N,N-diethylbenzeneselenamide: a useful reagent for the direct selenenylation of aldehydes
作者:Martin Jefson、Jerrold Meinwald
DOI:10.1016/s0040-4039(01)81958-4
日期:1981.1
N,N-Diethylbenzeneselenamide reacts selectively with aldehydes, under mild conditions, to give α-phenylselenoaldehydes.
N,N-二乙基苯硒酰胺在温和的条件下与醛选择性反应,生成α-苯基硒醛。
Electrophilic addition to norbornene derivatives containing CF3 and NO2 groups
作者:N. V. Zyk、E. K. Beloglazkina、S. E. Sosonyuk、M. N. Bulanov、R. L. Antipin
DOI:10.1007/s11172-005-0432-z
日期:2005.6
of bicyclo[2.2.1]heptenes containing CF3 or NO2 group in position endo-5 were studied. The sulfenylation and selenenation were accomplished by arylsulfene- and arylselenenamides activated by POHal3 (Hal = Br, Cl), and iodination was performed by KICl2. The reactions are regiospecific and involve an exo-attack of the electrophilic fragment (arylthio or arylseleno group or iodine) on the C=C bond atom
Numerous areneselenenamides derived from ammonia, primary and secondary amines and two N,N-bis(arylseleno)alkylamines have been studied. The selenenamides bearing an electron-withdrawing substituent on the aromatic moiety are stable. The 1H, 13C and 77Se chemical shifts and some coupling constants are reported. For N.N-dialkyl-o-nitrobenzeneselenenamides, the 77Se NMR and the 17O NMR give evidence of an Se-O interaction. In N-alkyl derivatives, a hydrogen bond between the amine group and the ortho-substituent is proposed to explain the deshielding of the selenium nucleus.
Arylselenenation of conjugated dienes by arylselenenamides in the presence of phosphorus(V) oxyhalides
作者:Roman L. Antipin、Elena K. Beloglazkina、Nikolay V. Zyk、Nikolay S. Zefirov
DOI:10.1016/j.tetlet.2006.09.168
日期:2007.1
Arylselenenation of conjugated and non-conjugated dienes by arylselenenamides in the presence of phosphorus(V) oxyhalides has been studied. Reactions with conjugated dienes lead to 1,4-adducts whilst only addition to doublebonds takes place in reactions with non-conjugated dienes.
β-Aminoselenenation of alkenes with arylselenenamides in the presence of sulfamic acid
作者:A. N. Chernysheva、R. L. Antipin、A. A. Borisenko、E. K. Beloglazkina、N. V. Zyk
DOI:10.1007/s11172-011-0034-x
日期:2011.1
13C—1H HMBC of compound 3, intense cross peaks corresponding to the C(1 )—Ha(1) and C(1 )—Hb(1) ( 3J) couplings are present. Besides, in the 13C NMR spectrum of amino selenide 3 satellite peaks were observed corresponding to the 77Se and 13C coupling with J = 65 Hz. Thus, we suggested a convenient method for the syn thesis of primary alkylamines containing arylseleno group in the β position.