Unusual nucleophilic reactivity of a dithiolene-based N-heterocyclic silane.
Dalton Trans
; 53(14): 6178-6183, 2024 Apr 02.
Article
em En
| MEDLINE
| ID: mdl-38506299
ABSTRACT
While the dithiolene-based N-heterocyclic silane (4) reacts with two equivalents of BX3 (X = Br, I) to give zwitterionic Lewis adducts 5 and 8, respectively, the parallel reaction of 4 with BCl3 results in 10, a dithiolene-substituted N-heterocyclic silane, via the Si-S bond cleavage. Unlike 5, the labile 8 may be readily converted to 9via BI3-mediated cleavage of the Si-N bond. The formation of 5 and 8 confirms that 4 uniquely possesses dual nucleophilic sites (a) the terminal sulphur atom of the dithiolene moiety; and (b) the backbone carbon of the N-heterocyclic silane unit.
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MEDLINE
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En
Ano de publicação:
2024
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Article