Results 1 to 10 of about 56,210 (306)
Fully Bio-Based Thermosetting Polyurethanes from Bio-Based Polyols and Isocyanates
Polymers, 2021 The trend towards the utilization of bioresources for the manufacturing of polymers has led industry players to bring to the market new monomers. In this work, we studied 3 polyisocyanates and 2 polyols with high renewable carbon contents, namely L ...
Roberto Morales-Cerrada +2 more
exaly +2 more sources
Molecules, 2019 Nanocellulose has been subjected to a wide range of chemical modifications towards increasing its potential in certain fields of interest. These modifications either modulated the chemistry of the nanocellulose itself or introduced certain functional ...
Hatem Abushammala, Jia Mao
doaj +2 more sources
Iron(II) catalyzed hydrophosphination of isocyanates [PDF]
Angewandte Chemie, 2017 The first transition metal catalyzed hydrophosphination of isocyanates is presented. The use of low-coordinate iron(II) precatalysts leads to an unprecedented catalytic double insertion of isocyanates into the P-H bond of diphenylphosphine to yield ...
Blake, Alexander J. +4 more
core +4 more sources
Alkyl Bromides as Mild Hydride Sources in Ni-Catalyzed Hydroamidation of Alkynes with Isocyanates
Journal of the American Chemical Society, 2016 A catalytic hydroamidation of alkynes with isocyanates using alkyl bromides as hydride sources has been developed. The method turns parasitic β-hydride elimination into a strategic advantage, rapidly affording acrylamides with excellent chemo- and ...
Xue-Qiang Wang, Eloisa Serrano
exaly +2 more sources
Toward Circular Recycling of Polyurethanes: Depolymerization and Recovery of Isocyanates
Jacs AuWe report a depolymerization strategy to nearly quantitatively regenerate isocyanates from thermoplastic and thermoset polyurethanes (PUs) and then resynthesize PUs using the recovered isocyanates.
LaShanda Korley, Thomas H Epps Iii
exaly +2 more sources
ACS Catalysis, 2016 The first decarbonylative cycloaddition of less-strained cyclic ketones (isatins) with isocyanates is reported. Initiated by C-C activation, this distinct [5-2+2] transformation provides a rapid entry to access various benzimidazolidinone derivatives ...
Rong Zeng, Guangbin Dong
exaly +2 more sources
Polymer Chemistry, 2016 In this review we aim to provide an introductory guide to blocked isocyanates, through discussion on different examples of blocking groups, along with experimental considerations for their application.
Marianne S. Rolph +3 more
exaly +2 more sources
First detection of C2H5NCO in the ISM and search of other isocyanates towards the G+0.693-0.027 molecular cloud [PDF]
Astronomy & Astrophysics, 2021 Context. Little is known about the chemistry of isocyanates (compounds with the functional group R-N=C=O) in the interstellar medium (ISM), as only four of them have been detected so far: isocyanate radical (NCO), isocyanic acid (HNCO), N-protonated ...
L. Rodríguez-Almeida +11 more
semanticscholar +1 more source
Nucleophilic Isocyanation [PDF]
ACS Omega, 2020 Isonitriles are frequently employed as both substrates for organic transformations and ligands for organometallic chemistry. However, despite the wide application of the isonitriles, their synthesis generally depends on the traditional dehydration of N-formamide.
Taiga Yurino, Takeshi Ohkuma
openaire +3 more sources
Pharmaceutics, 2023 A novel series of benzimidazole ureas 3a–h were elaborated using 2-(1H-benzoimidazol-2-yl) aniline 1 and the appropriate isocyanates 2a–h. The antioxidant and possible antidiabetic activities of the target benzimidazole-ureas 3a–h were evaluated.
Lotfi M. Aroua +8 more
doaj +1 more source