77255-27-7Relevant academic research and scientific papers
HETEROCYCLES IX. ASYMMETRIC EPOXIDATION OF A QUINONE AND SYNTHESES OF CHIRAL LACTONES
Harigaya, Yoshihiro,Yamaguchi, Hiroko,Onda, Masayuki
, p. 183 - 185 (2007/10/02)
The epoxy diketone (2) is obtained in optically active form by the phase-transfer chiral epoxidation of the quinone (1).The transformation of 2 to the lactones (5) and (6) is carried out without the loss of optical activity.
HETEROCYCLES. XI. SYNTHESES OF ANALOGS OF 10b-HYDROXYCHELIDONINE AND 4b-EPICHELIDONINE
Harigaya, Yoshihiro,Yotsumoto, Koko,Takamatsu, Seiko,Yamaguchi, Hiroko,Onda, Masayuki
, p. 2557 - 2564 (2007/10/02)
The naphthoquinonine epoxide (4), derived from the naphthoquinonine (1), is reduced with sodium borohydride under mild conditions to yield the cis-epoxy ketol (5) exclusively.The configuration of the 4-hydroxyl group in 5 is deduced on the basis of the in
