484984db9b479819a9b21c120
Source dataset: uspto-grants-1988_10
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04780539

Reaction notes

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