Monomeric metalated sulfones like 1 are a rarity. In 1, K⊕ is bonded only to the O atoms of the sulfonyl group. Accordingly, the negative charge is stabilized largely by polarization and negative anionic hyperconjugation. Comparison of the effect of metalation on the 1J(13C, 29Si) values of several carbanions stabilized by Si (and S) showed that these coupling constants are good probes for the structure of carbanions in solution.
No takes yet. Share an insight, caveat, or question.
Gais et al. (1988) studied this question.
Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context: