Unique chemoselective Strecker-type reaction of acetals with TMSCN catalyzed by MgI<sub>2</sub> etherate
作者:Hua Li、Haokun Pan、Xiangwei Meng、Xingxian Zhang
DOI:10.1080/00397911.2019.1711413
日期:2020.3.3
Abstract An efficient and convenient Strecker-type addition of various substituted aromaticacetals, heteroaromatic acetals and α, β-unsaturated acetals with trimethylsilyl cyanide (TMSCN) is achieved catalyzed by 10 mol% of MgI2 etherate (MgI2•(Et2O)n) in a mild, and high chemoselective manner with good to excellent yields. A non-coordinating reaction media (i.e., CH2Cl2) played a vital role in this
Light‐Induced Metal‐Free Generation of Cyanocarbenes from Alkynyl Triazenes for the Synthesis of Nitrile Derivatives
作者:Elena Michel、Fabian F. Grieser、Alexandra V. Mackenroth、Michael Schukin、Petra Krämer、Shaista Tahir、Frank Rominger、Matthias Rudolph、A. Stephen K. Hashmi
DOI:10.1002/anie.202309274
日期:2023.10.16
Photoactivation of alkynyl triazenes using different light sources induced an unusual cleavage of the triazene moiety leading to a methylene nitrile. By varying the reaction conditions, a cyanocarbene and a variety of substitution patterns bearing a nitrile group become selectively available under mild and metal-free conditions without the use of a toxic cyanating agent or the need for unstable substrates
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