129155-34-6Relevant articles and documents
The iodine-mediated highly regioselective synthesis of angular and linear naphthofuroquinones
Liu, Suyou,Long, Lijun,Xie, Duoduo,Liu, Lijun,Ma, Dayou
, p. 6730 - 6733 (2015)
Naphthofuroquinones are of great value in medicinal chemistry. In this letter, a facile method for highly regioselective synthesis of both linear and angular naphthofuroquinones has been developed via iodine mediated cyclization of 2-hydroxy-3-substituted
A New Route to Naphthofuran-4,9-diones from Thio-substituted 1,4-Naphthoquinones
Kang, Wen-Bing,Sekiya, Takashi,Toru, Takeshi,Ueno, Yoshio
, p. 441 - 445 (2007/10/02)
Reaction of 2-phenylthio- or 2-ethylthio-1,4-naphthoquinones (1) and (2) with lithium enolates or pyridinium ylides was found to give alkylated 1,4-naphthoquionones (3)-(6) in high yields.Alkylated 1,4-naphthoquinones (5) and (6) were then effectively cyclized to 2-substituted naphthofuran-4,9-diones (8) by action of bromine in acetic acid.