1498-37-9Relevant academic research and scientific papers
One-pot synthesis of 2,4,5-triaryl-1 H -imidazoles from arylaldehydes, benzyl alcohols, or benzyl halides with hexamethyldisilazane in molten tetrabutylammonium bromide
Salehi, Javad,Khodaei, Mohammad M.,Khosropour, Ahmad R.
, p. 459 - 462 (2011)
A simple and efficient method for the synthesis of 2,4,5-triaryl-1H- imidazole derivatives in good to excellent yields by reaction between hexamethyldisilazane and arylaldehydes, benzyl alcohols, benzyl halides in molten tetrabutylammonium bromide as an inexpensive and non toxic solvent has been developed. The remarkable advantages of this method are the simple workup procedure, high yields of products, the use of an ionic liquid as a green solvent, and the availability of reagents. Georg Thieme Verlag Stuttgart - New York.
Hexaaryl bis-imidazole photoinitiator and application thereof
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Paragraph 0171-0174, (2020/10/16)
The invention discloses a hexaaryl bis-imidazole photoinitiator. The molar ratio of a red shift substituent group in all substitutable sites of the hexaaryl bis-imidazole photoinitiator is 6-16%. Whenthe photoinitiator is applied to a photosensitive resin composition, the photoinitiator is moderate in sensitivity, good in solubility and excellent in resolution ratio and developability, inverted trapezoids cannot appear during development, the photoinitiator has good hydrophilicity, the amount of sludge in a developing solution during recycling can be remarkably reduced, and the developing solution can be repeatedly and effectively used for multiple times. The invention also provides a photosensitive resin composition containing the photoinitiator, and an application of the composition.
Photocatalytic coupling of amines to imidazoles using a Mo-ZnIn2S4 catalyst
Wang, Min,Li, Lihua,Lu, Jianmin,Luo, Nengchao,Zhang, Xiaochen,Wang, Feng
, p. 5172 - 5177 (2017/11/09)
Substituted imidazoles are traditionally synthesized by co-condensation of multiple feedstocks. Herein, we report a new route for the synthesis of substituted imidazoles via photocyclization of readily available amines at room temperature. The reaction is achieved by the visible-light-induced C-C/C-N bond coupling and subsequent dehydrogenation reaction over Mo-ZnIn2S4 as a heterogeneous photocatalyst. A wide range of amines were converted into the corresponding tri- and tetra-substituted imidazoles with up to 96% total yields. The simplicity, high efficiency and mild condition merits of this new reaction will enable it to be useful in synthetic transformations.
Efficient synthesis of 2,4,5-triaryl-1H-imidazoles from aromatic aldehydes with HMDS catalyzed by N-bromosaccharin (NBSa)
Sedrpoushan, Alireza,Joshani, Zinab,Fatollahi, Leila
, p. 287 - 292 (2014/05/20)
A one-pot efficient procedure for the synthesis of 2, 4, 5-triaryl-1H-imidazole derivatives by the reactions of hexamethyldisilazane and arylaldehydes in the presence of N-bromosaccharin (NBSa) is studied. This new method offers several advantages, such as excellent yields, easy workup, short reaction times, and simple procedure.
Convenient one-pot synthesis of 2,4,5-triaryl-1H-imidazoles from arylaldehydes, benzyl alcohols, or benzyl halides with HMDS in the presence of molecular iodine
Veisi, Hojat,Khazaei, Ardashir,Heshmati, Leila,Hemmati, Saba
experimental part, p. 1231 - 1234 (2012/07/14)
A one-pot efficient procedure for the synthesis of 2,4,5-triaryl-1 H-imidazole derivatives in good to excellent yields by reaction between hexamethyldisilazane and arylaldehydes, benzyl alcohols, benzyl halides in the presence of molecular iodine has been developed. The remarkable advantages of this method are the simple workup procedure, high yields of products, and the availability of reagents.
