摘要
This paper described a novel method t hat is in alkaline protonic solvent (water or ethanol)to prepare sodium diselenide with a 8:1molar ratio of selenium to sodium borohydride,then to syn-thesize organic diselenides.Compared with the reaction in neutral solu tion described in literature,this method has advantages as below.(1)To prepare same amount of diselenide,the amount of NaBH4in alkaline solution is only 1/8of th at in neutral solution.(2)The reaction proceeded mildly with no injurious gas forming.(3)The operation is convenient and safe.(4)The obtained Na 2Se2solution can be utilized directly to synthesize diselenides with higher yields.
This paper described a novel method that is in alkaline protonic solvent (water or ethanol) to prepare sodium diselenide with a 8: 1 molar ratio of selenium to sodium borohydride, then to synthesize organic diselenides. Compared with the reaction in neutral solution described in literature, this method has advantages as below. (1) To prepare same amount of diselenide, the amount of NaBH4 in alkaline solution is only 1/8 of that in neutral solution. (2) The reaction proceeded mildly with no injurious gas forming. (3) The operation is convenient and safe. (4) The obtained Na2Se2 solution can be utilized directly to synthesize diselenides with higher yields.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2001年第6期905-907,共3页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目(No.29271016)