Zhao, Yajun; Zhu, Shuaishuai; Liao, Can; Wang, Yong; Lam, Jacky W. Y.; Zhou, Xingping; Wang, Xianhong; Xie, Xiaolin; Tang, Ben Zhong published the artcile< Cobalt-Mediated Switchable Catalysis for the One-Pot Synthesis of Cyclic Polymers>, Safety of But-3-en-1-ol, the main research area is cyclic polymer cobalt mediated switchable catalysis; biodegradable polymers; cyclic polymers; photo-induced radical closure; ring-opening copolymerization; switchable catalysis.
A cobalt salen pentenoate complex [salen = (R,R)-N,N’-bis(3,5-di-tertbutylsalicylidene)-1,2-cyclohexanediamine] is rationally designed as the catalyst for the ring-opening copolymerization (ROCOP) of epoxides/anhydrides/CO2. Via migratory insertion of carbon monoxide (CO) into the Co-O bonds, the ROCOP-active species α-alkene-ω-O-CoIII(salen) can be rapidly and quant. transformed into α-alkene-ω-O2C-CoIII(salen) telechelic linear precursors. Upon dilution of reaction mixtures, the homolytic cleavage of Co-C bonds induced by visible light generates α-alkene acyl radicals that spontaneously undergo intramol. radical addition to afford organocobalt-functionalized cyclic polyesters and CO2-based polycarbonates with excellent regioselectivity. The cyclic products can either react with radical scavengers to generate metal-free cyclic polymers or serve as photo-initiators for organometallic-mediated radical polymerization (OMRP) to produce tadpole-shaped copolymers.
Angewandte Chemie, International Edition published new progress about Cyclization. 627-27-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H8O, Safety of But-3-en-1-ol.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts