Phosphorus, Sulfur, and Silicon

Synthesis of the Phosphonoanalogue of Benzo [c] pyroglutamic Acid

GO Kachkovskyi, OI Kolodiazhnyi

Index: Kachkovskyi, Georgiy O.; Kolodiazhnyi, Oleg I. Phosphorus, Sulfur and Silicon and the Related Elements, 2010 , vol. 185, # 12 p. 2441 - 2448

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Citation Number: 5

Abstract

Phosphonic analogue 1 of benzo [c] pyroglutamic acid was synthesized by three-step synthesis starting from N-tert-butylphtalimide and triethylphosphite. The acid-catalyzed, oxidative cascade conversion of phosphonate 11 to phthalimide and phosphoric acid diethyl ester was observed. A mechanism for this transformation was proposed.

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