5 years ago

Generation and Trapping of a 1-Phosphafulvene: An Illustration of the PC/CC Analogy

Generation and Trapping of a 1-Phosphafulvene: An Illustration of the PC/CC Analogy
Zhengsong Hu, Kang Zhao, Zheng Duan, Rongqiang Tian, François Mathey, Yanjie Liu
1-Phosphafulvenes can be easily generated by dissociation of dimers resulting from the reaction of phospholes with aldimines. As electron-rich partners, they act as 4π phosphadienic systems toward alkenes and alkynes in [4 + 2] cycloaddition reactions. As electron-poor partners, they act either as 2π systems toward conjugated dienes in [2 + 4] cycloaddition reactions via their P═C double bond or as 6π systems toward phosphadienes in [6 + 4] cycloaddition reactions.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b02574

DOI: 10.1021/acs.orglett.7b02574

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