Enantioselective synthesis of α-branched
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Studer, Armido ;Seebach, Dieter
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Article
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1995
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John Wiley and Sons
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English
⚖ 712 KB
## Abstract Enantiopure 5,5‐disubstituted __t__‐butyl 2‐__t__‐butyl‐3‐methyl‐4‐oxoimidazolidine‐1‐carboxylates readily available by diastereoselective double alkylation of the parent compound (Boc‐BMI) can be converted to α‐branched α‐amino acids with two bulky substituents (PhCH~2~/Et, PhCH~2~/__i