Abstract
Reaction of the arylchlorosilylene-NHC adduct ArSi(NHC) Cl [Ar= 2,6-Trip(2)C(6)H(3); NHC=(MeC)(2)(NMe)(2)C:] 1 with one molar equiv of lithium diphenylphosphanide affords the first stable NHC-stabilized acyclic phosphinosilylene adduct 2 (ArSi(NHC)PPh2), which could be structurally characterized. Compound 2, when reacted with one molar equiv selenium and sulfur, affords the silanechalcogenones 4a and 4b (ArSi(NHC)(= E)PPh2, 4a: E= Se, 4b: E= S), respectively. Conversion of 2 with an excess of Se and S, through additional insertion of one chalcogen atom into the Si - P bond, leads to 3a and 3b (ArSi(NHC)(= E)-E-P(= E)Ph-2, 3a: E= Se, 3b: E= S), respectively. Additionally, the exposure of 2 to N2O or CO2 yielded the isolable NHC-stabilized silanone 4c, Ar(NHC)(Ph2P) Si=O.
Original language | English |
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Pages (from-to) | 18930-18933 |
Number of pages | 4 |
Journal | Chemistry: a European journal |
Volume | 21 |
Issue number | 52 |
DOIs | |
Publication status | Published - 21 Dec 2015 |
Keywords
- multiple bonds
- olefin analogues
- phosphorus
- silicon
- zwitterions
- N-HETEROCYCLIC-CARBENE
- STABLE SILYLENES
- DOUBLE-BONDS
- STRUCTURAL-CHARACTERIZATION
- REACTIVITY
- SILANONE
- TE
- CHEMISTRY
- LIGANDS
- SERIES