Results 21 to 30 of about 7,968 (196)

Ueber Diamido‐guanidin [PDF]

open access: yesBerichte der deutschen chemischen Gesellschaft, 1905
n ...
Pellizzari, G., Cantoni, C.
openaire   +3 more sources

Mechanochemical synthesis of thioureas, ureas and guanidines

open access: yesBeilstein Journal of Organic Chemistry, 2017
In this review, the recent progress in the synthesis of ureas, thioureas and guanidines by solid-state mechanochemical ball milling is highlighted. While the literature is abundant on their preparation in conventional solution environment, it was not ...
Vjekoslav Štrukil
doaj   +1 more source

Autocatalytic and oscillatory reaction networks that form guanidines and products of their cyclization

open access: yesNature Communications, 2021
So far, only a few chemical oscillators based on organic reactions have been developed. Here, the authors report both autocatalytic and oscillatory reaction networks that form substituted guanidines from thiouronium salts; when coupled to cascade ...
Alexander I. Novichkov   +5 more
doaj   +1 more source

Supramolecular Thermo Aero-able Gelators (STAGs) for synthesis of hydrogels [PDF]

open access: yesNew J. Chem. 2012, 36, 2541, 2012
Supramolecular Thermo Aero-able Gelators (STAGs): tartaric acid, urea, and guanidine with amide and imine moieties as supramolecular synthons are introduced to cross-link and aerate ('aero-able') polyacrylate networks for synthesis of hydrogels. They are bi-functional hence present a greener alternative to the existing cross-linkers and gelators.
arxiv   +1 more source

Synthetic and theoretical studies of novel ring closure and ring opening reactions [PDF]

open access: yes, 2006
Ring closure and ring opening reactions are in many cases useful synthetic procedures in organic chemistry. They allow the preparation of complex molecules with high stereoselectivity and good yields. Mechanistic and theoretical studies have been carried
González Rosende, Mª Eugenia   +1 more
core   +1 more source

Novel Guanidine Compound against Multidrug-Resistant Cystic Fibrosis-Associated Bacterial Species

open access: yesMolecules, 2018
Chronic pulmonary infection is a hallmark of lung disease in cystic fibrosis (CF). Infections dominated by non-fermentative Gram-negative bacilli are particularly difficult to treat and highlight an urgent need for the development of new class of agents ...
Aamer Saeed   +5 more
doaj   +1 more source

“ Thioureidopeptide”: Novel Synthon for the Synthesis of N, N′, N″-Trisubstituted Guanidinopeptide Mimics [PDF]

open access: yes, 2016
The synthesis of N α-protected N,N′,N″-trisubstituted guanidinopeptide mimic molecules suitably decorated in peptide backbone has been delineated in one pot employing HgCl2 as a desulphurizing agent.
Girish Prabhu, .   +4 more
core   +1 more source

Investigation of the Phytochemical Composition, Antioxidant Activity, and Methylglyoxal Trapping Effect of Galega officinalis L. Herb In Vitro

open access: yesMolecules, 2020
Galega officinalis L. has been known for centuries as an herbal medicine used to alleviate the symptoms of diabetes, but its comprehensive chemical composition and pharmacological activity are still insufficiently known.
Katarzyna Bednarska   +2 more
doaj   +1 more source

Structural and mechanistic insights into s-block bimetallic catalysis : sodium magnesiate-catalyzed guanylation of amines [PDF]

open access: yes, 2016
To advance the catalytic applications of s-block mixed-metal complexes, sodium magnesiate [NaMg(CH2SiMe3)3] (1) is reported as an efficient precatalyst for the guanylation of a variety of anilines and secondary amines with carbodiimides.
Alonso-Moreno   +109 more
core   +1 more source

Transition metal-guanidine complexes as catalysts in organic reactions. Recent developments [PDF]

open access: yes, 2020
Guanidines have received great attention due to their application as superbasic proton sponges and organocatalysts, as well as excellent N-donor ligands able to coordinate with different metals.
Barbolla Cuadrado, Iratxe   +2 more
core   +1 more source

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