Reactivity Study of a Chlorostannylene Derived from Bis(iminophosphoranyl)methane. Issue 20 (3rd June 2014)

• Record Type: Journal Article
• Authors: Leung, Wing‐Por; Kan, Kwok‐Wai; Chan, Yuk‐Chi; Mak, Thomas C. W.
• Is Part Of: European journal of inorganic chemistry. Issue 20(2014)
• Page Start: 3191
• Page End: 3199
• Publication Date: 2014-06-03
• Subjects: Tin -- N ligands -- Low‐valent compounds -- Structure elucidation; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201402074
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: The reactivity of the chlorostannylene [HC(PPh2 =NSiMe3 )2 SnCl] (2 ) with various substrates has been investigated. Compound2 acts as a two‐electron carbene‐like ligand and forms a complex with W(CO)5 THF (THF = tetrahydrofuran) to give [HC(PPh2 =NSiMe3 )2 (Cl)Sn→W(CO)5 ] (4 ). It reacts with benzil and 3, 5‐di‐ tert ‐butyl‐ o ‐benzoquinone to give the oxidative cycloaddition products [HC(PPh2 =NSiMe3 )2 (Cl)Sn{O(Ph)C=C(Ph)O}] (5 ) and [HC(PPh2 =NSiMe3 )2 (Cl)Sn{O(3, 5‐di‐ t Bu‐C6 H2 )O}] (6 ), respectively. The metathesis reaction of2 with excess sodium azide affords [HC(PPh2 =NSiMe3 )2 SnN3 ] (7 ). With silver(I) triflate, it forms an ionic triflate salt [HC(PPh2 =NSiMe3 )2 Sn][CF3 O2 SO] (8 ), which features an exceptionally long Sn··· OSO3 CF3 distance. It can act as a ligand‐transfer reagent by reacting with [Fe{N(SiMe3 )2 }2 ] to give [HC(PPh2 =NSiMe3 )2 Fe(μ‐Cl)]2 (9 ). The X‐ray structures of2 –9 have been determined. Abstract : The reactivity of the chlorostannylene [HC(PPh2 =NSiMe3 )2 SnCl] (2 ) towards W(CO)5 THF (THF = tetrahydrofuran), benzil, 3, 5‐di‐ tert ‐butyl‐ o ‐benzoquinone, sodium azide, silver triflate, and [Fe{N(SiMe3 )2 }2 ] is investigated. The products are fully characterized by X‐ray crystallography.