Chemistry is traditionally divided into organic and inorganic chemistry. category: oxazolidine, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 497-25-6
Preparation of N-substituted imidazolidinones and N-substituted 2-thionimidazolidinones
The invention is a process for the preparation of N-substituted imidazolidinones and N-substituted 2-thionimidazolidinones which comprises contacting an oxazolidinone with a compound containing a nitrogen directly bonded to a carbonyl or a thiocarbonyl group in the presence of a Lewis acid catalyst or the hydrate of a Lewis acid catalyst under conditions such that an N-substituted imidazolidinone or N-substituted 2-thionimidazolidinone is prepared. The compound containing a nitrogen directly bonded to a carbonyl or a thiocarbonyl group is an isocyanate or isothiocyanate or a compound wherein the nitrogen is reactive and the carbonyl or thiocarbonyl group is further bonded to a substituent by a bond which is clevable under the reaction conditions. The Lewis acid catalyst corresponds to the formula wherein M is a group IB-VIIIB, IIIA or IVA element with the proviso that M is not C or Si; X is a halogen; and n is 2, 3 or 4.
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Reference£º
Oxazolidine – Wikipedia,
Oxazolidine | C3H251NO – PubChem