α-Substituted α-diazoesters (I), readily prepared from α-amino acid esters, were reduced with various reductants to give corresponding α-hydrazinocarboxylic acids (II) and their derivatives. Several investigations were also undertaken in order to synthesize α, α-disubstituted α-hydrazinocarboxylic acid derivatives (VII) from I.
α-取代的α-重氮酯(I)可通过
α-氨基酸酯制备,并用各种还原剂还原得到相应的α-
肼基
羧酸(II)及其衍
生物。此外,还进行了多项研究,以从I合成α, α-二取代的α-
肼基
羧酸衍
生物(VII)。