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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Alpine borane ： ウィキペディア英語版 Alpine borane |Section2= |Section7= |Section8= }} Alpine borane is the commercial name for an organoboron compound that is used in organic synthesis. This reagent is generated by treating 9-BBN with α-pinene to give a sterically crowded trialkylborane. The resulting chiral species can stereoselectively reduce ketones, aldehydes, even deutero aldehydes in what is known as the Midland Alpine Borane Reduction, or simply the Midland Reduction:〔M. Mark Midland "B-3-Pinanyl-9-borabicyclo()nonane" in Encyclopedia of Reagents for Organic Synthesis 2001 John Wiley, New York.. Article Online Posting Date: April 15, 2001〕 :C8H12B-pinanyl + RCDO → C8H12BOCHDR + (+)-''d''-pinene Hydrolysis of the resulting borinic ester affords the alcohol: :C8H12BOCHDR + H2O → C8H12BOH + HOCHDR It is also effective for the stereoselective reduction of certain acetylenic ketones. ==Related reagents== A range of alkyl-substituted derivatives of borane and diborane are specialty reagents in organic synthesis. Two such reagents that are closely related to Alpine borane are 9-BBN and diisopinocampheylborane. 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「Alpine borane」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.