Related Experiment Video

Updated: May 27, 2026

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines
10:42

Preparation of N-(2-alkoxyvinyl)sulfonamides from N-tosyl-1,2,3-triazoles and Subsequent Conversion to Substituted Phthalans and Phenethylamines

Published on: January 3, 2018

N-(2-Chloro-phen-yl)-2-({5-[4-(methyl-sulfan-yl)benz-yl]-4-phenyl-4H-1,2,4-triazol-3-yl}sulfan-yl)acetamide

Hoong-Kun Fun, Chin Sing Yeap, K Manjunath

    Acta Crystallographica. Section E, Structure Reports Online
    |November 18, 2011
    PubMed

    More Related Videos

    Modification and Functionalization of the Guanidine Group by Tailor-made Precursors09:45

    Modification and Functionalization of the Guanidine Group by Tailor-made Precursors

    Published on: April 27, 2017

    Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles11:45

    Preparation of Stable Bicyclic Aziridinium Ions and Their Ring-Opening for the Synthesis of Azaheterocycles

    Published on: August 22, 2018

    Related Concept Videos

    Preparation and Reactions of Sulfides02:26

    Preparation and Reactions of Sulfides

    Sulfides are the sulfur analog of ethers, just as thiols are the sulfur analog of alcohol. Like ethers, sulfides also consist of two hydrocarbon groups bonded to the central sulfur atom. Depending upon the type of groups present, sulfides can be symmetrical or asymmetrical. Symmetrical sulfides can be prepared via an SN2 reaction between 2 equivalents of an alkyl halide and one equivalent of sodium sulfide.
    Electrophilic Aromatic Substitution: Sulfonation of Benzene01:22

    Electrophilic Aromatic Substitution: Sulfonation of Benzene

    Sulfonation of benzene is a reaction wherein benzene is treated with fuming sulfuric acid at room temperature to produce benzenesulfonic acid. Fuming sulfuric acid is a mixture of sulfur trioxide and concentrated sulfuric acid.
    Diazonium Group Substitution: –OH and –H01:19

    Diazonium Group Substitution: –OH and –H

    Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
    Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN101:14

    Nucleophilic Aromatic Substitution of Aryldiazonium Salts: Aromatic SN1

    Treating arylamines with nitrous acid gives aryldiazonium salts that are effective substrates in nucleophilic aromatic substitution reactions. The diazonio group in these salts can be easily displaced by different nucleophiles, yielding a wide variety of substituted benzenes. The leaving group departs as nitrogen gas, and this easy elimination is the driving force for the substitution reaction.
    In the Sandmeyer reaction, for example, the diazonio group is replaced by a chloro, bromo, or cyano...
    Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions01:20

    Diazonium Group Substitution with Halogens and Cyanide: Sandmeyer and Schiemann Reactions

    Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...