Synthesis, characterization, and catalytic application of Fe
<sub>3</sub>
O
<sub>4</sub>
‐Si‐[CH
<sub>2</sub>
]
<sub>3</sub>
‐N=CH‐aryl for the efficient synthesis of novel poly‐substituted pyridines
X‐ray diffraction (XRD), and scanning and transmission electron microscopy (SEM and TEM) were used to identify the MNPs. The catalytic activity of the MNPs was evaluated in the one‐pot synthesis of some novel poly‐substituted pyridine derivatives.
Fe 3 O 4磁性纳米颗粒(MNP)通过氨基丙基硅烷官能化并与芳族醛反应,Fe 3 O 4 -Si- [CH 2 ] 3 -N = CH-芳基和Fe 3 O 4 -Si-(CH 2)制备了3 ‐NH‐CH 2‐芳基MNP作为新型磁性纳米催化剂。使用傅立叶变换红外(FT-IR),X射线衍射(XRD)以及扫描和透射电子显微镜(SEM和TEM)来鉴定MNP。在一些新型的多取代吡啶衍生物的一锅法合成中评估了MNP的催化活性。
Divergent Syntheses of 2-Aminonicotinonitriles and Pyrazolines by Copper-Catalyzed Cyclization of Oxime Ester
作者:Qifan Wu、Yan Zhang、Sunliang Cui
DOI:10.1021/ol500094w
日期:2014.3.7
Copper-catalyzed cyclization of an oxime ester toward divergent heterocycle synthesis is reported. Oxime ester serves as an enamine precursor to cyclize with malononitrile and aldehydes for access to 2-aminonicotinonitriles in a one-pot reaction, while cyclizing with N-sulfonylimines leads to synthesis of pyrazolines.
ESSAWY A.; HAMED A. A., INDIAN J. CHEM., 1978, B 16, NO 10 880-882
作者:ESSAWY A.、 HAMED A. A.
DOI:——
日期:——
QUINTEIRO M.; MARTIN N.; SEOANE C.; SOTO J. L., HETEROCYCLES, 24,(1986) N 6, 1675-1682