Synthesis of Functionalized Novel alpha-Amino-beta-alkoxyphosphonates through Regioselective Ring Opening of Aziridine-2-phosphonates

Polat-Cakir, Sidika
Beksultanova, Nurzhan
Doğan, Özdemir
Aziridines are highly useful compounds as building blocks for the synthesis of important organic compounds. Amino acid synthesis by aziridine ring opening reaction is a good example to the use of aziridines. Although this reaction is studied by many groups, the synthesis of amino phosphonic acids is less explored. In this study, we have carried out the ring opening reaction of aziridinyl phosphonates with a variety of alcohols including the more functional propargylic and allylic alcohols. These reactions provided functionalized alpha-amino-beta-alkoxyphosphonates in 40-91 % yield.


Synthesis and enzymatic resolution of various cyclopentenoid and cyclohexenoid type compounds
İyigün, Çiğdem; Tanyeli, Cihangir; Department of Chemistry (2005)
The aim of this thesis is to synthesize enantiomerically enriched cyclopentenoid and cyclohexenoid type of compounds with quaternary carbon stereocenters that are the simplest precursors of the complex natural products. The first part of the study involves the preparation of ?'-acetoxy ?'-substituted ?,β-unsaturated cyclic ketones. Methylation, ethylation, benzylation and allylation of cyclohexenone and cyclopentenone derivatives are performed. Then, these compounds are regioselectively oxidized at the ?'-p...
Synthesis of ferrocenyl cycloheptadienones
Açıkgöz, Canet; Zora, Metin; Department of Chemistry (2005)
Synthesis of seven-membered ring systems such as cycloheptadienones has attracted a great deal of attention in organic chemistry since they are present in a variety of biologically important molecules. Incorporation of the essential structures of such compounds with a ferrocene moiety instead of an aryl group could provide subtances with enhanced antitumor activities since some ferrocene derivatives have already proved to be active against a number of tumors. To develop a ferrocenyl-substituted seven-member...
Synthesis of chiral lactones via the baeyer villiger oxidation of cyclic aromatic acetoxy ketones novel annulation reactions of 2-propynyl-1,3-dicarbonyl compounds to form pyrroles addition of acyl phosphonates to diethyl cyanophosphonate (depc)
Aybey, Asuman; Demir, Ayhan Sıtkı; Department of Chemistry (2009)
Chiral Baeyer-Villiger (BV) oxidation of cyclic ketones allows rapid access to asymmetric lactones as valuable intermediates in organic chemistry and frequently encountered precursors in enantioselective synthesis. In the first part, BV oxidation of functionalized ketones, especially cyclic -hydroxy and acetoxy ketones is described which could be a straightforward route to the -hydroxy lactones and -hydroxyalkanoic acid derivatives. The -acetoxylation of indanone, tetralone and chromanone derivatives by usi...
Coupling of ferrocenyl chromium carbene complex with cyclobutenediones
Zora, Metin; Bekir Peynircioglu, N. (Elsevier BV, 2002-08-15)
The coupling of ferrocenyl chromium carbene complex with cyclobutenediones leads to ferrocenyl-substituted 5-alkylidenefuranones and 4-cyclopentene-1,3-diones, methyl ferrocenoate and acetylferrocene in varying amounts. The scope and limitations of these processes are investigated. In comparison with the phenyl analog, ferrocenyl chromium carbene complex has been found to be less reactive. This is also supported by PM3 calculations. The coupling of ferrocenyl chromium carbene complex with cyclobutenediones...
Synthesis, characterization, crystal and molecular structure of 1,5-Dihydro-2H-cyclopenta[1,2-b : 5,4-b ']dipyridin-2-imine
Baysal, Akin; Durap, Feyyaz; Gumgum, Bahattin; Yildirim, Leyla T.; Ulku, Dincer; Boga, Ayse Dilek; Özkar, Saim (Wiley, 2007-01-01)
The reaction of 1,5-diliydro-2H-cyclopenta[1,2-b:5,4-b'ldipyridin-2-one (3) with an alkylamine (butvlamine, hexylamine or ethylenediamine) yields, quite unexpectedly and in the absence of catalyst, the novel compound 1,5-dihydro-2H-cyclopentafl,2-b:5.4-b']dipyridin-2-imine (4) as the sole, analytically pure, solid product, which was fully characterized. The structure of 4 was unequivocally solved by single-crystal X-ray-diffraction analysis. The compound crystallizes in a monoclinic cell (space group P 2(1/...
Citation Formats
S. Polat-Cakir, N. Beksultanova, and Ö. Doğan, “Synthesis of Functionalized Novel alpha-Amino-beta-alkoxyphosphonates through Regioselective Ring Opening of Aziridine-2-phosphonates,” HELVETICA CHIMICA ACTA, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: