A new uncatalyzed method for the preparation of cyanohydrin O-alkyl ethers was developed using the high-pressure-promoted reaction of acetals with trimethylsilylcyanide in nitromethane.
Synthesis and characterization of Pd supported on methane diamine (propyl silane) functionalized Fe<sub>3</sub>O<sub>4</sub> nanoparticles as a magnetic catalyst for synthesis of α-aminonitriles and 2-methoxy-2-phenylacetonitrile derivative via Strecker-type reaction under ambient and solvent-free conditions
作者:Hans J. Reich、Margaret M. Biddle、Robert J. Edmonston
DOI:10.1021/jo0478050
日期:2005.4.1
There have been a number of reports of the kinetic conjugate (1,4) addition of metalated arylacetonitriles to enones. Several proposals have been made to explain this behavior based on nucleophile structure or aggregation state or on the HSAB properties of the reactants. A reexamination of these studies showed that in each case the 1,4 adducts resulted from equilibration of the kinetically formed 1
Synthesis of Pd supported on 3,4-diaminobenzoic acid functionalized Fe<sub>3</sub>O<sub>4</sub> nanoparticles as a magnetic catalyst for synthesis of 2-methoxy-2-phenylacetonitrile derivative via a strecker-type reaction under ambient and solvent-free conditions
作者:Hanpeng Zhang、Mohaddese Mirshekari
DOI:10.1080/00958972.2021.2024172
日期:2021.12.17
Abstract Pd supported on 3,4-diaminobenzoic acid functionalized Fe3O4 magnetic nanoparticles as an organic-inorganic hybrid heterogeneous catalyst was fabricated and characterized by FT-IR, XRD, SEM, TEM, TGA, VSM, EDX, and ICP-AES techniques. The catalytic activity of the magnetic catalyst was probed through a Strecker-type reaction for one-pot synthesis of 2-methoxy-2-phenylacetonitrile derivatives
摘要 制备了负载在 3,4-二氨基苯甲酸功能化 Fe 3 O 4磁性纳米粒子上的 Pd 作为有机-无机杂化多相催化剂,并通过 FT-IR、XRD、SEM、TEM、TGA、VSM、EDX 和 ICP-AES 技术对其进行了表征. 磁性催化剂的催化活性通过 Strecker 型反应在环境和无溶剂条件下一锅合成 2-甲氧基-2-苯基乙腈衍生物进行了探测。该协议的优点是程序简单、产量高、反应时间短和环境友好的方法。催化剂很容易使用外部磁铁分离,并可重复使用,而不会显着降低其催化效率。