Aza-Morita-Baylis-Hillman reactions of N-(benzylidene)polyfluoroanilines with methyl acrylate and acrylonitrile
作者:Xinyuan Liu、Zhuo Chai、Gang Zhao、Shizheng Zhu
DOI:10.1016/j.jfluchem.2005.05.010
日期:2005.8
Aza-Morita-Baylis-Hillman reactions of N-(benzylidene)polyfluoroanilines 1 with methyl acrylate or acrylonitrile were studied. It was found that Lewis base, solvent and reaction temperature can significantly affect the reaction. Using 3-hydroxyquinuclidine (3-HQD) as a Lewis base in the reactions of 1 with methyl acrylate in DMF, the normal aza-Morita-Baylis-Hillman adducts 3 were formed in moderate
Sander, Michael; Sundermeyer, Wolfgang, Zeitschrift fur Naturforschung, B: Chemical Sciences, 1998, vol. 53, # 3, p. 296 - 306
作者:Sander, Michael、Sundermeyer, Wolfgang
DOI:——
日期:——
An unexpected highly diastereoselective double Baylis–Hillman reaction of per- (or poly)fluorophenyl aromatic aldimines with methyl vinyl ketone
作者:Xinyuan Liu、Jinwei Zhao、Guifang Jin、Gang Zhao、Shizheng Zhu、Shaowu Wang
DOI:10.1016/j.tet.2005.01.130
日期:2005.4
Aza-Baylis-Hillman reaction of per- (or poly)fluorophenyl aromatic aldimines 1 with methyl vinyl ketone (MVK) was studied. It was found that both the used Lewis base and solvent can significantly affect the reaction. Using triphenylphosphine as a Lewis base, the reaction of 1 with MVK proceeded smoothly to give the normal Baylis-Hillman adduct 2 along with the double Baylis-Hillman adduct 3 as by-product in THE When 1,4-diazabicyclo [2.2.2] octane was used as a Lewis base in DMF, the aza-Baylis-Hillman reaction of 1 with MVK gave the double aza-Baylis-Hillman adduct 3 exclusively in moderate to good yields with excellent diastereoselectivities. The double Baylis-Hillman adduct 3 was conveniently converted to fluorine-containing 4-alkylidene-2-cyclohexen-1-ones under mild reaction conditions in good yields. (c) 2005 Elsevier Ltd. All rights reserved.
Oxidation of pentafluoro-N-(2,3,4,5,6-pentafluorobenzylidene) aniline
作者:N. I. Petrenko、T. N. Gerasimova
DOI:10.1007/bf00947732
日期:1985.3
Fluoroaromatic derivatives. CII. Oxidation of fluorinated benzilidene anilines with peracids
at carbon and nitrogen of the azomethinegroup, with peracids gave products of azomethine bond cleavage. Oxidation of polyfluorinated compounds of the type C6F5CHNC6F4X-4 (X = H, F, CH3, OCH3) with acetic peracid gave stable peroxides of α-(polyfluoroanilido)-2,3,4,5,6-pentafluorobenzyl as the final products. The X-ray structure analysis data and some chemical properties of α-(pentafluoroanilido)- 2
用过酸处理亚苄基苯胺,其在偶氮甲胺基团的碳和氮上具有苯基和多氟苯基取代基,用过酸进行处理,得到了偶氮甲碱键裂解的产物。用乙酸过酸氧化C 6 F 5 CH XNC 6 F 4 X-4(X = H,F,CH 3,OCH 3)类型的多氟化合物可得到稳定的α-(多氟苯胺基)-2,3过氧化物, 4,5,6-五氟苄基化合物为终产物。报道了α-(五氟苯胺基)-2,3,4,5,6-五氟苄基过氧化物的X射线结构分析数据和一些化学性质。