Взаємодія 1-ациламіно-2,2-дихлороетенілфосфонію хлоридів з моноетаноламіном та n-метилмоноетаноламіном

• Дата: 2016
• Автори: Abdurakhmanova, E. R., Holovchenko, О. V., Brovarets, V. S.
• Формат: Стаття
• Мова: Ukrainian
• Опубліковано: National University of Pharmacy 2016
• Теми: 1-ациламіно-2; 2-дихлороетенілтрифенілфосфонію хлориди; 4-фосфорильовані 5-аміно-1; 3-оксазоли; 1; 3-оксазолідин-2-ілідени; моноетаноламін; N-метилмоноетаноламін; аміноспирти; УДК 547.435 547.787
• Онлайн доступ: https://ophcj.nuph.edu.ua/article/view/ophcj.16.904
• Назва журналу: Journal of Organic and Pharmaceutical Chemistry

This paper presents the synthesis of new derivatives of 5-amino-2R-1,3-oxazol-4-iltriphenylphosphonium saltsand (acylamino-(3-methyl-1,3-oxazolidin-2-ylidene)methyl)triphenylphosphonium salts previously unknown. It has been shown that the interaction of available 1-acylamino-2,2-dichloroethenyltriphenylphosphonium chlorides with monoethanolamine leads only to formation of 4-phosphorylated 1,3-oxazole derivatives, which contain a residue of 2-hydroxyethylamine in position 5. Under similar conditions N-metylmonoethanolamine with 1-acylamino-2,2-dichloroethenyltriphenylphosphonium chlorides forms phosphorylated 2-methylen-1,3-oxazolidine derivatives, which contain the triphenylphosphonium group in the side chain. The structure of the new 2-R-5-(2-hydroxyethylamino)-1,3-oxazol-4-yltriphenyl- phosphonium perchlorates and (acylamino(3-methyl-1,3- oxazolidin-2-ylidene)methyl) triphenylphosphonium perchlorates has been reliably proven by elemental analysis, IR-, 1H NMR-, 13C-, 31P-spectroscopy and mass-spectrometry. In particular, derivatives of 1,3-oxazole have characteristic signals of carbon nuclei in 13C NMR-spectra, which appear as doublets due to the spin-spin interaction with a phosphorus nucleus. These signals are absent in 2-methylen-1,3-oxazolidine derivatives, but for these derivatives the signals of acylamino residues are characteristic. The synthetic method proposed is convenient and preparative since the transformation takes place in mild conditions to provide the final products with medium to high yields and does not require time-consuming purification operations of the final products.