Lemos, A.Lopes, Marta2014-12-162014-12-1620081042-6507AUT: ALE01411http://hdl.handle.net/10400.1/5690Transient azovinylphosphonates, generated in situ by base induced dehydrohalogenation of the corresponding 2-bromo- and 2-chloro-acetylphosphonate- tertbutoxycarbonyl hydrazones are intercepted by electron rich alkenes and heterocycles in hetero Diels-Alder reactions, producing tetrahydopyridazine-3-phosphonates or open chain α-hydrazono phosphonates.engα-hydrazonophosphonates3-phosphono-1,2-diaza-1,3-butadienesAzovinylphosphonatesAddition-eliminationCycloadditionTetrahydropyridazine-3-phosphonatesReactions of azovinylphosphonates with nucleophilic alkenes and heterocycles: synthesis of Tetrahydropyridazine-3-phosphonate and 2-Substituted-1-hydrazonoethylphosphonate derivativesjournal article2014-12-11http://dx.doi.org/10.1080/10426500802028393