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| Section2 = | Section3 = | Section4 = }} Lithium borohydride (LiBH4) is a tetrahydroborate and known in organic synthesis as a reducing agent for esters. Although less common than the related sodium borohydride, the lithium salt offers some advantages, being a stronger reducing agent and highly soluble in ethers, whilst remaining safer to handle than lithium aluminium hydride. ==Preparation== Lithium borohydride may be prepared by the metathesis reaction, which occurs upon ball-milling the more commonly available sodium borohydride, and lithium bromide:〔Peter Rittmeyer, Ulrich Wietelmann “Hydrides” in Ullmann's Encyclopedia of Industrial Chemistry, 2002, Wiley-VCH, Weinheim. 〕 : NaBH4 + LiBr → NaBr + LiBH4 Alternatively the chemical may be synthesized from Boron trifluoride and lithium hydride in diethyl ether: :BF3 + 4 LiH → LiBH4 + 3 LiF 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Lithium borohydride」の詳細全文を読む スポンサード リンク
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