Methyll ithium: Lithium, methyl

TERT-BUTYL-TERT-OCTYLAMINE 2-PENTANAMINE, N-(l, 1-DIMETHYLETHYL)-2, 4, 4-TRIMETHYL- (90545-94-1), 65, 166 Butyll ithium Lithium, butyl- (109-72-8), 65, 98, 108, 119 2-BUTYNOIC ACID, 4-CHL0R0-, METHYL ESTER, 65, 47... 

A solution of methyl ithium in ether is prepared from lithium wire and methyl bromide according to the literature procedure, and titrated by the same method as Note 6. The checkers used 1.1 M methyl ithium from Aldrich. 

In two cases submitters have observed that the residue separated into two layers. The upper layer consists of a heavy oil apparently because of incomplete washing of the lithium suspension used in manufacturing methyl 1 ithium. When this happens it is necessary to remove the oil with a pipette prior to distillation. Failure to do so gives a product which appears pure by TLC, but which is substantially impure according to elemental analysis (IX high in carbon). ... 

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