Synthesis, Table of Contents Synthesis 2021; 53(19): 3573-3577DOI: 10.1055/a-1526-7657 psp Convenient Synthesis of (R)-3-[(tert-Butoxycarbonyl)amino]piperidine and (R)-3-[(tert-Butoxycarbonyl)amino]azepane Authors Author Affiliations Renat Kadyrov ∗ a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 25068 Řež, Czech Republic b Evonik Resource Efficiency GmbH, Rodenbacher Chaussee 4, 63457 Hanau, Germany Oleg L. Tok a Institute of Inorganic Chemistry, Academy of Sciences of the Czech Republic, 25068 Řež, Czech Republic Recommend Article Abstract Buy Article(opens in new window) All articles of this category(opens in new window) Abstract (R)-3-[(tert-Butoxycarbonyl)amino]piperidine and (R)-3-[(tert-butoxycarbonyl)amino]azepane were prepared in two steps starting from d-ornithine and d-lysine, respectively. In the key step, N-Boc-protected 3-aminolactams were converted into imido esters by O-alkylation and then hydrogenated to amines, under mild conditions (5 bar H2, room temperature) and without isolation, over a standard hydrogenation catalyst (5% Pt/C). Key words Key wordsamides - amines - hydrogenation - heterogeneous catalysis - chirality Full Text References References For recent reviews, see: 1a Abdeldayem A, Raouf YS, Constantinescu SN, Moriggl R, Gunning PT. Chem. Soc. Rev. 2020; 49: 2617 1b Zha G.-F, Rakesh KR, Manukumar HM, Shantharam CS, Long S. Eur. J. Med. Chem. 2019; 162: 465 1c Tomović K, Kocić G, Šmelcerović A. Acta Med. Medianae 2019; 58: 50 1d Tomovic K, Lazarevic J, Kocic G, Deljanin-Ilic M, Anderluh A, Smelcerovic A. Med. Res. Rev. 2019; 39: 404 1e Patel HM, Pawara R, Surana SJ. Third Generation EGFR Inhibitors: Overcoming EGFR Resistance and Toxicity Problems. Elsevier; Amsterdam: 2019: 45-128 1f Li N, Wang L.-J, Jiang B, Li X, Guo C, Guo S, Shi D.-Y. Eur. J. Med. 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