Litium Ammoniak Björkreduktion är det mer d än l?

AuTiSTiC

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id hellre använda natrium dess billigare och D eller L allt beror på den kemiska reducerade och mekanismen, det tar lite av problemlösning vår lärare brukade gav använda dessa frågor men några där kunna svara, aint lätt och ibland kan inte sägas id inte genom experiment
 

Osmosis Vanderwaal

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It's true, the birch reduction isn't just for drugs, it is used an many synths, but you'd be remiss to use Na because the product of the birch reaction is 11% with sodium and 75% with lithium . Lithium is free from old batteries and sodium metal is expensive. The birch has 2 simultaneous reactions going on . If you use ephedrine/pseudoephedrine or any chiral precursor, you will get 95%+ the isomer with the chirality of the precursors. If your precursor is racemic, your product isnracemic
 
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