Examples of 'n-bromosuccinimide' in a sentence
Meaning of "n-bromosuccinimide"
N-bromosuccinimide (noun): N-bromosuccinimide is a chemical reagent commonly used in organic chemistry for various reactions including substitution and oxidation reactions
How to use "n-bromosuccinimide" in a sentence
Basic
Advanced
n-bromosuccinimide
N-bromosuccinimide deprotection of the dithiane followed by acid-catalyzed cyclization can provide the furan.
This is removed upon treatment with N-bromosuccinimide.
Preferred conditions are the use of N-bromosuccinimide in dimethylformamide at room temperature for 1 h.
Suitable initiators include iron metal and N-bromosuccinimide.
Preferably the bromination with N-bromosuccinimide is carried out at room temperature.
Examples of brominating agents include bromine and N-bromosuccinimide.
N-Bromosuccinimide oxidation of two to three tryptophan residues per molecule entails rapid inactivation.
Preferably the halogenating agent is N-bromosuccinimide or bromine.
Of N-bromosuccinimide is added and the reaction mixture is agitated for 3 hours at ambient temperature.
Addition of hexyl magnesium bromide was followed by trapping by N-bromosuccinimide.
G of N-bromosuccinimide is added and the reaction medium is taken to reflux again for 2 hours.
Cyanamide adds itself in the presence of N-bromosuccinimide to olefinic double bonds.
This reaction is conducted with any of a variety of halogenating agents preferably N-bromosuccinimide.
Illustrative of the brominating agent are bromine, N-bromosuccinimide and pyridiniumbromide perbromide.
However, both of these methods have to employ expensive bromination agents such as N-bromosuccinimide.
See also
Additional amounts of N-bromosuccinimide and hydrobromic acid were added to drive the reaction to completion.
Preferred halogenating agents include imides, and N-bromosuccinimide is more preferred.
Bromine e N-bromosuccinimide are particularly preferred.
In one example, halogenation is affected with N-bromosuccinimide to produce the bromide.
Compounds ArSCH2Br are made by oxidation with sulfuryl bromide or other reagents such as N-bromosuccinimide.
However, this method uses expensive N-bromosuccinimide as a brominating agent and is industrially disadvantageous.
Preferable examples of the halogenating agent used include N-bromosuccinimide and bromine.
For brominations, N-bromosuccinimide or bromine is used.
Brominating agents such as bromine, pyridinium bromide perbromide and N-bromosuccinimide may be employed.
They are regioselectively brominated with N-bromosuccinimide with formation of bromides of the general formula XXX.
Bromination of XXVII is achieved upon treatment with a bromine source, such as N-bromosuccinimide and light.
However, this reaction requires N-bromosuccinimide as brominating reagent.
The process of Claim 4 wherein said brominating is accomplished by using N-bromosuccinimide.
The recovered starting material was again treated with N-bromosuccinimide and the crude product chromatographed.
Chloromethyl ketones can similarly be prepared by employing N-chlorosuccinimide in place of N-bromosuccinimide.
Of these, the use of N-bromosuccinimide is preferred.
Carbon tetrachloride Reaction solvent, except reactions involving N-bromosuccinimide see below.
Reaction of a toluene derivative N-bromosuccinimide in the presence of a radical initiator, e . g.
This example illustrates the one-step conversion of zeaxanthin to astaxanthin using N-bromosuccinimide and sodium chlorate.
Also N-bromosuccinimide ( tryptophan oxidant ) led to a total inhibition of the enzyme.
In a more preferred embodiment, the halogenating agent is N-bromosuccinimide or pyridinium tribromide.
Simple oxidants such as N-bromosuccinimide will selectively oxidize indole 1 to oxindole 4 and 5.
Bromination at the methyl position was performed using N-bromosuccinimide in carbon tetrachloride.
The N-bromosuccinimide solution is added to the vigorously stirred zeaxanthin solution over a period of 4-6 hours.
The preferred brominating reagent is N-bromosuccinimide.
When using N-bromosuccinimide or N-iodosuccinimide, a separate proton acceptor is not required.
The preferred halogenating agent was N-bromosuccinimide.
The N-bromosuccinimide is added spatulawise over 30 minutes.
Suitable brominating agents include N-bromosuccinimide.
The N-bromosuccinimide is added in 30 minutes using a spatula.
A preferred bromination agent is N-bromosuccinimide.
The N-bromosuccinimide is added over 30 minutes using a spatula.
Scheme 7 A illustrates method of bromination of compound xxxvii using N-bromosuccinimide.
Bromination as previously described herein with N-bromosuccinimide and dibenzoylperoxide affords compound ( 92 ).
The process of claim 1 wherein the halohydroxylating agent is N-bromosuccinimide.
