Volume 26, Issue 6 pp. 405-410
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Synthesis of Substituted N-Formylaminomethylenediphosphonates and Their Derivatives

Andrey A. Prishchenko

Corresponding Author

Andrey A. Prishchenko

Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119991, Russia

Correspondence to: Andrey A. Prishchenko; e-mail: [email protected].Search for more papers by this author
Mikhail V. Livantsov

Mikhail V. Livantsov

Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119991, Russia

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Olga P. Novikova

Olga P. Novikova

Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119991, Russia

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Ludmila I. Livantsova

Ludmila I. Livantsova

Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119991, Russia

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Gleb M. Averochkin

Gleb M. Averochkin

Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119991, Russia

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Valery S. Petrosyan

Valery S. Petrosyan

Department of Chemistry, M. V. Lomonosov Moscow State University, Moscow 119991, Russia

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First published: 16 June 2015
Citations: 14

Contract grant sponsor: Russian Foundation for Basic Research.

Contract grant numbers: 14-03-00001 and 15-03-00002.

ABSTRACT

The convenient methods for the synthesis of new trimethylsilyl esters of aminomethylenediphosphonic acids are elaborated. The new substituted N-formylaminomethylenediphosphonates are obtained via the interaction of trimethylsilyl esters of methylenediphosphonic acids with a mixture of triethyl orthoformate and ethanol. Also boron trifluoride–diethyl etherate as an effective catalyst is used for the interaction of hydrochlorides of ethoxymethylene imines with diethyl trimethylsilyl phosphite. The corresponding aminomethylenediphosphonic acids are presented.

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