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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 615285Generated: October 30, 2026

Ethyl isocyanate → 1,3,5-Triazino(1,2-a)benzimidazole-10(2H)-carboxamide,N-ethyl-3,4-dihydro-2,2,3-trimethyl-4-oxo-

https://huagongshe.com/reaction/615285

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl isocyanateHCID 8022—
Reactant1,2-dihydro-2,2,3-trimethyl-1,3,5-triazino[1,2-a]benzimidazol-4(3H)-oneHCID 159120—
Product1,3,5-Triazino(1,2-a)benzimidazole-10(2H)-carboxamide,N-ethyl-3,4-dihydro-2,2,3-trimethyl-4-oxo-HCID 15910796%

Reaction Steps

The title compound was prepared by reaction of 1,2-dihydro-2,2,3-trimethyl-1,3,5-triazino[1,2-a]benzimidazol-4(3H)-one (see Example 1 (B)) with ethyl isocyanate according to the general procedure of Example 10. The product, mp 127°-131° C., was obtained as a white solid in 96% yield. The confirmatory elemental analysis is shown in Table III.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04498920
Source datasetuspto-grants-1985_02
ORD IDord-158113253f1849f7b00db7ce6cb7cf2b
Source noteuspto-grants-1985_02