Goldstein, Michael et al. published their research in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy in 1969 | CAS: 5339-69-5

N-Isopropylbenzenesulfonamide (cas: 5339-69-5) belongs to amides. In primary and secondary amides, the presence of N–H dipoles allows amides to function as H-bond donors as well. Thus amides can participate in hydrogen bonding with water and other protic solvents; the oxygen atom can accept hydrogen bonds from water and the N–H hydrogen atoms can donate H-bonds. Amides are not in general accessible by the direct condensation of amines with carboxylic acids for two reasons: first, both components are readily deactivated by a transfer of a proton from the acid to the amine and second, the hydroxy unit on the carbonyl of the acid is a relatively poor leaving group. Nevertheless, the formation of five- and six-membered rings is often surprisingly simple provided that other factors can be brought into play to assist in the condensation.Name: N-Isopropylbenzenesulfonamide

Infrared spectra of N-substituted sulfonamides was written by Goldstein, Michael;Russell, Maurice Alan;Willis, H. A.. And the article was included in Spectrochimica Acta, Part A: Molecular and Biomolecular Spectroscopy in 1969.Name: N-Isopropylbenzenesulfonamide This article mentions the following:

The ir spectra of 25 sulfonamides of the types MeSO2NHR (R = Me, iso-Pr, tert-Bu) MeSO2NR2 (R = Me,Et,iso-Pr), ArSO2NHR (Ar = Ph, p-tolyl; R = Me, Et, Pr, iso-Pr, Bu, iso-Bu, sec-Bu, tert-Bu), and PhSO2NR2 (R = Me, Et, iso-Pr) have been studied. Assignments are discussed for stretching and deformation vibrations of the NH and SO2 groups and for SN, CS and CN stretching modes. Some consideration is also given to vibrations of the hydrocarbon residues. In the experiment, the researchers used many compounds, for example, N-Isopropylbenzenesulfonamide (cas: 5339-69-5Name: N-Isopropylbenzenesulfonamide).

N-Isopropylbenzenesulfonamide (cas: 5339-69-5) belongs to amides. In primary and secondary amides, the presence of N–H dipoles allows amides to function as H-bond donors as well. Thus amides can participate in hydrogen bonding with water and other protic solvents; the oxygen atom can accept hydrogen bonds from water and the N–H hydrogen atoms can donate H-bonds. Amides are not in general accessible by the direct condensation of amines with carboxylic acids for two reasons: first, both components are readily deactivated by a transfer of a proton from the acid to the amine and second, the hydroxy unit on the carbonyl of the acid is a relatively poor leaving group. Nevertheless, the formation of five- and six-membered rings is often surprisingly simple provided that other factors can be brought into play to assist in the condensation.Name: N-Isopropylbenzenesulfonamide

Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics