New applications of the protecting group di-(4-methoxyphenyl)methyl: N-protection of urethanes and uridines, and efficient removal by either ceric ammonium nitrate/silica or 2,3-dichloro-5,6-dicyanoquinone
作者:Khaled AbuSbeih、Christine Bleasdale、Bernard T Golding、Sean L Kitson
DOI:10.1016/s0040-4039(00)61291-1
日期:1992.8
The protecting group di-(4-methoxyphenyl)methyl, removable by ceric ammonium nitrate on silica or 2,3-dichloro-5,6-dicyanoquinone, is shown to facilitate syntheses of urethanes (eg vinyl urethane, 1a) and uridine derivatives (eg 2-O-allyluridine, 8).
可以通过二氧化硅上的硝酸铈铵或2,3-二氯-5,6-二氰基醌除去的保护基二-(4-甲氧基苯基)甲基有助于合成氨基甲酸酯(例如乙烯基氨基甲酸酯,1a)和尿苷衍生物(例如2-O-烯丙啶,8)。