发明名称 |
DISSOLVED METHYLLITHIUM-CONTAINING COMPOSITION FOR USE IN SYNTHESIS REACTIONS |
摘要 |
This invention relates to a dissolved methyllithium-containing composition for use in synthesis reactions (synthesis composition) and to processes of preparing the composition. In the synthesis composition the methyllithium is contained in a solvent of the general formula I <IMG> wherein R1 and R2 are independently a hydrogen, methyl or ethyl residue and R3 and R4 are a methyl or ethyl residue. To prepare the methyllithium-containing synthesis composition in accordance with the invention a) lithium powder or granular lithium is dispersed in a sol vent having the general formula I and methyl halide is added at a controlled rate, b) the reaction temperature is kept in the range form 0 to 60.degree.C, and c) the resulting lithium halide is separated from the methyl lithium solution.
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申请公布号 |
CA2153459(A1) |
申请公布日期 |
1996.01.10 |
申请号 |
CA19952153459 |
申请日期 |
1995.07.07 |
申请人 |
METALLGESELLSCHAFT AKTIENGESELLSCHAFT |
发明人 |
WEISS, WILFRIED;RITTMEYER, PETER;EMMEL, UTE |
分类号 |
C07F1/02;(IPC1-7):C07F1/02 |
主分类号 |
C07F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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