Ethyl isocyanoacetate → U 82249

HRID 358955Notes

Reaction equation

C([N:5]1[C:14]2[C:9](=CC=CC=2)[N:8]2[CH:15]=N[C:17]([C:18](OCC)=O)=[C:7]2[C:6]1=[O:23])(C)(C)C.[N+:24](CC(OCC)=O)#[C-].[C:32]([N:36]1[C:45]2[C:40](=[CH:41][CH:42]=[CH:43][CH:44]=2)[NH:39][C:38](=O)[C:37]1=[O:47])([CH3:35])([CH3:34])[CH3:33]>>[C:32]([N:36]1[C:45]2[C:40](=[CH:41][CH:42]=[CH:43][CH:44]=2)[N:39]2[CH:15]=[N:8][C:9]([C:14]3[N:5]=[C:6]([CH:7]4[CH2:17][CH2:18]4)[O:23][N:24]=3)=[C:38]2[C:37]1=[O:47])([CH3:35])([CH3:34])[CH3:33]

Participants

Reactant 3

HCID 533707Ethyl isocyanoacetate

HCID 106088551-Tert-butyl-1,2,3,4-tetrahydro-2,3-dioxoquinoxaline

HCID 19900389Ethyl 5-tert-butyl-4,5-dihydro-4-oxo-imidazo[1,5-a]quinoxaline-3-carboxylate

Product 1

HCID 131125U 82249

Procedure

Ethyl 5-tert-butyl-4,5-dihydro-4-oxo-imidazo[1,5-a]quinoxaline-3-carboxylate, m.p. 289°-290° C. by reaction between ethyl isocyanoacetate and 1-tert-butyl-1,2,3,4-tetrahydro-2,3-dioxoquinoxaline

Sources & evidence

ORD record: ord-6d0ce0de95934a01b072bbc11b8b64ec
Source dataset: uspto-grants-1991_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04999353

Reaction notes

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