Reactions of Azovinylphosphonates with Nucleophilic Alkenes and Heterocycles: synthesis of Tetrahydropyridazine-3-phosphonate and 2-Substituted-1-hydrazonoethylphosphonate derivatives

Lemos, A.; Lopes, Marta

http://hdl.handle.net/10400.1/1048

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Authors

Lemos, A.

Lopes, Marta

Abstract(s)

Transient 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.

Keywords

Azoalkene Cicloadição Hydrazonophosphonate Aminofosfonatos Heterocycles Piridazina fosfonato

URI

http://hdl.handle.net/10400.1/1048

Citation

Lemos, A.; Lopes, Marta. Reactions of Azovinylphosphonates with Nucleophilic Alkenes and Heterocycles: synthesis of Tetrahydropyridazine-3-phosphonate and 2-Substituted-1-hydrazonoethylphosphonate derivatives. Phosphorus, Sulfur Silicon Relat. Elem. 183, 11, 2882-2890, 2008.

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