Lithium Ammonia Birch reduction is it more d than l?

AuTiSTiC

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id rather use sodium its less expensive and D or L all depends on the chemical reduced and the mechanism, it takes a little of problem solving our teacher used to gave use these question but a few where able to answer, aint easy and sometimes cant be told id not by experiments
 

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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