Synthesis, Characterization, and Dehydrogenation Activity of an Iridium Arsenic Based Pincer Catalyst
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https://figshare.com/articles/dataset/Synthesis_Characterization_and_Dehydrogenation_Activity_of_an_Iridium_Arsenic_Based_Pincer_Catalyst/2246317
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资源简介：
A new arsenic-based pincer (AsOCOAs)
dehydrogenation catalyst has
been synthesized, IrHCl{2,6-C6H3-(O-AsBut2)} (3). Treatment with an equivalent
of base (NaO-tert-butoxide) under an atmosphere of
hydrogen gas affords the dihydride catalyst IrH2{2,6-C6H3-(O-AsBut2)} (4). The activity of 3 was explored under transfer dehydrogenation
conditions with cyclooctane and tert-butyl ethylene,
giving a maximum turnover number of 960 at 175 °C in 24 h. Acceptorless
dehydrogenations were also explored with pyrrolidine-based molecules,
ethylperhydrocarbazole (5), methylperhydroindole (6), and butylpyrrolidine (7), in which all results
indicate 3 is roughly half as active as the analogous
phosphine-based pincer catalyst 2. Akin to the phosphine
pincer catalysts the activity was seen to steadily improve with increasing
temperature, peaking at 175 °C, upon which thermal decomposition
sets in.
创建时间：
2016-02-16
