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   Handford, Rex C. ; Zhong, Lingfei ; Tilley, T. Don ( September 2022 , Organometallics)
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   https://doi.org/10.1021/acsnano.2c07223  

   McCandler, Caitlin A. ; Dahl, Jakob C. ; Persson, Kristin A. ( December 2022 , ACS Nano)
3. Ligand Reactivity in Diarylamido/Bis(Phosphine) PNP Complexes of Mn(CO) 3 and Re(CO) 3

   https://doi.org/10.1021/ic9010218  

   Radosevich, Alexander T. ; Melnick, Jonathan G. ; Stoian, Sebastian A. ; Bacciu, Deborha ; Chen, Chun-Hsing ; Foxman, Bruce M. ; Ozerov, Oleg V. ; Nocera, Daniel G. ( October 2009 , Inorganic Chemistry)
4. Sequential Deoxygenation of CO 2 and NO 2 – via Redox-Control of a Pyridinediimine Ligand with a Hemilabile Phosphine

   https://doi.org/10.1021/acs.inorgchem.3c02323  

   Lewine, Hanalei R. ; Teigen, Allison G. ; Trausch, April M. ; Lindblom, Kaitlyn M. ; Seda, Takele ; Reinheimer, Eric W. ; Kowalczyk, Tim ; Gilbertson, John D. ( September 2023 , Inorganic Chemistry)
5. Phosphine-catalyzed activation of cyclopropenones: a versatile C 3 synthon for (3+2) annulations with unsaturated electrophiles

   https://doi.org/10.1039/D2SC04092A  

   He, Xin ; Ma, Pengchen ; Tang, Yuhai ; Li, Jing ; Shen, Shenyu ; Lear, Martin J. ; Houk, K. N. ; Xu, Silong ( November 2022 , Chemical Science)

   We herein report a phosphine-catalyzed (3 + 2) annulation of cyclopropenones with a wide variety of electrophilic π systems, including aldehydes, ketoesters, imines, isocyanates, and carbodiimides, offering products of butenolides, butyrolactams, maleimides, and iminomaleimides, respectively, in high yields with broad substrate scope. An α-ketenyl phosphorous ylide is validated as the key intermediate, which undergoes preferential catalytic cyclization with aldehydes rather than stoichiometric Wittig olefinations. This phosphine-catalyzed activation of cyclopropenones thus supplies a versatile C 3 synthon for formal cycloadditon reactions. 

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