Polyester nitrile N-oxides for click reactions synthesized with nitroalkane precursors as the initiator

2020 ◽  
Vol 11 (18) ◽  
pp. 3115-3119 ◽  
Author(s):  
Toyokazu Tsutsuba ◽  
Hiromitsu Sogawa ◽  
Toshikazu Takata

Polyesters that have a nitrile N-oxide function at the initiation end were prepared and applied to a catalyst-free click reaction for star polymer synthesis.

2001 ◽  
Vol 39 (16) ◽  
pp. 2777-2783 ◽  
Author(s):  
Martina Stenzel-Rosenbaum ◽  
Thomas P. Davis ◽  
Vicki Chen ◽  
Anthony G. Fane

2018 ◽  
Vol 55 (1B) ◽  
pp. 152
Author(s):  
Thuy Thu Truong

In this study, the synthesis of a telechelic linker bearing both azide and thiol functional groups was described. The reaction conditions were investigated to optimize the reaction yield. The product was analyzed using thin layer chromatography (TLC) and proton nuclear magnetic resonance (1H NMR). The employment of the obtained azide–thiol linker in heterogeneous polymer “click” functionalization was demonstrated for the first time, which was monitored by an online FT–IR method. The obtained telechelic azide–thiol linker is envisioned to be useful chemical tools to link macromolecular chains via orthogonal click reactions.


2019 ◽  
Vol 143 ◽  
pp. 104321 ◽  
Author(s):  
Wansheng Zong ◽  
Su Wang ◽  
Juan Li ◽  
Jintao Wang ◽  
Mingming Li ◽  
...  

2020 ◽  
Vol 49 (43) ◽  
pp. 15504-15510
Author(s):  
Lisa Suntrup ◽  
Julia Beerhues ◽  
Oliver Etzold ◽  
Biprajit Sarkar

A series of mono- and dicopper complexes with mesoionic carbenes are tested as pre-catalysts for the halo-click reaction.


2016 ◽  
Vol 3 (9) ◽  
pp. 160090 ◽  
Author(s):  
Biswadip Banerji ◽  
K. Chandrasekhar ◽  
Sunil Kumar Killi ◽  
Sumit Kumar Pramanik ◽  
Pal Uttam ◽  
...  

‘Click reactions’ are the copper catalysed dipolar cycloaddition reaction of azides and alkynes to incorporate nitrogens into a cyclic hydrocarbon scaffold forming a triazole ring. Owing to its efficiency and versatility, this reaction and the products, triazole-containing heterocycles, have immense importance in medicinal chemistry. Copper is the only known catalyst to carry out this reaction, the mechanism of which remains unclear. We report here that the ‘click reactions’ can also be catalysed by silver halides in non-aqueous medium. It constitutes an alternative to the well-known CuAAC click reaction. The yield of the reaction varies on the type of counter ion present in the silver salt. This reaction exhibits significant features, such as high regioselectivity, mild reaction conditions, easy availability of substrates and reasonably good yields. In this communication, the findings of a new catalyst along with the effect of solvent and counter ions will help to decipher the still obscure mechanism of this important reaction.


2018 ◽  
Vol 92 ◽  
pp. 61-68 ◽  
Author(s):  
Ruming Jiang ◽  
Meng Cao ◽  
Meiying Liu ◽  
Liangji Liu ◽  
Qiang Huang ◽  
...  

Author(s):  
Haiqiang Wu ◽  
Jingzhi Sun ◽  
Anjun Qin ◽  
Ben Zhong Tang

2020 ◽  
Vol 5 (17) ◽  
pp. 5312-5315 ◽  
Author(s):  
Chen‐Gang Wang ◽  
Sumitra Cheawchan ◽  
Airong Qiagedeer ◽  
Shunsuke Monjiyama ◽  
Satoshi Uchida ◽  
...  

2015 ◽  
Vol 6 (18) ◽  
pp. 3543-3548 ◽  
Author(s):  
Haoze Hu ◽  
Jun You ◽  
Weiping Gan ◽  
Jinping Zhou ◽  
Lina Zhang

Allyl cellulose can be synthesized from cellulose and allyl chloride in NaOH/urea aqueous solutions and is further used to synthesize a variety of new cellulose derivatives through the thiol–ene click reaction.


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