Search results for "Curtius rearrangement"

showing 2 items of 2 documents

Poly(4-vinylbenzoyl azide): A New Isocyanato Group Generating Polymer

2007

4-Vinylbenzoyl azide was synthesized from p-vinylbenzoic acid and polymerized by free radical polymerization. The obtained polymer contained acyl azide groups which were thermally transformed to the corresponding isocyanato groups. Reactions on these polymers with ethanol, hydroxyethyl methacrylate and 1-pyrene-butanol proceeded quantitatively. Time-resolved FT-IR studies of the reactions with ethanol were carried out by varying the concentration and temperature. The effect of the solvent polarity on the Curtius rearrangement was investigated.

chemistry.chemical_classificationPolymers and PlasticsOrganic ChemistryRadical polymerizationPolymer(Hydroxyethyl)methacrylateAcyl azidechemistry.chemical_compoundchemistryPolymerizationPolymer chemistryMaterials ChemistryAzideSolvent effectsCurtius rearrangementMacromolecular Rapid Communications
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Efficient synthesis of novel pyrido[3,2-d]pyrimidine-2,4-diones

2003

Abstract A series of pyrido[3,2- d ]pyrimidine-2,4-diones 5a – g have been synthesized through conversion of 2,3-pyridinedicarboxylic anhydride 1 into half-ester 2 , subsequent Curtius rearrangement and further reaction with amino acids.

chemistry.chemical_classificationchemistry.chemical_compoundPyrimidinechemistryStereochemistryOrganic ChemistryDrug DiscoveryOrganic chemistryGeneral MedicineBiochemistryCurtius rearrangementAmino acidTetrahedron Letters
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