1-甲基咪唑三氰基{[HMIM] C(CN)3 }作为纳米结构和可重复使用的熔融盐催化剂四氢的合成[ b ]吡喃通过串联的Knoevenagel -迈克尔环缩合和3,4-二氢吡喃并[ c ^ ]苯并吡喃衍生物
摘要:
通过二甲酮之间的反应,描述了一种快速,实验简单且快速的三氰基甲基1-甲基咪唑鎓{[HMIM] C(CN)3 }纳米熔融盐(NMS)催化串联Knoevenagel-Michael环缩合反应合成四氢苯并[ b ]吡喃的方法,室温下在无溶剂条件下的芳族醛和丙二腈。此外,在相同条件下,以{[HMIM] C(CN)3 } NMS为催化量,通过4-羟基香豆素,芳香醛和丙二腈的缩合反应合成了3,4-二氢吡喃并[ c ]色烯衍生物。
1-Methylimidazolium tricyanomethanide {[HMIM]C(CN)3} as a nano structure and reusable molten salt catalyst for the synthesis of tetrahydrobenzo[b]pyrans via tandem Knoevenagel-Michael cyclocondensation and 3,4-dihydropyrano[c]chromene derivatives
作者:Mohammad Ali Zolfigol、Neda Bahrami-Nejad、Fatemeh Afsharnadery、Saeed Baghery
DOI:10.1016/j.molliq.2016.06.069
日期:2016.9
An expeditious, experimentally simple and rapid 1-methylimidazolium tricyanomethanide [HMIM]C(CN)3} nano molten salt (NMS) catalyzed tandem Knoevenagel-Michael cyclocondensation procedure for the synthesis of tetrahydrobenzo[b]pyrans was described via reaction between dimedone, aromatic aldehyde and malononitrile under solvent-free conditions at room temperature. Furthermore, 3,4-dihydropyrano[c]chromene
通过二甲酮之间的反应,描述了一种快速,实验简单且快速的三氰基甲基1-甲基咪唑鎓[HMIM] C(CN)3 }纳米熔融盐(NMS)催化串联Knoevenagel-Michael环缩合反应合成四氢苯并[ b ]吡喃的方法,室温下在无溶剂条件下的芳族醛和丙二腈。此外,在相同条件下,以[HMIM] C(CN)3 } NMS为催化量,通过4-羟基香豆素,芳香醛和丙二腈的缩合反应合成了3,4-二氢吡喃并[ c ]色烯衍生物。
Synthesis, screening and docking of fused pyrano[3,2- d ]pyrimidine derivatives as xanthine oxidase inhibitor
In view of developing effective xanthine oxidase (XO) enzyme inhibitors, a series of 100 pyrano[3,2-d]pyrimidine derivatives was synthesized and evaluated for its in vitro XO enzyme inhibition. Structure activity relationship has also been established. Among all the synthesized compounds, 4d, 8d and 9d were found to be the most potent enzyme inhibitors with IC50 values of 8μM, 8.5μM and 7μM, respectively