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The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
Published on: April 10, 2015
Phosphinidene Transfer by an N-Heterocyclic Carbene-Parent Phosphinidene Complex
Shina Quek1, Ren Ishizeki1, Zheng-Feng Zhang2
1School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore 637371, Singapore.
None:
The use of N-heterocyclic carbene-phosphinidene complexes for phosphinidene transfer reactions presents a significant challenge. The (1,3-bis(isopropyl)imidazol-2-ylidene)-parent phosphinidene complex 1 was found to successfully transfer the parent phosphinidene to both 9,10-phenanthrenequinone and the amidinato silylsilylene complex 3, affording the imidazolium tris(phenanthrene-9,10-dioxy)phosphate 2 and amidinato phosphasilene 4, respectively. Theoretical studies reveal that the parent phosphinidene transfer from the N-heterocyclic carbene to the silylsilylene proceeds via an SN2-type mechanism.
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