Diphospha-Ureas from the Phosphaketene Ph3GePCO |
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| Authors: | Kevin M. Szkop Dr. Andrew R. Jupp Hlib Razumkov Maotong Xu Prof. Dr. Douglas W. Stephan |
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| Affiliation: | Department of Chemistry, University of Toronto, 80 St. George St. Toronto, Ontario, M5S3H6 Canada |
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| Abstract: | The phosphaketene Ph3GePCO is shown to react with the phosphide KP(tBu)2 to generate the anion [Ph3GePC(O)P(tBu)2]− 1 . This species reacts with CH3I or ClGePh3 to give the dissymmetric diphospha-ureas (tBu)2PC(O)P(GePh3)(CH3) 2 and (Ph3Ge)2PC(O)P(tBu)2 3 respectively. Sequential treatment of 2 with a base and CH3I affords a route to (tBu)2PC(O)P(CH3)2 5 . These species are products of the first modular diphospha-urea synthesis. The subsequent thermal and photochemical reactivity of these species was also probed and described. |
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| Keywords: | main-group elements phosphaethynolates phosphaketenes phospha-ureas photochemistry |
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