An oral care composition comprising a compound, wherein the compound comprises: (a) a cation; and (b) an anion, wherein the compound has two or more of (i) an atomic polarizability of from 20 to 60, (ii) a Kier flexibility index of from 2 to 20 and (iii) a molar refractivity of from 3 to 10 is provided.
Convenient and Efficient Method for the Synthesis of Phthalocyanines and Metallophthalocyanines in Task-Specific 2-Hydroxyethyl Ionic Liquids
作者:Kumar Karitkey Yadav、Poonam、Shive M. S. Chauhan
DOI:10.1080/00397911.2013.867505
日期:2014.10.2
ammonium ionicliquids at 100 °C gave corresponding phthalocyanines in moderate yield. Further the reaction of substituted phthalonitriles in the presence of transition-metal salts in ionicliquids gave the corresponding metallophthalocyanines. The 2-hydroxylethyl ammonium ionicliquids gave better yields of phthalocyanines than 2-hydroxylethyl imidazolium and nonhydroxyl functionalized ionicliquids. The
摘要 在任务特定的 2-羟乙基基咪唑鎓和铵离子液体中,取代的邻苯二甲腈在 100 °C 下四聚化,以中等产率得到相应的酞菁。此外,在过渡金属盐的存在下,取代的邻苯二甲腈在离子液体中的反应得到相应的金属酞菁。2-羟乙基铵离子液体比2-羟乙基咪唑鎓和非羟基官能化离子液体产生更好的酞菁收率。不同酞菁的分离和分离采用硅胶柱色谱法完成,产物采用多种光谱技术进行表征。图形概要