What is LiAlD4?
Alternate Names: Tetrahydro-d4-Aluminate(1-) Lithium; Aluminum Lithium Hydride (LiAlD4); Aluminum Lithium Hydride (AlLiD4) Application: Lithium Aluminum Deuteride is used in various analytical organic chemistry studies. CAS Number: 14128-54-2. Molecular Weight: 41.98. Molecular Formula: AlD4Li.
What does LiAl OtBu 3H do?
It can reduce acid chlorides (and some esters) quickly, but is slow to react with aldehydes; therefore LiAl(OtBu)3H provides a convenient way to synthesize aldehydes by reduction of acid chlorides, something that can’t be done with LiAlH4 or NaBH4. NaBH4 is less reactive than LiAlH4 but is otherwise similar.
How is LiAlH4 prepared?
Preparation: Lithium Aluminium Hydride is obtained by Reacting Lithium Hydride and Aluminium Chloride in presence of Dry Ether . By this reaction 97% of LiAlH4 is obtained.
How do you make lithium borohydride?
Preparation. Lithium borohydride may be prepared by the metathesis reaction which occurs upon ball-milling the more commonly available sodium borohydride and lithium bromide: NaBH4 + LiBr → NaBr + LiBH.
What is LiAl or 3h?
There are quite a few of those, with LiAl(OtBu)3H (Lithium tri(t-butoxy) aluminum hydride) being the most commonly seen in undergraduate courses: Lithium tri(t-butoxy) aluminum hydride LiAl(OtBu)3H is a derivative of LiAlH4 where three of the four hydrogens are replace with tBuO groups.
What can LiAlH OtBu 3 reduce?
It will reduce acid chlorides to aldehydes, and stop there. This is a big deal, because aldehydes are very reactive species themselves, easily reduced to alcohols.
How do you make lithium hydride?
LiH is produced by treating lithium metal with hydrogen gas: 2 Li + H2 → 2 LiH. This reaction is especially rapid at temperatures above 600 °C.