3-aryl-6-methoxy-2-oxo-1,2-dihydroquinoline-4-carbonitriles as Solvent and pH Independent Green Fluorescent Dyes
作者:Guy Crépin Enoua、Georg Uray、Wolfgang Stadlbauer
DOI:10.1002/jhet.1084
日期:2012.11
Highly fluorescent and stable 3‐aryl‐6‐methoxy‐2‐oxoquinoline‐4‐carbonitriles 6 (λexc = 408 nm and λem = 510 nm) were synthesized starting from appropriate arylmalonates 2. Ring closure reaction with p‐anisidine gave 4‐hydroxyquinolones 3, which could be bis‐chlorinated to yield quinolines 4. Regioselective hydrolysis produced reactive 4‐chloroquinolones 5, which were converted to green fluorescent 4‐cyano
高度荧光和稳定3-芳基-6-甲氧基-2-氧代喹啉-4-甲腈6(λ EXC = 408 nm和λ EM = 510 nm)的合成从合适的起始arylmalonates 2。与对茴香胺的闭环反应得到4-羟基喹诺酮3,可将其双氯化以生成喹啉4。区域选择性水解产生的活性4- chloroquinolones 5,将其转化为绿色荧光4-氰基喹诺酮6用toluenesulfinates作为催化剂。