Cycloaddition of P−C Single Bonds: Stereoselective Formation of Benzo‐1,3,6,2‐trioxaphosphepine Complexes via a Ditopic van der Waals Complex |
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| Authors: | Dr. Payal Malik Prof. Dr. Arturo Espinosa Ferao Dr. Gregor Schnakenburg Prof. Dr. Rainer Streubel |
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| Affiliation: | 1. Sant Longowal Institute of Engineering & Technology, Longowal, Sangrur, Punjab, India;2. http://www.um.es/funcmolecmat/artuesp/;3. Departamento de Química Orgánica, Facultad de Química, Universidad de Murcia, Murcia, Spain;4. http://anorganik.chemie.uni‐bonn.de/akstreubel/;5. Institut für Anorganische Chemie der Rheinischen Friedrich-Wilhelms-Universit?t Bonn, Bonn, Germany |
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| Abstract: | While phosphaalkenes and phosphanes are known to participate in [4+n] cycloaddition reactions, P?C single bonds are inert in this respect. Herein, reactions of oxaphosphirane complexes with tetrachloro‐ortho‐benzoquinone are presented that reveal a stereoselective reaction of the endocyclic P?C bond to afford benzo‐1,3,6,2‐trioxaphosphepine complexes. High‐level DFT calculations provide evidence that the final product is derived from a sequence of three consecutive steps involving a ditopic van der Waals complex. |
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| Keywords: | cycloaddition oxaphosphirane complexes phosphanes ring expansion trioxaphosphepine complexes |
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