Abstract

Title amino acids I (R, R1, R2 = H, OMe) were prepd. from 2-arylethylamines II by a reaction sequence consisting of N-pivaloylation, lithiation at the benzylic position with tert-BuLi, carboxylation, and deprotection by refluxing in 20% hydrochloric acid. [on SciFinder (R)]

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