Synthesis of 6-Alkylpurine Derivatives by Nickel-complex-catalyzed Coupling Reaction of 6-(Methylthio)purine Derivatives with Grignard Reagents
作者:Hideyuki Sugimura、Hisashi Takei
DOI:10.1246/bcsj.58.664
日期:1985.2
CH3(CH2)nCH2 (n=2 to 6), C6H5CH2CH2, (CH3)2 C=CHCH2CH2) in the presence of 5 mol% [NiCl2(Ph2PCH2CH2CH2PPh2)] in refluxing THF for 8 h to afford 6-aryl or 6-alkylpurines in 62–74% yields. By applying this reaction to 6-(methylthio)purine nucleoside, 6-(4-methyl-3-pentenyl)-9-β-D-ribofuranosylpurine was synthesized.
6-(甲硫基)嘌呤与 RMgX (R=C6H5, CH3(CH2)nCH2 (n=2 to 6), C6H5CH2CH2, (CH3)2 C=CHCH2CH2) 在 5 mol% [NiCl2(Ph2PCH2CH2CH2PPh2)] 存在下反应将 THF 回流 8 小时,以 62-74% 的产率得到 6-芳基或 6-烷基嘌呤。通过将该反应应用于 6-(甲硫基)嘌呤核苷,合成了 6-(4-甲基-3-戊烯基)-9-β-D-呋喃核糖基嘌呤。