The use of p-sulfonic acid calix[4]arene as organocatalyst for pretreatment of sugarcane bagasse increased the production of levoglucosan
Sign Up to like & getrecommendations! Published in 2019 at "Industrial Crops and Products"
DOI: 10.1016/j.indcrop.2019.02.034
Abstract: Abstract This paper presents a novel method for the production of a biomass-derived chemical platform, levoglucosan (LGA), from sugarcane bagasse via pretreatment with an organocatalyst (CX4SO3H) and fast pyrolysis. The effectiveness of this platform for… read more here.
Keywords: production; sugarcane bagasse; biomass; organocatalyst ... See more keywords
Preparation of poly(thiourethane) thermosets by controlled thiol-isocyanate click reaction using a latent organocatalyst
Sign Up to like & getrecommendations! Published in 2019 at "Reactive and Functional Polymers"
DOI: 10.1016/j.reactfunctpolym.2018.11.019
Abstract: Abstracts Different poly(thiourethane) thermosets were prepared by means of a thiol-isocyanate click reaction starting from three diisocyanates with different structure (isophorone diisocyanate, IPDI, 4,4′-methylene bis(cyclohexy isocyanate), HMDI and hexamethylene diisocyanate, HDI, and a tetrathiol, pentaerythritol… read more here.
Keywords: click reaction; organocatalyst; isocyanate click; thiourethane thermosets ... See more keywords
Stereoretention in the Bulk ROP of l-Lactide Guided by a Thermally Stable Organocatalyst
Sign Up to like & getrecommendations! Published in 2021 at "Macromolecules"
DOI: 10.1021/acs.macromol.1c01060
Abstract: Polylactide (PLA) has emerged as one of the most promising bio-based alternatives to petroleum-based plastics, mainly because it can be produced from the fermentation of naturally occurring sugars and because it can be industrially compostable.… read more here.
Keywords: stereoretention bulk; rop; rop lactide; organocatalyst ... See more keywords
Cinchona-Diaminomethylenemalononitrile Organocatalyst for the Highly Enantioselective Hydrophosphonylation of Ketones and Enones.
Sign Up to like & getrecommendations! Published in 2018 at "Organic letters"
DOI: 10.1021/acs.orglett.8b02241
Abstract: The use of diaminomethylenemalononitrile (DMM) organocatalyst to promote the challenging 1,2-hydrophosphonylation of simple ketones and enones, which are also called α,β-unsaturated ketones, is proposed and validated. This reaction provided the corresponding chiral α-hydroxy phosphonates in… read more here.
Keywords: organocatalyst highly; ketones enones; diaminomethylenemalononitrile organocatalyst; organocatalyst ... See more keywords
Two-Component Redox Organocatalyst for Peptide Bond Formation.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.1c12798
Abstract: Peptides are fundamental therapeutic modalities whose sequence-specific synthesis can be automated. Yet, modern peptide synthesis remains atom uneconomical and requires an excess of coupling agents and protected amino acids for efficient amide bond formation. We… read more here.
Keywords: bond formation; bond; synthesis; organocatalyst ... See more keywords
Benzoic acid resin (BAR): a heterogeneous redox organocatalyst for continuous flow synthesis of benzoquinones from β-O-4 lignin models
Sign Up to like & getrecommendations! Published in 2021 at "Green Chemistry"
DOI: 10.1039/d0gc04231e
Abstract: A polymer-bound organocatalyst for Baeyer–Villiger reaction and phenol oxidation under continuous flow conditions is described for the first time. BAR has revealed two catalytic activities that enabled the generation of a novel approach for the… read more here.
Keywords: bar; benzoquinones lignin; continuous flow; lignin models ... See more keywords
Sulfamic acid grafted to cross-linked chitosan by dendritic units: a bio-based, highly efficient and heterogeneous organocatalyst for green synthesis of 2,3-dihydroquinazoline derivatives
Sign Up to like & getrecommendations! Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra07319f
Abstract: In this work, novel cross-linked chitosan by the G1 dendrimer from condensation of melamine and toluene-2,4-diisocyante terminated by sulfamic acid groups (CS-TDI-Me-TDI-NHSO3H), as a bio-based and heterogeneous acidic organocatalyst, was designed and prepared. Also, the… read more here.
Keywords: cross linked; linked chitosan; organocatalyst; spectroscopy ... See more keywords
Pyrrolidine-oxadiazolone conjugate as new organocatalyst for asymmetric aldol condensation
Sign Up to like & getrecommendations! Published in 2023 at "Synthetic Communications"
DOI: 10.1080/00397911.2023.2205593
Abstract: Abstract A proline-based, chiral bi-functional organocatalyst containing both pyrrolidine and oxadiazolone heterocycle, has been successfully applied for stereoselective aldol reactions. The replacement of polar -COOH group of proline with bioisostere oxadiazolone ring provides excellent solubility… read more here.
Keywords: pyrrolidine oxadiazolone; condensation; oxadiazolone conjugate; organocatalyst ... See more keywords