Liu Yazhuo, Zhange Feng, Jiang Xuefeng
2006
Citations
0
Influential Citations
5
Citations
Journal
Heterocyclic Communications
Abstract
Furoin transfers into enol-form under the alkali environment,responds with 1,2 saturated dihalide to obtain 2,3-di(furan-2-yl)-5,6-dihydro-l,4-dioxine.The structure of the compound was confirmed on the bases of elemental analysis and spectral studies.And tetrabutylammonium bromide has been found to promote the yields significantly. Introduction The furol is one kind of extremely important organic industrial chemicals.lt is necessary to carry on the deep processing for furol uses by synthesizing more precious organic industrial chemicals.Because furoin and its derives has sensitization for the photoreactions(l). And the reaction rate of 2,3-diphenyl-5,6-dihydro-l,4-dioxine and the singlet oxygen is very high(2),in photosensitive redox,it may process catching singlet oxygen to evaluates the response efficiency.We first prepare the 2,3-di(furan-2-yl)-5,6-dihydro-l,4-dioxine has the similar structure with it,and higher electron density.lt may provide the higher response activeness.lt is also reported 2,3-diphenyl-5,6-dihydro-l,4dioxine has widely applies in the preparation of antiseptic-germicide(3)(4)(5). Experimental All 'H NMR were performed in CDC13. 'H NMR spectra was recorded using a Bruker spectrometer operating at 500 MHz ('H).Chemical shifts (δ) were given in ppm relative to TMS.Infrared spectra were recorded as KBr pellets in the range 400-4000 cm" on a ATI UNICAM 1000 spectrometer.Melting points were measured in open capillaries and uncorrected.Elemental analysis were performed by CE Instruments elemental analyzer FLASH EA1112.Mass spectra was recorded by Applied Biosystems Q-trap LC/MS/MS SYSTEM. The furfural is the Nongan county furfural factory product and has been purified by distillation in vacuum(6).For all procedures,the submitters employed reagents and solvents as supplied from commercial suppliers without purification.