《Cu-Catalyzed four-component polymerization of alkynes, sulfonyl azides, nucleophiles and electrophiles》 was published in Polymer Chemistry in 2021. These research results belong to He, Junnan; Zheng, Nan; Li, Ming; Zheng, YuBin; Song, Wangze. Safety of 1,4-Diethynyl-2,5-dimethoxybenzene The article mentions the following:
Multicomponent polymerization has emerged as a promising strategy to develop functional polymers with versatile structures. In this work, a Cu-catalyzed four-component polymerization was developed using diynes, sulfonyl azides, nucleophiles, and a variety of electrophiles including alkyl glyoxylates, nitroalkenes, and Morita-Baylis-Hillman adducts to successfully synthesize a library of α-functionalized poly(N-sulfonylimidates)s with a wide substrate scope and high mol. weights (up to 20 000 g mol-1) in high yields (up to 86%). Such α-functionalized poly(N-sulfonylimidates)s could be further post-modified or utilized for the design of multi-functional and biodegradable polymers. In the experiment, the researchers used 1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6Safety of 1,4-Diethynyl-2,5-dimethoxybenzene)
1,4-Diethynyl-2,5-dimethoxybenzene(cas: 74029-40-6) belongs to ethers.The C-O bonds that comprise simple ethers are strong. Safety of 1,4-Diethynyl-2,5-dimethoxybenzene They are unreactive toward all but the strongest bases. Although generally of low chemical reactivity, they are more reactive than alkanes.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem