32153-18-7Relevant articles and documents
Heterogeneous catalysis of a coordination network: Cyanosilylation of imines catalyzed by a Cd(II)-(4,4′-bipyridine) square grid complex
Ohmori, Osamu,Fujita, Makoto
, p. 1586 - 1587 (2004)
A coordination network prepared from Cd(NO3)2 and 4,4′-bipyridine (4,4′-bpy) catalyzed the cyanosilylation of imines under heterogeneous conditions.
A carbon dioxide-promoted three-component Strecker reaction
Fauziev, Ruslan V.,Ivanov, Roman E.,Kuchurov, Ilya V.,Zlotin, Sergei G.
, p. 10137 - 10144 (2021/12/24)
A three-component Strecker reaction of aldehydes, amines and KCN has been performed for the first time in supercritical carbon dioxide. In the proposed procedure, non-toxic and non-flammable carbon dioxide acts not only as an environmentally benign reaction medium but also as a reaction promoter via in situ formation of carbonic acid which provides a gradual release of the true cyanating agent (HCN) from available KCN. The reaction conditions (pressure, temperature, and concentrations of reagents) were optimized, and various aromatic and aliphatic amines and aldehydes were transformed into valuable α-amino nitriles including prospective pharmacological substances. The equimolar amount of used cyanogen reagent, carrying out the process in a sealed autoclave in a 'green' solvent medium under mild conditions (90 bar, 35 °C) along with the high yields of products and the scalability of the developed procedure make it suitable for sustainable industrial applications. This journal is
Targeted development of hydrophilic porous polysulfonamide gels with catalytic activity
Alavinia, Sedigheh,Ghorbani-Vaghei, Ramin
, (2020/07/03)
We report the use of a template and functional monomers in the synthesis of three novel polysulfonamide gels with new architectures and functional groups. These mesoporous polysulfonamide gels were prepared by the condensation polymerization of benzene-1,3-disulfonyl chloride (as the main precursor), linear monomers, and cross-linkers (as variable precursors) in the presence of a silica template by a combination of sol-gel chemistry and the nanocasting technique. In this synthesis pathway, in situ polymerization onto the template surface led to the construction of a silica/polymer nanocomposite. Next, after removal of the template, the nanocomposite gels were transformed into mesoporous polysulfonamide nanospheres. After the physicochemical identification of the synthesized materials, functionalized polysulfonamides were used as reusable novel catalysts with high efficiency for the Strecker reaction under mild conditions. These polymers have Br?nsted/Lewis acid active sites, a mesoporous structure, and hydrogen bonding. Moreover, since these polymers are hydrogels that can absorb water, they can promote the Strecker reaction through chemical absorption of the generated water as a driving force. Overall, this article describes a novel synthesis procedure and application of porous polysulfonamide gels.
