EFFICIENT REDUCTION OF ORGANIC COMPOUNDS WITH SULFURATED CALCIUM BOROHYDRIDE [Ca(S<sub>3</sub>BH<sub>2</sub>)<sub>2</sub>], A NEW AND STABLE MODIFIED BOROHYDRIDE REAGENT
作者:Habib Firouzabadi、Bahman Tamami、Ali Reza Kiasat
DOI:10.1080/10426500008043654
日期:2000.4.1
Calcium, magnesium, and berelium borohydrides are prepared by metathetical reaction between NaBH2S3 and Ca, Mg, and Be chlorides in dry THF and the effect of metal cation exchange on their stability and reactivity has been presented. In this study we have shown that Ca(BH2S3)2 is much more stable and more reactive than its Mg, Be, and Na analogues. Ca(BH2S3)2 can easily reduce carbonyl compounds such as
摘要 通过NaBH2S3 与Ca、Mg 和Be 氯化物在干燥THF 中的复分解反应制备了硫化钙、镁和硼氢化铍,并介绍了金属阳离子交换对其稳定性和反应性的影响。在这项研究中,我们已经表明 Ca(BH2S3)2 比其 Mg、Be 和 Na 类似物更稳定且更具反应性。Ca(BH2S3)2 可以很容易地将羰基化合物,如醛、酮、丙烯、α-二酮、α-β-不饱和羰基化合物、芳酰基叠氮化物和羧酸氯化物还原成相应的醇,产率很高。环氧化物也受该试剂影响并以良好的产率产生它们的对称二羟基二硫化物。