Редукция на литий амоняк бреза повече ли е г, отколкото л?

AuTiSTiC

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id предпочитам да използвам натрий, който е по-евтин и D или L всичко зависи от намаленото химично вещество и механизма, това отнема малко решаване на проблеми нашият учител използваше тези въпроси, но малко от тях можеха да отговорят, не е лесно и понякога не може да се каже id не чрез експерименти
 

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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