High purity formulations of highly substituted lithium amide bas

Organic compounds -- part of the class 532-570 series – Organic compounds – Unsubstituted hydrocarbyl chain between the ring and the -c-...

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25218212, 546184, 548400, 556401, 556410, 556412, 564 2, 564391, 564392, 564462, 564463, C07F 102

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057263086

ABSTRACT:
A process for preparing high purity solutions of highly substituted lithium amide bases by direct reaction of lithium metal with highly substituted amine bases alone or in an ether solvent, a hydrocarbon solvent or in a mixed ether/hydrocarbon solvent mixture, optionally in the presence of a catalyst selected from tin salts and transition metal salts of Groups 4B, 5B, 6B, 7B, and 8 of the Periodic Table.

REFERENCES:
patent: 4595779 (1986-06-01), Morrison et al.
patent: 5002689 (1991-03-01), Metha et al.
patent: 5149457 (1992-09-01), Smith
patent: 5420322 (1995-05-01), Chiu et al.

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