نتایج جستجو برای: cyclooctene
تعداد نتایج: 246 فیلتر نتایج به سال:
AB diblock copolymers were prepared by sequential ring-opening metathesis polymerization of cyclooctenes catalyzed by a Ru-based Grubbs catalyst. The relatively slow polymerization of cis-3-phenylcyclooct-1-ene (3PC) or cis-cyclooct-2-en-1-yl acetate (3AC) was first carried out and then followed by the faster polymerization of unsubstituted cis-cyclooctene (COE) from the active Ru-alkylidene ch...
A critical limitation of bioorthogonal click chemistry for in vivo applications has been its low reaction efficiency due to the pharmacokinetic barriers, such as blood distribution, circulation, and elimination in living organisms. To identify key factors that dominate the efficiency of click chemistry, here a rational design of near-infrared fluorophores containing tetrazine as a click moiety ...
The efficient synthesis of two new stereoisomeric 3-aminocyclooctanetriols and their halocyclitol derivatives starting from cis,cis -1,3-cyclooctadiene are reported. Reduction cyclooctene endoperoxide, obtained by photooxygenation -1,3-cyclooctadiene, with zinc yielded a diol followed acetylation the hydroxy group, which gave dioldiacetate OsO 4 /NMO oxidation. cyclooctane prepared was converte...
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