发明名称 IMPROVED METHOD OF PREPARATION OF LITHIUM ALKYLAMIDES
摘要 <p>A process for quickly preparing easily separable solutions of lithium alkylamides, as exemplified by the formula (I): (R3M)xNLi(R1)y.(LB)z wherein M is silicon or carbon, R and R1 are C¿1?-C8 alkyl, cycloalkyl or alkylene groups, LB is a Lewis base, x and y are integers equaling 2, and z is greater than 1, comprising the steps of reacting lithium metal in bulk form with an alkylamine in mole ratios of metal to alkylamine ranging from 2 to 1 to 10 to 1 in a solvent selected from ethereal or selected from the group consisting of conjugated dienes, vinyl aromatic and polycyclic aromatic compounds, under an inert atmosphere at elevated temperatures for 1 to 10 hours, cooling the product and separating the product solution from the unreacted lithium metal in the reactor.</p>
申请公布号 WO1995023803(A1) 申请公布日期 1995.09.08
申请号 US1995002529 申请日期 1995.03.01
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