Alkyl nitrite-metal halide deamination reactions. 3. Arylation of olefinic compounds in the deamination of arylamines by alkyl nitrites and copper(II) halides. A convenient and effective variation of the Meerwein arylation reaction
Direct Conversion of Arylamines to the Halides by Deamination with Thionitrite or Related Compounds and Anhydrous Copper(II) Halides
作者:Shigeru Oae、K\={o}ichi Shinhama、Yong Hae Kim
DOI:10.1246/bcsj.53.1065
日期:1980.4
Reactions of various arylamines with either t-butyl thionitrite, t-butyl thionitrate, or p-toluenesulfonyl nitrite in the presence of anhydrous copper(II) halides under mild conditions gave corresponding aryl halides in good yields. This reaction in the presence of such olefins as acrylonitrile, styrene, and acrylic acid gave the corresponding 2-aryl-1-haloethanes as the main products. t-Butyl thionitrite
在无水卤化铜 (II) 存在下,各种芳基胺与亚硫硝酸叔丁酯、亚硫硝酸叔丁酯或对甲苯磺酰亚硝酸酯在温和条件下反应,以良好的收率得到相应的芳基卤化物。在丙烯腈、苯乙烯和丙烯酸等烯烃存在下,该反应得到相应的 2-芳基-1-卤代乙烷作为主要产物。由于硫-氮键较弱,亚硝酸叔丁酯、亚硝酸叔丁酯和对甲苯磺酰亚硝酸酯是比亚硝酸烷基酯或硝酸烷基酯更好的脱氨基试剂。
Titanium Tetrachloride-Mediated Carbon-Carbon Chlorocyanoethylation of Anisole: Synthesis of Tyrosine Derivatives
作者:Braja G. Hazra、Vandana S. Pore、Sourav Basu
DOI:10.1080/00397919508011832
日期:1995.9
Abstract Chlorocyanoethylation of anisole with 2-chloroacrylonitrile in presence of titanium tetrachloride furnished α-chloro-β-(4-methoxyphenyl)propionitrile. This on simple reaction sequence was converted to (±) methyl-α-amino-β-(4-methoxyphenyl)propionate, a tyrosine derivative.
Chloride based ionic liquids as promoting agents for Meerwein reaction in solventless conditions
作者:Piero Mastrorilli、Cosimo F. Nobile、Nicola Taccardi
DOI:10.1016/j.tetlet.2006.04.072
日期:2006.7
Chloride based ionic liquids were used as chloride source in Meerweinreaction either in [bmim]X (bmim = 1-butyl-3-methylimidazolium, X = BF4, PF6) as solvents or in solventless conditions. Satisfactory yields (49–71%) with diversely substituted diazonium salts were achieved by using 1,3-dibutylimidazolium chloride in the presence of a bimetallic Zn/Cu catalyst.