2-Imidazolidinone

2-Imidazolidinone Imidazolidin-2-one Ethyleneurea 2-imidazolidone imidazolidin-2-one 1,3-ethyleneurea 2-Imidazolidinone structure.svg 150px 2-Imidazolidinone structure 120-93-4 37001 12034 8142 204-436-4 8453 2K48456N55 O=C1NCCN1 InChI=1S/C3H6N2O/c6-3-4-1-2-5-3/h1-2H2,(H2,4,5,6) YAMHXTCMCPHKLN-UHFFFAOYSA-N 3 6 2 1 White to off-white crystalline solidPubChem: 2-Imidazolidinone. https://pubchem.ncbi.nlm.nih.gov/compound/2-Imidazolidinone 1.15 g/cm3Chemical data: Chemsrc / ChemicalBook listings. https://www.chemsrc.com/en/cas/120-93-4_243754.html 129–132 °CPubChem: melting point listing. https://pubchem.ncbi.nlm.nih.gov/compound/2-ImidazolidinoneTCI Chemicals product page. https://www.tcichemicals.com/CH/en/p/I0005 Soluble in water and methanol Sigma-Aldrich / supplier SDS listings for 2-imidazolidinone. Sigma-Aldrich SDS; Merck Millipore SDS. 07 Warning H315 H319 H335 P261 P264 P280 P305+P351+P338 P302+P352 Sigma-Aldrich SDS Irritant 2-Imidazolidinone (imidazolidin-2-one) is a cyclic urea derivative. It is used as an intermediate in organic synthesis and as a building block for substituted imidazolidinones. Uses 2-Imidazolidinone is principally used as a formaldehyde scavenger in amino-resin systems and textile finishes. It reacts with free formaldehyde and with pendant N-methylol groups to form stable adducts, lowering free formaldehyde content and emissions. Applications include incorporation as an internal additive in urea-formaldehyde adhesives or as a post-treatment in textile finishing baths and on wood-based panels. Reported usage levels vary by application, commonly around 5–10% by weight relative to resin solids for internal scavenging, and 10–40% in commercial aqueous scavenger concentrates for surface or post-treatment applications. Careful optimization of resin formulation and curing is necessary to avoid adverse effects on bonding strength and cure behavior.CN1739821A - Ethylene urea amino derivative formaldehyde scavenger. https://patents.google.com/patent/CN1739821A/en Preparation 2-Imidazolidinone can be obtained by the direct condensation of ethylenediamine with urea or dimethyl carbonate: C2H4(NH2)2 + CO(NH2)2 → C3H6N2O + 2 NH3 H2N–CH2–CH2–NH2 + (MeO)2CO → C3H6N2O + 2 MeOH It can also be obtained by the direct condensation of ethylene glycol and urea:US2526757A - Preparation of ethyleneurea. https://patents.google.com/patent/US2526757A/enUS2416046A - Process for the preparation of ethyleneurea. https://patents.google.com/patent/US2416046A/en CO(NH2)2 + HO–CH2–CH2–OH → C3H6N2O + 2 H2O References Category:Ureas Category:Imidazolidinones