Various diacyl selenides, diacyl diselenides and selenocarboxylates were synthesized by reaction of several acyl chlorides with LiAlHSeH. Reaction of diacyl chloride with LiAlHSeH afforded cyclic selenoanhydrides. In the 77Se NMR spectra, we found that the chemical shifts of the diacyl selenides and the diacyl diselenides could facilitate their distinction.
Synthesis of Sodium Diselenides and its Reaction with Benzoyl Chloride Under Phase Transfer Catalysis and Microwave Irradiation Conditions
作者:Jin-Xian Wang、Lin Bai、Zhanxiang Liu
DOI:10.1080/00397910008087111
日期:2000.3
diselenides involves the reaction of selenium with sodium hydroxide under phase transfer catalysis and microwaveirradiation conditions to give sodium diselenides, which reacts with benzoyl chloride at 0-3 °C and conventional conditions to afford the dibenzoyl diselenides. The effect of microwaveirradiation power, reaction time, solvent and operational method on the reaction is investigated.
摘要 一种简单、快速、高效的合成二苯甲酰二硒化物的方法包括在相转移催化和微波辐射条件下硒与氢氧化钠反应得到二硒化钠,二硒化钠在 0-3 °C 和常规条件下与苯甲酰氯反应以生成二硒化钠。得到二苯甲酰二硒化物。研究了微波辐射功率、反应时间、溶剂和操作方法对反应的影响。
Diacyl selenides were synthesized in good yields by the deselenization of diacyl diselenides, which have conveniently been prepared from acyl chlorides and sodium hydroselenide. The reaction of dibenzoyl selenide with piperidine at 0 °C formed a fairly stable piperidinium salt. The methanolysis of distearoyl selenide gave selenostearic acid as an unstable intermediate.
通过对二酰基二硒化物进行脱硒合成了二酰基硒化物,而二酰基二硒化物是从酰基氯和氢硒化钠中方便地制备出来的。二苯甲酰基硒化物与哌啶在 0 °C 下反应生成了相当稳定的哌啶盐。二硬脂酰硒化物的甲醇分解产生的硒硬脂酸是一种不稳定的中间体。
Organoselenosilane-Mediated Selective Mild Access to Selenolesters, Selenoanhydrides and Diacyl Diselenides
Reaction of acylchlorides with phenylselenotrimethylsilane promoted by TBAF afforded a mildgeneral access to selenolesters in good yields. When acylchlorides were reacted with bis(trimethylsilyl)selenide (HMDSS) in 2:1 or 1:1 ratio a selective entry to selenoanhydrides or diacyl diselenides respectively was obtained.