Recent advances in the synthesis and reactivity of azetidines: strain-driven character of the four-membered heterocycle

H Mughal, M Szostak - Organic & Biomolecular Chemistry, 2021 - pubs.rsc.org
Azetidines represent one of the most important four-membered heterocycles used in organic
synthesis and medicinal chemistry. The reactivity of azetidines is driven by a considerable …

Review of Polyethylenimine through Ring-Opening Polymerization Reactions and Its Application in CO2 Capture

AA Al-Absi, AE Ogungbenro, AM Benneker… - Journal of …, 2024 - Elsevier
Despite numerous challenges and a variety of ring-opening polymerization techniques
employed, polyethylenimine (PEI), whether in branched or linear forms with various …

Spontaneous alternating copolymerization of aziridines with tosyl isocyanate toward polyureas

H Huang, H Wei, L Huang, T Fan, X Li, Z Zhang… - European Polymer …, 2023 - Elsevier
We report a new synthetic approach toward cyclic polyureas through alternating
copolymerization of aziridines with tosyl isocyanate. Aziridines (ethyleneimine, and (S)-2 …

Polymerizations of 2-(Trimethylsilyl) ethanesulfonyl-activated aziridines

T Qu, PA Rupar - European Polymer Journal, 2022 - Elsevier
A novel N-sulfonyl aziridine, N-((2-(trimethylsilyl) ethyl) sulfonyl)-2-methyl-aziridine (SES-
MeAz) was synthesized, and its controlled anionic ring-opening polymerization to form poly …

Anionic Ring-Opening Polymerizations of N-Sulfonylaziridines in Ionic Liquids

C Giri, SE Sisk, L Reisman, I Kammakakam… - …, 2022 - ACS Publications
The anionic ring-opening polymerization (AROP) of sulfonylaziridines in ionic liquids (ILs) is
reported. In imidazolium ILs, the polymerization of 2-methyl-N-tosylaziridine (TsMAz) is not …

Ultrafast organocatalytic ring‐opening polymerization of N‐sulfonyl aziridine in the melt

R Chen, Y Wang, L Zhu, Z Zhang - Journal of Polymer Science, 2021 - Wiley Online Library
An ultrafast approach for controlled synthesis of well‐defined polysulfonamides is
established through organocatalytic anionic ring‐opening polymerization (ROP) of N …

Azetidine synthesis by La(OTf)3-catalyzed intramolecular regioselective aminolysis of cis-3,4-epoxy amines

Y Kuriyama, Y Sasano, Y Iwabuchi - Frontiers in Chemistry, 2023 - frontiersin.org
Azetidine is a prevalent structural motif found in various biologically active compounds. In
this research paper, we report La (OTf) 3-catalyzed intramolecular regioselective aminolysis …

Tetrabutylammonium fluoride initiated anionic ring-opening polymerizations of N–sulfonyl aziridines

H Wang, J Li, Z Li, B Liu, K Chen, Z Zhang, Y Hu… - European Polymer …, 2020 - Elsevier
Ionic pair tetrabutylammonium halide (TBAX) was efficient initiator in anionic ring-opening
polymerizations (AROPs) of N-sulfonyl aziridines, in which the tetrabutylammonium fluoride …

Activated Monomer Polymerization of an N-Sulfonylazetidine

L Reisman, EA Rowe, JA Jefcoat, PA Rupar - ACS Macro Letters, 2020 - ACS Publications
Previously, N-(methanesulfonyl) azetidine (MsAzet) was found to polymerize anionically via
ring-opening at temperatures> 100° C to form p (MsAzet) in the presence of an anionic …

The Anionic Polymerization of a tert-Butyl-Carboxylate-Activated Aziridine

C Giri, JY Chang, PC Mbarushimana, PA Rupar - Polymers, 2022 - mdpi.com
N-Sulfonyl-activated aziridines are known to undergo anionic-ring-opening polymerizations
(AROP) to form polysulfonyllaziridines. However, the post-polymerization deprotection of the …