Deprotection of durable benzenesulfonyl protection for phenols — efficient synthesis of polyphenols
作者:Mohammad Shariful Alam、Sangho Koo
DOI:10.1080/00397911.2017.1393088
日期:2018.2.1
demonstrated by the use of durable benzenesulfonyl group, which survives various harsh reaction conditions using Grignard reagent, organolithium reagent, metal alkoxide, phosgene, mineral, and Lewis acids. A facile deprotection condition utilizing pulverized KOH (5 equiv) and t-BuOH (10 equiv) in hot toluene makes this protocol as a practical method, which can be applied to the multistep synthesis of biologically
摘要 通过使用耐用的苯磺酰基,证明了一种对苯酚的稳健保护方法,使用格氏试剂、有机锂试剂、金属醇盐、光气、矿物和路易斯酸,苯磺酰基可以承受各种恶劣的反应条件。在热甲苯中利用粉状 KOH (5 当量) 和 t-BuOH (10 当量) 的简便脱保护条件使该协议成为一种实用方法, 可应用于生物和医学上重要的多酚化合物的多步合成。图形概要