Phase-transfer-catalyzed N-alkylation of carboxamides and sulfonamides was written by Gajda, Tadeusz;Zwierzak, Andrzej. And the article was included in Synthesis in 1981.Application of 5339-69-5 This article mentions the following:
The conversion of PhCONH2 to PhCONHR and PhCONR2 (R = Et, Pr, Bu, Me2CHCH2, PhCH2, Me2CH) was catalyzed by Bu4N+ HSO4– (I). A mixture of PhCONH2, EtBr, NaOH, and I in C6H6 was refluxed to give PhCONHEt. Similarly prepared were EtCONHR1 (R1 = Et, Pr, Bu), PhSO2N(R2)2 (R2 = Me, Et, Bu, PhCH2, Me2CH), and MeSO2N(R3)2 (R3 = Et, PhCH2, Me2CH). In the experiment, the researchers used many compounds, for example, N-Isopropylbenzenesulfonamide (cas: 5339-69-5Application of 5339-69-5).
N-Isopropylbenzenesulfonamide (cas: 5339-69-5) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. The presence of the amide group –C(=O)N– is generally easily established, at least in small molecules. It can be distinguished from nitro and cyano groups in IR spectra. Amides exhibit a moderately intense νCO band near 1650 cm−1. By 1H NMR spectroscopy, CONHR signals occur at low fields. In X-ray crystallography, the C(=O)N center together with the three immediately adjacent atoms characteristically define a plane.Application of 5339-69-5
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics