lithium allyl
- CAS No.
- 3052-45-7
- Chemical Name:
- lithium allyl
- Synonyms
- allyllithium;lithium allyl;Lithium, 2-propenyl-
- CBNumber:
- CB14648049
- Molecular Formula:
- C3H5Li
- Molecular Weight:
- 48.01
- MDL Number:
- MOL File:
- 3052-45-7.mol
lithium allyl Chemical Properties,Uses,Production
Uses
Lithium allyl is used as an allyling agent in substitution and addition reactions; used to attach allylic groups to other metals and nonmetals.
Preparation
Lithium allyl is prepared from allyl phenyl ether and Li in THF/ether is recommended for large scale, tinlithium exchange between allyltins and phenyllithium for pure samples.9 Halogen-metal exchange is impractical due to fast Wurtz coupling. Allyllithium can also be made at -78 °C by the reaction of nButyllithium with allyl methyl (or phenyl) selenide,10 and by metallating propene with butyllithium.
storage
Lithium allyl must be prepared and transferred under inert gas to exclude oxygen and moisture.
