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Organolithium reagents titration

Butyllithium was purchased from Aldrich Chemical Company, Inc., and titrated with N-benzylidenebenzylamine as indicator according to an established procedure.3 The use of the highly concentrated organolithium reagent is essential because the use of more dilute solutions of butyllithium in hexanes results in precipitation of the lithium acetylide and theretore less efficient coupling with tert-butyldimethylsilyl chloride. [Pg.182]

A useful new method for the titration of organolithium reagents (RLi) has been reported in which N-benzylidenebenzylamine is metallated with RLi to give the crimson-coloured species (1). Back titration is accomplished with PhCOaH, and is characterized by a sharp end-point co-incident with the disappearance of (1), ... [Pg.214]

Indicator for the titration of organolithium cpds. and Grignard reagents. Cryst. (toluene/MeOH). Mp 214-219°, Mp 221-222°. [Pg.819]

See other pages where Organolithium reagents titration is mentioned: [Pg.108]    [Pg.118]    [Pg.12]    [Pg.32]    [Pg.34]    [Pg.11]    [Pg.13]    [Pg.611]    [Pg.12]    [Pg.55]    [Pg.337]    [Pg.288]    [Pg.444]    [Pg.157]    [Pg.444]    [Pg.101]    [Pg.27]    [Pg.69]   
See also in sourсe #XX -- [ Pg.13 ]

See also in sourсe #XX -- [ Pg.13 ]



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