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Transition metal-catalyzed [2 + 2 + 2] cycloaddition of nitrogen-linked 1,6-diynes: a straightforward route to fused pyrrolidine systems

机译:过渡金属催化的[2 + 2 + 2]环连接的氮连接的1,6-二炔:熔融吡咯烷体系的直接途径

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Transition metal-catalyzed [2 + 2 + 2] cycloadditions of nitrogen-linked 1,6-diynes with unsaturated motifs, such as alkynes, alkenes, nitriles, ketenes and isocyanates, have recently attracted more attention from synthetic organic chemists because of their high efficiency in the construction of numerous pyrrolidine based systems. Utilizing different chiral transition metal catalysts to access challenging chiral skeletons has been extensively explored in recent years. We hope to highlight the power of [2 + 2 + 2] cycloaddition chemistry to access a variety of fused pyrrolidine structures from inexpensive and easily available nitrogen-linked 1,6-diynes. The literature has been surveyed until the end of 2016.
机译:过渡金属催化的具有不饱和基团的氮键合的1,6-二炔(例如炔烃,烯烃,腈,烯酮和异氰酸酯)的过渡金属催化[2 + 2 + 2]环加成反应,由于它们的高催化活性,最近引起了合成有机化学家的更多关注。众多基于吡咯烷的系统的高效构建。近年来,已经广泛地探索了使用不同的手性过渡金属催化剂来获得具有挑战性的手性骨架。我们希望着重强调[2 + 2 + 2]环加成化学从低价且容易获得的氮连接的1,6-二炔上获得各种稠合吡咯烷结构的能力。文献已被调查到2016年底。

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