n-Butyl lithium
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109-72-8[CH2-]CCC.[Li+]DLEDOFVPSDKWEF-UHFFFAOYSA-NButyllithium is an alkyllithium compound.
109-72-8CHEBI:51469安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
CSL00127
Perfluorethyllithium + Phosphorus Trichloride,Phosphorus + N-BUTYLLITHIUM + CHLOROPENTAFLUOROETHANE
Avoid temperatures below -90 C
Substitution
Several times in our laboratory, we have experienced a violent decomposition of the ethereal C2F5Cl/n-BuLi solution after the addition of just a few drops of (R)nPCl3=n. In each of these cases, the metal-halogen exchange temperature was maintained below -90 C. We believe that this problem is due to a buildup of starting reagents at low temperatures.
C&EN
用途有機合成試薬。
用途共役ジエンのアニオン重合開始剤、飽和および不飽和カルボニル化合物のアルキル化反応などに用いられる。
使用n-Butyllithium is used as a polymerization initiator in the production of elastomers like polybutadiene and styrene- butadiene- styrene. As a strong base, it is utilized in the synthesis of organic compounds. It undergoes thermal decomposition to prepare 1-butene.
製造方法Industrially, n-butyllithium is produced by the reaction of n-butyl chloride with lithium metal dispersion in various hydrocarbon solvents. Hexane is the most commonly used solvent. Up to one-half of the lithium is replaced with sodium in order to lower the cost of the butyllithium and increase the reactivity of the dispersion. The reaction is carried out below the boiling point of the solvent.The laboratory procedure is essentially the same except that pentane and diethyl ether are two of the more popular solvents. The preparation runs smoothly in ether at lower temperatures but the product must either be used immediately or kept refrigerated due to the rapid cleavage of ether by n-butyllithium.
読み込み中…
化学的特性n-Butyllithium is a colorless crystalline solid or clear yellow solution. Due to its high reactivity and extreme solubility, even in its impurities, it is commonly thought to be a viscous liquid.