Synthesis of polyphosphodiesters by ring-opening polymerization of cyclic phosphates bearing allyl phosphoester protecting groups
作者:Benoït Clément、Daniel G. Molin、Christine Jérôme、Philippe Lecomte
DOI:10.1002/pola.27732
日期:2015.11.15
The allyl phosphoester group is shown to be a protecting group for the synthesis of anionic polyphosphodiesters. Our strategy relies on the synthesis of a cyclic phosphate monomer bearing a pendant allyl phosphoester group, its easy purification by fractional distillation, its organocatalyzed ring‐opening polymerization by 1,8‐diazobicyclo[5.4.0]undec‐7‐ene (DBU) and 1‐[3,5‐bis(trifluoromethyl)phe
显示烯丙基磷酸酯基团是用于合成阴离子聚磷酸二酯的保护基。我们的策略依赖于合成具有磷酸烯丙基酯侧基的环状磷酸酯单体,易于通过分馏纯化,通过1,8-重氮双环[5.4.0]十一碳-7-烯(DBU)进行有机催化的开环聚合反应和1- [3,5-双(三氟甲基)苯基] -3-环己基硫脲(TU)。最后,在没有任何可检测到的降解的情况下,通过与苯硫代硫酸钠反应进行烯丙基磷酸酯基团的脱保护。©2015 Wiley Periodicals,Inc. J. Polym。科学,A部分:Polym。化学 2015年,53,2642年至2648年