Sequential Michael addition thiol–ene and radical-mediated thiol–ene reactions in one-pot produced sequence-ordered polymers

作者: Lei Yu , Long-Hai Wang , Zong-Tao Hu , Ye-Zi You , De-Cheng Wu

DOI: 10.1039/C4PY01363H

关键词: Ene reactionRadicalAlkeneSequence (biology)ThiolPolymerDouble bondPolymer chemistryMichael reactionOrganic chemistryChemistry

摘要: Sequential Michael addition-based thiol–ene and free radical mediated reactions for preparing sequence-ordered polymers are reported the first time. The thiols produced in situ via ring-opening of thiolactones, they can readily react with electron-deficient carbon–carbon double bond allyl methacrylate thiol–ene, but unable to electron-rich without radicals, intermediates thiol alkene units formed. After addition complete, is activated by UV irradiation, enabling reaction a radical-mediated reaction, form high molecular weights.

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