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Reaction of Diisobutylaluminum Borohydride, a Binary Hydride, with Selected Organic Compounds Containing Representative Functional Groups
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2021-04-12 , DOI: 10.1021/acs.joc.0c03062 Gabriella Amberchan 1 , Rachel A Snelling 1 , Enrique Moya 1 , Madison Landi 1 , Kyle Lutz 1 , Roxanne Gatihi 1 , Bakthan Singaram 1
The Journal of Organic Chemistry ( IF 3.3 ) Pub Date : 2021-04-12 , DOI: 10.1021/acs.joc.0c03062 Gabriella Amberchan 1 , Rachel A Snelling 1 , Enrique Moya 1 , Madison Landi 1 , Kyle Lutz 1 , Roxanne Gatihi 1 , Bakthan Singaram 1
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The binary hydride, diisobutylaluminum borohydride [(iBu)2AlBH4], synthesized from diisobutylaluminum hydride (DIBAL) and borane dimethyl sulfide (BMS) has shown great potential in reducing a variety of organic functional groups. This unique binary hydride, (iBu)2AlBH4, is readily synthesized, versatile, and simple to use. Aldehydes, ketones, esters, and epoxides are reduced very fast to the corresponding alcohols in essentially quantitative yields. This binary hydride can reduce tertiary amides rapidly to the corresponding amines at 25 °C in an efficient manner. Furthermore, nitriles are converted into the corresponding amines in essentially quantitative yields. These reactions occur under ambient conditions and are completed in an hour or less. The reduction products are isolated through a simple acid–base extraction and without the use of column chromatography. Further investigation showed that (iBu)2AlBH4 has the potential to be a selective hydride donor as shown through a series of competitive reactions. Similarities and differences between (iBu)2AlBH4, DIBAL, and BMS are discussed.
中文翻译：
二氢化硼二异丁基铝氢化物与含有代表性官能团的某些有机化合物的反应
由氢化二异丁基铝（DIBAL）和硼烷二甲基硫醚（BMS）合成的二元氢化物二异丁基硼氢化铝[（i Bu）2 AlBH 4 ]在还原各种有机官能团方面显示出巨大潜力。这种独特的二元氢化物（i Bu）2 AlBH 4易于合成，通用且易于使用。醛，酮，酯和环氧化物以基本定量的收率非常快地还原为相应的醇。该二元氢化物可以在25°C下以有效方式将叔酰胺迅速还原为相应的胺。此外，腈以基本上定量的产率转化为相应的胺。这些反应在环境条件下发生，并在一个小时或更短的时间内完成。还原产物可通过简单的酸碱萃取而分离，无需使用柱色谱法。进一步的研究表明（i Bu）2 AlBH 4如一系列竞争反应所示，它具有成为选择性氢化物供体的潜力。讨论了（i Bu）2 AlBH 4，DIBAL和BMS之间的异同。
更新日期：2021-05-07
中文翻译：
二氢化硼二异丁基铝氢化物与含有代表性官能团的某些有机化合物的反应
由氢化二异丁基铝（DIBAL）和硼烷二甲基硫醚（BMS）合成的二元氢化物二异丁基硼氢化铝[（i Bu）2 AlBH 4 ]在还原各种有机官能团方面显示出巨大潜力。这种独特的二元氢化物（i Bu）2 AlBH 4易于合成，通用且易于使用。醛，酮，酯和环氧化物以基本定量的收率非常快地还原为相应的醇。该二元氢化物可以在25°C下以有效方式将叔酰胺迅速还原为相应的胺。此外，腈以基本上定量的产率转化为相应的胺。这些反应在环境条件下发生，并在一个小时或更短的时间内完成。还原产物可通过简单的酸碱萃取而分离，无需使用柱色谱法。进一步的研究表明（i Bu）2 AlBH 4如一系列竞争反应所示，它具有成为选择性氢化物供体的潜力。讨论了（i Bu）2 AlBH 4，DIBAL和BMS之间的异同。
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