Abstract
The reactivity of the 2-phosphaethynolate anion (PCO-) towards a cyclic trisilene (cSi3(Tip)4) is reported. The result is the net activation of the P—C and Si—Si multiple bonds of the precursors affording a heteroatomic bicyclo[1.1.1]pentan-2-one analogue ([P(CO)Si-3(Tip)4]-; 1). This reaction can be interpreted as the formal addition of a phosphide and a carbonyl across the Si—Si double bond. Photolytic decarbonylation of 1 results in the incorporation of the phosphide vertex into the cyclotrisilene scaffold, yielding a congener of the cyclobutene anion with considerable allylic character.
Original language | English |
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Pages (from-to) | 683-686 |
Number of pages | 4 |
Journal | Angewandte Chemie International Edition |
Volume | 54 |
Issue number | 2 |
Early online date | 21 Nov 2014 |
DOIs | |
Publication status | Published - 7 Jan 2015 |
Keywords
- 2-phosphaethynolate
- main-group chemistry
- multiple bonds
- silenes
- silicon
- HALF-PARENT PHOSPHASILENE
- SODIUM PHOSPHAETHYNOLATE
- CHEMICAL-SHIFTS
- COVALENT RADII
- SILICON
- PHOSPHORUS
- DISILENES
- CONJUGATION
- METALATION
- CHEMISTRY