Synthesis and crystal structure of 7-(diethylamino)-2-ethoxy-3-(4-nitrophenyl)- 2H-benzo[e] [1,2]oxaphosphinin 2-oxide

TitleSynthesis and crystal structure of 7-(diethylamino)-2-ethoxy-3-(4-nitrophenyl)- 2H-benzo[e] [1,2]oxaphosphinin 2-oxide
Publication TypeJournal Article
Year of Publication2015
AuthorsKulai, IV, Mallet-Ladeira, S, Kovtunenko, VA, Voitenko, ZV
Abbreviated Key TitleDopov. Nac. akad. nauk Ukr.
DOI10.15407/dopovidi2015.12.083
Issue12
SectionChemistry
Pagination83-89
Date Published12/2015
LanguageUkrainian
Abstract

A new member of 3-aryl phosphacoumarins has been synthesized by the Knoevenagel condensation of 4-(diethylamino)salicylaldehyde and diethyl 4-nitrobenzylphosphonate and the further cyclization. The title compound was fully characterized by NMR spectroscopy, high-resolution massspectrometry, and single crystal X-ray diffraction. Comparison of the molecular structures of synthesized phosphacoumarin and analogous coumarin is made by basing on the obtained data. Main structure features of the benzo[e] [1,2]oxaphosphinin fragment were analyzed in terms of the phosphorus influence.
Keywordsorganophosphorus, oxaphosphinin, phosphacoumarin, X-ray structure
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