Product selective reaction controlled by the combination of palladium nanoparticles, continuous microwave irradiation, and a co-existing solid; ligand-free Buchwald–Hartwig amination <i>vs.</i> aryne amination
作者:Makito Yamada、Ryousuke Ohta、Kazuo Harada、Tsunayoshi Takehara、Hitoshi Haneoka、Yosuke Murakami、Takeyuki Suzuki、Yuuta Ohki、Naoyuki Takahashi、Toshiki Akiyama、Natchanun Sirimangkalakitti、Makoto Sako、Kenichi Murai、Masayoshi Arai、Mitsuhiro Arisawa
DOI:10.1039/d1gc01782a
日期:——
metal solid. In this methodology, a microwave-controlled product selectivity was achieved between Buchwald–Hartwig amination and aryne amination performed under strongly basic conditions and at a high reaction temperature, because a polar chemical species such as Ar–Pd–halogen might be activated selectively by microwave radiation. Moreover, our catalyst could be used repeatedly over 10 times, and the amount
我们开发了一种连续微波辐射辅助 Buchwald-Hartwig 胺化,使用我们原始的 Pd 纳米颗粒催化剂和铜板作为共存的金属固体。在这种方法中,在强碱性条件和高反应温度下进行的 Buchwald-Hartwig 胺化和芳炔胺化之间实现了微波控制的产物选择性,因为极性化学物质如 Ar-Pd-卤素可能被微波选择性激活辐射。此外,我们的催化剂可以重复使用10次以上,并且可以将Pd浸出量控制在较低的水平。