Examples of 'butyllithium' in a sentence
Meaning of "butyllithium"
butyllithium (noun): A chemical compound typically used in organic synthesis or industrial processes. This noun is commonly employed in scientific, chemical, or academic discussions
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- Any of three isomeric organolithium reagents used in chemical synthesis.
How to use "butyllithium" in a sentence
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butyllithium
Butyllithium in hexane is added dropwise with a syringe.
The dianion forms by reaction with butyllithium.
Butyllithium may be replaced as described earlier.
The presently most preferred organolithium is butyllithium.
Treatment of the arylbromide with butyllithium produced an aryllithium.
Butyllithium should be added dropwise in hexane.
A preferred example of a strong base is butyllithium.
Sodium hydride or butyllithium is preferable.
The impurities in the system were titrated by stepwise addition of butyllithium.
The weight and volume of the butyllithium are recorded.
For the ethinylation lithiumacetylide was prepared from dibromoethene and butyllithium.
Alkyllithium derivatives are preferred and butyllithium is especially preferred.
Secondary butyllithium is a most preferred initiator for use in the present invention.
Release of free butane during addition of butyllithium was seen.
Reaction of diphosphine with butyllithium affords a variety of condensed polyphosphine compounds.
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It is lithiated with butyllithium.
Reaction of diphosphane with butyllithium affords a variety of condensed polyphosphine compounds.
Pyrrole can be deprotonated with strong bases such as butyllithium and sodium hydride.
It is advantageous to use butyllithium both as strong base and as lithiating agent.
The strong base in the presence of which the reaction is effected is preferably butyllithium.
The effect of the type of butyllithium on the polymerization system was studied.
The combined filtrate and washes were further treated with butyllithium as described below.
Potassium carbonate, butyllithium and sodium hydrogencarbonate are preferred.
Mol of secondary butyllithium.
Butyllithium can be replaced with methyllithium, sodium hydride or potassium hydride.
Preferred is butyllithium.
The alkyllithium, which is advantageously branched, is preferably tertiary butyllithium.
It is kinetically more reactive than butyllithium and is often used to accomplish difficult metalations.
The product thus obtained showed identical characteristics to this obtained above in butyllithium method.
With stirring, butyllithium in hexane is added.
An Example of a suitable base is butyllithium.
Although butyllithium is colorless, n-butyllithium is usually encountered as a pale yellow solution in alkanes.
Strong lithium bases are preferred, in particular butyllithium.
After a few minutes, the excess butyllithium is destroyed by water.
Strong lithiated bases are preferred, especially butyllithium.
Preferred organo-alkali metal bases are butyllithium and lithium diisopropylamide.
The lithiating agent is typically an alkyllithium, for instance butyllithium.
Butyllithium was introduced into the reactor during the chromium-containing catalyst polymerization.
Ml of butadiene ; and mol of secondary butyllithium.
Also of commercial importance is the use of butyllithium for the production of styrene-butadiene polymers.
Preferred are lithium alkyls such as methyllithium, ethyllithium and butyllithium.
The butyllithium solution was slowly added to the cold THF solution over 1 h.
Suitable bases include sodium hydride, butyllithium or an alkoxide.
The butyllithium solution was slowly added to the cold THF solution over 1 hour.
Of these, organolithium compounds are preferred, and butyllithium is particularly preferred.
This last method offers the advantage of using a single commercial reagent, tertiary butyllithium.
Schlosser 's base is a superbase produced by treating butyllithium with potassium tert-butoxide.
Compound 19 For the ethinylation lithiumacetylide was prepared from dibromoethene and butyllithium.
Of these, the alkyllithium compounds and notably the butyllithium are particularly preferred.
The addition of butyllithium was completed in approximately 45 min.
