Preparation of choline chloride–urea deep eutectic solvent‐modified magnetic nanoparticles for synthesis of various 2‐amino‐4
<i>H</i>
‐pyran derivatives in water solution
作者:Hossein Tavakol、Fariba Keshavarzipour
DOI:10.1002/aoc.3811
日期:2017.11
coating of Fe3O4 magnetic nanoparticles with cholinechloride–urea deep eutectic solvent using 3‐iodopropyltrimethoxysilane as a linker. The structure of this new catalyst was fully characterized via elemental analysis, transmission and scanning electron microscopies, X‐ray diffraction and Fourier transform infrared spectroscopy. It was employed in the synthesis of various 2‐amino‐4H‐pyran derivatives in
以3-碘丙基三甲氧基硅烷为连接基,用氯化胆碱-尿素的低共熔溶剂共价包覆Fe 3 O 4磁性纳米粒子,合成了一种新型的杂化磁性纳米催化剂。通过元素分析,透射和扫描电子显微镜,X射线衍射和傅里叶变换红外光谱对这种新型催化剂的结构进行了全面表征。它被用于合成各种2-氨基-4 H通过简单,绿色的过程将吡喃衍生物溶于水溶液。在室温下,芳族醛,可烯丙基的羰基和丙二腈之间的三组分反应可以高收率获得所需的产物。所使用的纳米催化剂易于使用磁场回收,并重复使用了四次(在随后的运行中),其催化活性降低了不到8%。
SOTO, J. L.;SEOANE, C.;MARTIN, N.;BLANCO, L. A., HETEROCYCLES, 1983, 20, N 5, 803-812
作者:SOTO, J. L.、SEOANE, C.、MARTIN, N.、BLANCO, L. A.
DOI:——
日期:——
QUINTEIRO M.; MARTIN N.; SEOANE C.; SOTO J. L., HETEROCYCLES, 24,(1986) N 6, 1675-1682
作者:QUINTEIRO M.、 MARTIN N.、 SEOANE C.、 SOTO J. L.
DOI:——
日期:——
Soto, Jose L.; Seoane, Carlos; Martin, Nazario, Heterocycles, 1983, vol. 20, # 5, p. 803 - 812
作者:Soto, Jose L.、Seoane, Carlos、Martin, Nazario、Blanco, Luis A.