Acyllithium structure

Benzotriazol-l-yl)alkoxymethyllithiums 451 and 2-lithiooxazolidines 452 are two types of acyllithium reagents which can be considered as protected formyl anions with hemi-aminal structure. 

This volume, which complements the earlier one, contains 9 chapters written by experts from 7 countries. These include a chapter on the dynamic behavior of organolithium compounds, written by one of the pioneers in the field, and a specific chapter on the structure and dynamics of chiral lithium amides in particular. The use of such amides in asymmetric synthesis is covered in another chapter, and other synthetic aspects are covered in chapters on acyllithium derivatives, on the carbolithiation reaction and on organolithi-ums as synthetic intermediates for tandem reactions. Other topics include the chemistry of ketone dilithio compounds, the chemistry of lithium enolates and homoenolates, and polycyclic and fullerene lithium carbanions. 

The structure of acyllithium has not yet been established experimentally. A priori, three types of structures can be envisioned. These are acyllithium (or 1/ -acyllithium), / -acyllithium and lithioxy carbene. For the case of lithioxy carbene, the... 

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