METHOD OF PRODUCING ALKYLLITHIUM SOLUTION Russian patent published in 2024 - IPC C07F1/02 

Abstract RU 2825388 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a method of producing alkyllithium compounds used as initiators of anionic polymerisation and in various organic reactions. In particular, disclosed is a method of producing a solution of alkyllithium by reacting lithium metal with specific surface area of 1 to 100 cm2/g and an alkyl halide in an organic solvent medium under conditions of developed turbulence at a turbulence energy dissipation rate (ε) from 0.01 to 0.3 m2/s3, wherein molar ratio of lithium metal to alkyl halide ranges from 2.5: 1 to 5.5: 1.

EFFECT: achieving high output of alkyllithium using lithium metal with low specific surface area under conditions of developed turbulence with molar ratio of lithium metal to alkyl halide from 2.5:1 to 5.5:1, which is comparable with output of alkyllithium when using fine particles of lithium metal (with large specific surface area).

9 cl, 18 ex

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RU 2 825 388 C2

Authors

Lipskikh Maksim Vladimirovich

Babin Ivan Nikolaevich

Kulchakovskii Petr Ivanovich

Dates

2024-08-26Published

2022-11-16Filed