7338-94-5Relevant articles and documents
Multicomponent tandem reactions and polymerizations of alkynes, carbonyl chlorides, and thiols
Zheng, Chao,Deng, Haiqin,Zhao, Zujin,Qin, Anjun,Hu, Rongrong,Tang, Ben Zhong
, p. 1941 - 1951 (2015)
Multicomponent tandem reactions (MCTRs), with multiple bonds formed in a highly concise fashion in a single vessel, have been noted as one of the most powerful and popular synthetic strategies in modern organic chemistry. Attracted by their operational simplicity, synthetic efficiency, high atom economy, and environmental benefit, the MCTRs and the corresponding multicomponent tandem polymerizations (MCTPs) of alkynes, carbonyl chlorides, and aliphatic/aromatic thiols were developed. By combining the Sonogashira coupling reaction between alkynes and carbonyl chlorides, and the hydrothiolation reaction of electron-deficient alkynone intermediates, high atom economy was achieved in such one-pot, two-step, three-component reactions/polymerizations. The MCTPs can proceed efficiently under mild conditions near room temperature to afford sulfur-rich polymers with high molecular weight, high yield, high regioselectivity, and good stereoselectivity. Through the MCTPs of different combination of monofunctional and bifunctional monomers, polymers with tunable backbone structures and photophysical properties can be obtained. These polymers generally possess good solubility and film-forming ability. Their thin films enjoy high refractivity, and their photosensitivity enables easy modulation of the thin film refractive indices.
Organoborane-catalyzed selective 1,2-reduction of alkynones with hydride transfer: Synthesis of benzyl alkynes
Zhai, Lele,Yang, Zhigang,Man, Qinghong,Yang, Mingyu,Ren, Yangqing,Wang, Lei,Li, Huilin,She, Xuegong
, (2022/01/28)
Benzyl alkynes are important organic building blocks in organic synthesis. We report herein a B(C6F5)3-catalyzed site-selective 1,2-reduction of readily available alkynones to access benzyl alkyne derivatives. Under the de
Nickel (II) dibenzotetramethyltetraaza[14]annulene supported on DFNS nanoparticles catalyst in carbonylative sonogashira coupling
Mohsen Sadeghzadeh, Seyed,Tian, Shaopeng,Yang, Qianqian
, (2021/01/18)
In this study, the carbonylative sonogashira coupling reaction was performed in the presence of CO (2 MPa) and Nitmtaa?DFNS as NPs. Nickel(II)dibenzotetramethyltetraaza[14]annulene complex (Nitmtaa) prepared and immobilized on amino-fucntionnalized DFNS (N-DFNS) via Ni[sbnd]N (NH2) bond to obtain a stable and reusable new nanocatalyst named as Nitmtaa?DFNS. Good to superb performance products were provided deploying Nitmtaa?DFNS nanocatalyst. In addition, the anatomy of Nitmtaa?DFNS has been distinguished by various methods, including XRD, VSM, FT-IR, SEM, EDX, TEM, and TGA. In addition, the hot filtration test provided complete insight into the heterogeneity of the catalyst. The reuse and recycling of the catalyst were repeatedly investigated for coupling reactions. In addition, the mechanism of the coupling reactions was thoroughly studied.