Question
Give examples of alkoxysubstituted LAH reducing agents. Compare their selectivity with LAH.
Answer :
Word Count : 227
Alkoxysubstituted lithium aluminium hydrides (LAH derivatives) are modified reducing agents in which one or more hydride ions of LAH are replaced by alkoxy groups. Common examples include lithium tri-tert-butoxyaluminium hydride (LiAlH(OtBu)₃), lithium di-tert-butoxyaluminium hydride (LiAlH₂(OtBu)₂), lithium triethoxyaluminium hydride (LiAlH(OEt)₃), and lithium triisopropoxyaluminium hydride (LiAlH(OiPr)₃). These derivatives are often referred to as "sterically hindered" or "selective" reducing ____ __________ _______ ___ _______ ____ ________ ______ ______.
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Alkoxysubstituted lithium aluminium hydrides (LAH derivatives) are modified reducing agents in which one or more hydride ions of LAH are replaced by alkoxy groups. Common examples include lithium tri-tert-butoxyaluminium hydride (LiAlH(OtBu)₃), lithium di-tert-butoxyaluminium hydride (LiAlH₂(OtBu)₂), lithium triethoxyaluminium hydride (LiAlH(OEt)₃), and lithium triisopropoxyaluminium hydride (LiAlH(OiPr)₃). These derivatives are often referred to as "sterically hindered" or "selective" reducing ____ __________ _______ ___ _______ ____ ________ ______ ______.
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