Patent
Preparation of hydrocarbon solvent solutions of organolithium compounds
TLDR
In this paper, a method of preparing hydrocarbon solvent solutions of organolithium compounds is presented, in which solutions such as benzene or heptane solutions of di-and poly-lithio adducts of polyisoprenes or polybutadienes containing strongly solvating ethers such as dimethyl ether or tetrahydrofuran are treated with weakly solving anisole, or weakly Solvating tertiary amines such as triethylamine, to effect displacement from said solutions of the dimethyl or tetrahedAbstract:
Method of preparing hydrocarbon solvent solutions of organolithium compounds in which solutions such as benzene or heptane solutions of di- and poly-lithio adducts of polyisoprenes or polybutadienes containing strongly solvating ethers such as dimethyl ether or tetrahydrofuran are treated with weakly solvating ethers such as anisole, or weakly solvating tertiary amines such as triethylamine, to effect displacement from said solutions of the dimethyl ether or tetrahydrofuran. The resulting solutions are useful as catalysts in the production of conjugated polyene hydrocarbon polymers or copolymers thereof with vinyl-substituted aromatic hydrocarbons, having high cis-1,4 contents, as well as vinyl-substituted aromatic hydrocarbon polymers.read more
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