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Stable Silapyramidanes
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DOI：10.1021/jacs.2c13530.png)
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Abstract
En 中文
Starting from tetrakis(trimethylsilyl)cyclobutadiene and an amidinate-supported silylene of the Roesky-type, a sequence of addition and reduction cleanly gives the elusive silapyramidane via an isolable cyclobutene intermediate with an exocyclic Si=C bond. The silapyramidane features an unusually shielded 29Si NMR resonance at -448.3 ppm for the apex silicon atom. Treatment with Fe2(CO)9 results in the formation of the corresponding silapyramidane-iron complex. Silapyramidane also reacts with the cyclobutadiene starting material to cleanly afford a fluorescent spirobis(silole).
Keywords:
CP-ASTERISK-GA
COORDINATION CHEMISTRY
DILITHIUM SALT
SILICON
SILYLENE
CATION
LIGAND
REACTIVITY
ENERGY
SILOLE
Journal
IF:
15.6
Papers:
20.0W
Citations:
60.2W