Umwandlung von Aldehyden in 2-monosubstituierte Aziridine. Reduktion von α-Chlor, Brom- und Sulfonyloxynitilen mit Lithiumaluminiumhydrid
作者:Kunihiro Ichimura、Masaki Ohta
DOI:10.1246/bcsj.43.1443
日期:1970.5
The reductive cyclization of α-chloro, bromo- and sulfonyloxycarbonitriles are described. α-Chlorocarbonitriles were reduced by lithium aluminum hydride to afford aziridines in sufficient yields. The Walden inversion was found to take place in the cource of the reductive cyclization of S-α-chloroisocapronitrile. We have found the two-step conversion of aldehydes to 2-mono-substituted aziridines which
Photochemistry and Photophysics of Triarylmethane Dye Leuconitriles
作者:Viktor V. Jarikov、Douglas C. Neckers
DOI:10.1021/jo000374a
日期:2001.2.1
photochemical reactions of crystal violet leuconitrile (CVCN) were investigated by the means of product analysis and trapping experiments, laser flash and steady-state photolysis, and steady-state fluorescence. The influence of oxygen on the reaction was examined in detail. The photochemistry of malachite green leuconitrile (MGCN), basic fuchsin leuconitrile (BFCN), and crystal violet leucomethyl (CVMe)
Reaction of (–)-menthyl(S)-toluene-p-sulphinate with nitriles and lithium NN-di-isopropylamide (LDA) in 1:1:1 and 1:2:1 ratios affords opticallyactive α-cyano- and α-cyano-β-imino-sulphoxides, respectively. α-Cyanobenzyl sulphoxide racemizes through a homolytic process in a temperature range (35–50 °C) well below that required for benzyl aryl sulphoxides.
Reactions of Trimethylsilyl Cyanide and<i>N</i>-(Trimethylsilyl) diphenylmethyleneamine with Nitrones and Thermal Decompositions of Their Adducts
作者:Otohiko Tsuge、Satoshi Urano、Takahiko Iwasaki
DOI:10.1246/bcsj.53.485
日期:1980.2
On the other hand, reactions of 1 and 2 with N-(diphenylmethylene)aniline N-oxide or N-(9-fluorenylidene)aniline N-oxide did not give the corresponding 1: 1 adducts, but instead compounds arising from thermaldecomposition of initial 1: 1 adducts were directly obtained. The reaction of 1 with N-(p-diethylaminophenyl)-α-phenylnitrone leading to the corresponding α-imino nitrile is also described.
is markedly significant to pure hydrogenproduction. Regulating the critical steps to precisely design electrode materials to selectively synthesize targeted compounds is highly desirable. Here, inspired by the surfaced adsorbed SeOx2− promoting OER, NiSe is demonstrated to be an efficient anode enabling α-nitrotoluene electrooxidation to E-nitroethene with up to 99 % E selectivity, 89 % Faradaic efficiency
开发具有加速动力学的电化学加碳反应以取代低价值和缓慢的析氧反应(OER)对于纯氢生产具有显着意义。非常需要调节精确设计电极材料以选择性合成目标化合物的关键步骤。在这里,受表面吸附的SeO x 2−促进 OER 的启发,NiSe 被证明是一种有效的阳极,能够将 α-硝基甲苯电氧化为 E-硝基乙烯,E 选择性高达 99%,法拉第效率为 89%,反应速率为 0.25毫摩尔厘米-2 小时-1通过抑制副反应实现节能制氢。高性能可能与其原位形成的 NiOOH 表面层和在电氧化过程中通过硒浸出氧化吸收 SeO x 2-以及两个 -NO 2中间体基团在 NiOOH 上的优先吸附有关。提出了α-碳自由基的自偶联和随后消除亚硝酸盐分子途径。广泛的底物范围,E-硝基乙烯的放大合成,以及 E-硝基乙烯和氢或 N-保护的氨基芳烃在双功能 NiSe 电极上的配对生产突出了很有前景的潜力。金也显示出类似的促进 α-硝基甲苯转化的作用,如