Ha Hyun-Joon, Lee Sung-Koo, Ha Young-Jin, Park Jun-Weon, Synth. Commun, 24 (1994) N 18, S 2557-2562
作者:Ha Hyun-Joon, Lee Sung-Koo, Ha Young-Jin, Park Jun-Weon
DOI:——
日期:——
Appleton, Diana; Duguid, A. Bruce; Lee, Sung-Koo, Journal of the Chemical Society. Perkin transactions I, 1998, # 1, p. 89 - 102
作者:Appleton, Diana、Duguid, A. Bruce、Lee, Sung-Koo、Ha, Young-Jin、Ha, Hyun-Joon、Leeper, Finian J.
DOI:——
日期:——
Selective Bromination of Ketones. A Convenient Synthesis of 5-Aminolevulinic Acid
作者:Hyun-Joon Ha、Sung-Koo Lee、Young-Jin Ha、Jun-Weon Park
DOI:10.1080/00397919408010567
日期:1994.10
Abstract Bromination of unsymmetrical ketones with Br2 in methanol proceeded regioselectively in good yield at the less substituted methyl carbon. The bromination of levulinic acid using this method was followed by azidation and amination to lead to an efficient three-step synthesis of 5-aminolevulinic acid in 36% overall yield.