Reactivity Studies on a Diazadiphosphapentalene
Reactivity Studies on a Diazadiphosphapentalene
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DOI：
10.1002/chem.201600935
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发表时间：
2016-07-11
影响因子：
4.3
通讯作者：
Kinjo, Rei
中科院分区：
文献类型：
--
作者：
Cui, Jingjing;Li, Yongxin;Kinjo, Rei
The reactivity of diazadiphosphapentalene 1 towards various substrates was investigated. Reaction of 1 with ammonia-borane resulted in transfer hydrogenolysis concomitantly with the cleavage of a P-N bond. By treatment of 1 with 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO), oxidation took place at one of the phosphorus atoms of 1, and a P-V/P-III mixed-valence derivative was isolated. At the same time, it was demonstrated that only one of the phosphorus atoms in 1 behaves as an electron donor for electrophiles and Lewis acids. The former afforded an intramolecularly coordinated phosphine-phosphenium species, whereas the latter demonstrates the ligand property of 1. UV irradiation induced rearrangement of 1 into another example of another diazadiphosphapentalene.
