性質(zhì) Properties
本品的化學活性很高。閃點是-17℃。在常溫下，它能迅速和水、鹽酸、甲磺酸以及甲醇等反應(yīng)，放出氫氣。它可溶于四氫呋喃等醚類溶劑。它的四氫呋喃溶液在氮氣中非常穩(wěn)定，但若放置于空氣或濕氣中，并迅速分解。本品是一種極強的親核還原劑，其還原能力比其母體硼氫化鋰強得多，在許多反應(yīng)中也優(yōu)于氫化鋁鋰。
This product has very high chemical activity. Flash point:-17℃. At room temperature, it can rapidly react with **, hydrochloric acid, methanesulfonic acid and methanol to release hydrogen. It can be dissolved in THF and other ether solvents. Its THF solution is very stable under nitrogen, but will be decomposed very quickly in air or moisture. This product is an extremely strong nucleophilic reducer, and its reducing power is much stronger than its parent company, LiBH4. In many reactions, it is also better than LiAlH4.
用途 Usage
在有機合成中用作還原劑，它能還原醛酮、羥酸、羥酸衍生物、伯酰胺、叔酰胺、脂肪族硝基化合物、酯、內(nèi)酯、含硫化合物、磺酸、鹵代芳烴、環(huán)氧化物等，也可以在區(qū)域或是立體選擇還原劑中也顯示出優(yōu)良的特性，被譽為“超氫化物”。
Used as reducing agent in organic synthesis, it can reduce aldehyde ketone, carboxylic acids, carboxylic acid derivatives, primary amides, tertiary amides, aliphatic nitro compounds, esters, lactones, sulphur compounds, sulfonic acid, halogenated aromatics and epoxide, etc., It shows good regional selectivity or stereoselectivity as a reductant, which is called ”super hydride”.
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