Synthesis 2021; 53(09): 1672-1682
DOI: 10.1055/a-1334-6916
paper

Synthesis of Amidation Agents and Their Reactivity in Condensation Reactions

Roberto Sole
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
,
Lodovico Agostinis
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
,
Silvia Conca
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
,
Vanessa Gatto
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
b   Crossing s.r.l., Viale della Repubblica 193/B, 31100, Treviso, Italy
,
Noemi Bardella
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
,
Andrea Morandini
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
,
Chiara Buranello
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
,
Valentina Beghetto
a   Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca’ Foscari Venezia, Via Torino 155, 30172, Venezia, Italy
b   Crossing s.r.l., Viale della Repubblica 193/B, 31100, Treviso, Italy
› Author Affiliations


Abstract

Nowadays, the development of new approaches which smartly bypass the use of harsh reaction conditions and hazardous chemicals covers a pivotal role. In this research paper the synthesis, characterization, and application of novel libraries of triazine bis-quaternary ammonium salts, employed as coupling agents to produce amides is reported. Full characterization of the novel compounds by 1H and 13C NMR, FT-IR spectroscopy, ESI-HRMS, and elemental analysis is provided. Furthermore, a comparison in terms of activity of the preformed triazine compounds versus in situ formulations has been evaluated for the formation of amides in the presence of phenylethylamine and different aliphatic or aromatic acids. A possible correlation between the chemical structure of the triazine and their reactivity for the formation of the triazine bis-quaternary ammonium salts is also reported. Moreover, best performing condensation agents have been further tested for the cross-linking of collagen powder as possible wet white tanning systems, for sustainable and environmentally friendly leather tanning.

Supporting Information



Publication History

Received: 08 November 2020

Accepted after revision: 10 December 2020

Accepted Manuscript online:
10 December 2020

Article published online:
18 January 2021

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