DIBAH = DIBAL

Reduction of Functional Groups. Diisobutylaluminum hydride has several acronyms DIBAH, DIBAL-H, and DIBAL. For the purpose of this article, DIBAL wUl be used. 

Synonyms Bis (isobutyl) hydroaluminum DIBAH DIBAL-H Diisobutyl hydroaluminum Hydrobis (2-methylpropyl) aluminum Hydrodiisobutylaluminum... 

DFT, Density functional theory DIBAH, Diisobutylaluminum hydride DIBAL-H = DIBAH (sometimes shown as DIBAL)... 

Diazonium. See Diazomethane Diazophenyl black BW. See Direct black 80 Diazopon SS-837. See Nonoxynol p-Diazotized aminodimethylaniline zinc chloride double salt. See p-Diazodimethylaniline zinc chloride double salt Diazotizing salts. See Sodium nitrite Diazyme L-200. See Amyloglucosidase DIBA DiBA. See Diisobutyl adipate DIBAC. See Diisobutylaluminum chloride DIBAH. See Diisobutylaluminum hydride DIBAL-E. See Diisobutylaluminum ethoxide DIBAL-H. See Diisobutylaluminum hydride DIBAL-O. See Bis (diisobutylaluminum) oxide DIBAL-BOT. See Diisobutylaluminum butylated oxytoluene... 

A second method of aldehyde synthesis is one that we ll mention here just briefly and then return to in Section 21.6. Certain carboxylic acid derivatives can be partially reduced to yield aldehydes. The partial reduction of an ester by diisobutylaluminum hydride (DIBAH, or DIBAL-H), for instance, is an important laboratory-scale method of aldehyde synthesis, and mechanistically related... 

The aldehyde intermediate can be isolated if 1 equivalent of diisobutyl-aluminum hydride (DIBAH, or DIBAL-H) is used as the reducing agent instead of UAIH4. The reaction has to be carried out at -78 °C to avoid further reduction to the alcohol. Such partial reductions of carboxylic acid derivatives to aldehydes also occur in numerous biological pathways, although the substrate is either a thioester or acyl phosphate rather than an ester. 

Reductions RCOOalkyl /-BUjAIH, DIBAH RCHO Sometimes written as DIBAL. 

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