Abstract

AbstractThe crystal structure of (LiCH2CH2CH2OMe)4 [(3)4] consists of a distorted (CH2)4Li4 cube, four parallel edges of which are spanned by CH2CH2OMe chains. The interatomic distances provide insights into the nature of alkyllithium‐Lewis base (ethers, tertiary amines) interactions and into the structural basis of the differential reactivity and stability of primary and secondary alkyllithium tetramers.NMR of hydrocarbon solutions indicates that under these conditions the solid state tetramer is in equilibrium with a stereoisomer.

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