Bio-based routes to synthesize cyclic carbonates and polyamines precursors of non-isocyanate polyurethanes: A review

M Ghasemlou, F Daver, EP Ivanova… - European Polymer …, 2019 - Elsevier
The synthesis of conventional polyurethanes (PUs) relies on isocyanate reactants as crucial
starting materials. Toxicity, water-sensitivity and phosgene-based synthesis of isocyanates …

Recent advances in asymmetric synthesis with CO2

CK Ran, XW Chen, YY Gui, J Liu, L Song, K Ren… - Science China …, 2020 - Springer
Carbon dioxide (CO 2) is an important and appealing C1 building block in chemical
synthesis due to its nontoxicity, abundance, availability and sustainability. Tremendous …

Cu-Catalyzed Asymmetric Dicarboxylation of 1,3-Dienes with CO2

YY Gui, XW Chen, XY Mo, JP Yue, R Yuan… - Journal of the …, 2024 - ACS Publications
Dicarboxylic acids and derivatives are important building blocks in organic synthesis,
biochemistry, and the polymer industry. Although catalytic dicarboxylation with CO2 …

Highly Selective and Catalytic Generation of Acyclic Quaternary Carbon Stereocenters via Functionalization of 1,3-Dienes with CO2

XW Chen, L Zhu, YY Gui, K Jing, YX Jiang… - Journal of the …, 2019 - ACS Publications
The catalytic asymmetric functionalization of readily available 1, 3-dienes is highly important,
but current examples are mostly limited to the construction of tertiary chiral centers. The …

Catalytic enantio-and diastereoselective domino halocyclization and spiroketalization

T Zheng, X Wang, WH Ng, YLS Tse, YY Yeung - Nature Catalysis, 2020 - nature.com
Asymmetric domino electrophilic halocyclizations are highly useful in the synthesis of
structurally complex and pharmaceutically important compounds. Although some studies …

Indirect reduction of CO 2 and recycling of polymers by manganese-catalyzed transfer hydrogenation of amides, carbamates, urea derivatives, and polyurethanes

X Liu, T Werner - Chemical Science, 2021 - pubs.rsc.org
The reduction of polar bonds, in particular carbonyl groups, is of fundamental importance in
organic chemistry and biology. Herein, we report a manganese pincer complex as a …

Transfer Hydrogenation of CO2 and CO2 Derivatives using Alcohols as Hydride Sources: Boosting an H2-Free Alternative Strategy

A Kumar, R Bhardwaj, SK Mandal, J Choudhury - ACS Catalysis, 2022 - ACS Publications
Numerous strategies have been developed for the reduction of highly challenging CO2 gas
and its conversion into useful feedstock chemicals. Among all of the developed protocols …

Valorization of lignin for renewable non-isocyanate polyurethanes: a state-of-the-art review

Y Yang, Y Wang, M Zhu, J Zhao, D Cai… - Materials Today …, 2023 - Elsevier
Due to the merits of abundant and unique structural features, the valorization of lignin, the
second largest naturally abundant polymer, for the preparation of valuable biomaterials, has …

The interpretation of small molecule diffusion coefficients: Quantitative use of diffusion-ordered NMR spectroscopy

R Evans - Progress in Nuclear Magnetic Resonance …, 2020 - Elsevier
Measuring accurate molecular self-diffusion coefficients, D, by nuclear magnetic resonance
(NMR) techniques has become routine as hardware, software and experimental …

Controlled synthesis of one-handed helical polymers carrying achiral organoiodine pendants for enantioselective synthesis of quaternary all-carbon stereogenic …

X Song, YX Li, L Zhou, N Liu, ZQ Wu - Macromolecules, 2022 - ACS Publications
Inspired by highly efficient and enantioselective reactions catalyzed by biomacromolecules,
developing artificial helical polymer-based catalysts for enantioselective reactions is an …