N-Imidoyl sulfoximide (7) reacted with diphenylcyclopropenone (2) at 130 °C to yield a mixture of 1,2-disubstituted 5,6-diphenyl-4(1H)-pyrimidinone (6) and N-(4-oxo-2-pyrrolin-5-yl)sulfoximide (10), which might be formed by [3+3] and [2+3] cycloadditionreactions between 2 and 7. The yields of 6 and 10 depended on the electronic and steric effects of the substituents of 7.
Reaction of Amidrazones with 2,3-Diphenylcyclopropenone: Synthesis of 3-(aryl)-2,5,6-Triphenylpyrimidin-4(3H)-ones
作者:Ashraf A. Aly、Mohamed Ramadan、Mohamed Abd Al-Aziz、Hazem M. Fathy、Stefan Bräse、Alan B. Brown、Martin Nieger
DOI:10.3184/174751916x14743924874916
日期:2016.10
Amidrazones react with 2,3-diphenylcyclopropenone to give 3-aryl-2,5,6-triphenylpyrimidin-4(3H)-one derivatives in good yields. The synthesised compounds were characterised by spectroscopic tools and their structures confirmed by X-ray crystallography. A rational mechanism of formation of the products is presented.
脒腙与 2,3-二苯基环丙烯酮反应,以良好的收率得到 3-芳基-2,5,6-三苯基嘧啶-4(3H)-one 衍生物。合成的化合物通过光谱工具进行表征,并通过 X 射线晶体学确认其结构。提出了产物形成的合理机制。
Unusual Reactivity of 2,3-diphenylcyclopropenone towards <i>N</i>-imidoylthioureas; Facile Synthesis of 3-aryl-2,5,6-triphenylpyrimidin-4(3<i>H</i>)-one (PART III)
作者:Ashraf A. Aly、Ahmed M. NourEl-Din、Moshen A.-M. Gomaa、Alan B. Brown、Magda S. Fahmi
DOI:10.3184/030823407x234563
日期:2007.8
2,3-Diphenylcyclopropenone (1) reacts with N-imidoylthioureas 2a–e to form the pyrimidin-4(3 H)-ones 5a–e. The reaction mechanism can be described as due to stepwise addition accompanied by elimination of phenyl isothiocyanate.