Acetone → 1,3,5-Triazino(1,2-a)benzimidazol-4(1H)-one, 3-ethyl-2,3-dihydro-2,2-dimethyl-

HRID 615077Notes

Reaction equation

HRID 615077 reaction equation
[NH2:1][C:2]1[NH:3][C:4]2[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=2[N:6]=1.[CH2:11]([N:13]=[C:14]=[O:15])[CH3:12].[CH3:16][C:17]([CH3:19])=O>>[CH3:16][C:17]1([CH3:19])[N:13]([CH2:11][CH3:12])[C:14](=[O:15])[N:6]2[C:2](=[N:3][C:4]3[CH:10]=[CH:9][CH:8]=[CH:7][C:5]=32)[NH:1]1

Participants

4

Reactant 3

HCID 180AcetoneHCID 8022Ethyl isocyanateHCID 136242-Aminobenzimidazole

Product 1

HCID 1591031,3,5-Triazino(1,2-a)benzimidazol-4(1H)-one, 3-ethyl-2,3-dihydro-2,2-dimethyl-

Procedure

The title compound was prepared from 2-aminobenzimidazole, acetone and ethyl isocyanate by the procedure described in the first paragraph of Example 1. In this preparation, a 10-N-methylcarbamoyl derivative was not isolated and the subject compound was recovered from the Soxhlet extraction and recrystallized from acetone to give a solid, mp above 300° C. (dec). The confirmatory elemental analysis is shown in Table III.

Workup

  1. customIn this preparation

Sources & evidence

ORD record
ord-5368699101404830b6a894b0833b2ae4
Source dataset
uspto-grants-1985_02
Patent number
US04497650

Reaction notes

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