描述了新型亚硒酸盐与磺酸盐的制备和表征。它们可以通过简单地将磺酸添加到亚硒酸盐溶液中并除去溶剂来容易地制备。在大多数情况下,它们是无色的晶体固体,比母体亚硒酸盐稳定得多,可以进行全面表征和X射线晶体学分析。它们还可以有效地将硫化物氧化为亚砜,而不会发生过氧化,并且可以干净地再生硒化物。它们的结构已通过1 H NMR光谱和X射线晶体学证实。
Sodium Selenosulfate from Sodium Sulfite and Selenium Powder: An Odorless Selenylating Reagent for Alkyl Halides to Produce Dialkyl Diselenide Catalysts
using aqueous EtOH as the solvent and avoiding the generation of a malodourous selenol intermediate, the selenylation reaction with Na2SeSO3 is much more environmentally friendly than conventional methods. Owing to the cheap and abundant starting materials and selenium reagents, our novel synthetic method reduces the production costs of dialkyl diselenides as organoselenium catalysts, thereby advancing
Na2SeSO3 可以通过 Na2SO3 与 Se 能量的反应原位生成,被发现是一种无味试剂,用于烷基卤化物的硒基化生成二烷基二硒化物。这些产品最近已被证明是羰基化合物的 Baeyer-Villiger 氧化、烯烃的选择性氧化或肟的氧化脱肟的良好催化剂。通过使用乙醇水溶液作为溶剂并避免产生恶臭的硒醇中间体,与传统方法相比,与 Na2SeSO3 的硒基化反应更加环保。由于起始原料和硒试剂廉价且丰富,我们的新合成方法降低了作为有机硒催化剂的二烷基二硒化物的生产成本,
Selenoxide-sulfonic acid adducts; A new class of stable, selenoxide-based oxidants
作者:D.John Procter、Christopher M. Rayner
DOI:10.1016/s0040-4039(00)76243-5
日期:1994.2
The preparation and characterisation of a novel class of adducts of selenoxides with sulfonic acids are described. They are considerably more stable and show superior reactivity to the parent selenoxides. Their structure has been confirmed by 1H NMR spectroscopy and X-ray crystallography.
描述了新型亚硒酸盐与磺酸的加合物的制备和表征。它们非常稳定,并且对母体亚硒酸盐显示出优异的反应性。它们的结构已通过1 H NMR光谱和X射线晶体学证实。
A NEW ROUTE TO DIALKYL SELENIDE FROM OLEFIN VIA HYDROBORATION
作者:Akira Arase、Yuzuru Masuda
DOI:10.1246/cl.1975.419
日期:1975.5.5
The reaction of trialkylboranes, prepared from olefin via hydroboration, with selenium dioxide was studied. In the aqueous selenium dioxide solution, trialkylboranes give the mixtures of dialkyl selenide and dialkyl diselenide, whereas in the suspension of selenium dioxide in tetrahydrofuran, trialkylboranes give dialkyl selenides selectively under the condition where the reaction time and the amount
acid with elemental selenium was discovered and employed for the preparation efficient organoselenium catalysts for Baeyer–Villiger reaction and oxidative deoximation reaction. Compared with the traditionally used Grignard reagent method, the decarboxylative coupling reaction with selenium powders provides a shortcut for the preparation of organoselenium catalysts free of carcinogenic organohalide starting
An Efficient Method for Selective Syntheses of Sodium Selenide and Dialkyl Selenides
作者:Na Hye Shin、Yoo Jin Lim、Chorong Kim、Ye Eun Kim、Yu Ra Jeong、Hyunsung Cho、Myung-Sook Park、Sang Hyup Lee
DOI:10.3390/molecules27165224
日期:——
dialkyl selenide compounds 1 were presented. Overcoming the complexity and difficulty of selenides (R-Se-R) and/or multiselenides (R-Sen-R; n ≥ 2), we aimed to optimize the reaction condition for the tolerable preparation of sodium selenide (Na2Se) by reducing Se with NaBH4, and then to achieve selective syntheses of dialkyl selenides 1 by subsequently treating the obtained sodium selenide with alkyl
介绍了二烷基硒化合物1的选择性合成研究。克服硒化物 (R-Se-R) 和/或多硒化物 (R-Se n -R; n ≥ 2) 的复杂性和难度,我们旨在优化制备硒化钠 (Na 2 Se)耐受性的反应条件通过用NaBH 4还原Se ,然后通过随后用烷基卤化物(RX)处理获得的硒化钠来实现二烷基硒化物1的选择性合成。因此,各种二烷基硒化物1以良好至中等的产率有效合成。还描述了对反应途径和溶剂研究的调查。