Results 71 to 80 of about 10,756 (224)

Multicomponent Assembly of Proposed DNA Precursors in Water [PDF]

open access: yes, 2012
We propose a novel pathway for the prebiotic synthesis of 2′-deoxynucleotides. Consideration of the constitutional chemical relationships between glycolaldehyde and β-mercapto-acetaldehyde, and the corresponding proteinogenic amino acids, serine and ...
Powner, Matthew W.   +2 more
core   +1 more source

Sustainable Synthesis of P‐Doped Carbon Nitride From Fertilizer Sources for Enhanced Photocatalysis

open access: yesChemPhotoChem, Volume 10, Issue 5, May 2026.
A new P‐doped carbon nitride was synthesized from the combination of thiourea and (NH4)2HPO4 by a straightforward and mild approach. The final material shows a fourfold higher specific surface area and excellent suppression of charge carrier recombination.
Luca Cartabia   +13 more
wiley   +1 more source

Thiazolidin-2-cyanamides derivatives as novel potent Escherichia coli β-glucuronidase inhibitors and their structure–inhibitory activity relationships

open access: yesJournal of Enzyme Inhibition and Medicinal Chemistry, 2020
Gut microbial β-glucuronidases have the ability to deconjugate glucuronides of some drugs, thus have been considered as an important drug target to alleviate the drug metabolites-induced gastrointestinal toxicity.
Tao-Shun Zhou   +9 more
doaj   +1 more source

Synthesis of [α‐ 14 C]‐benzylguanidine [PDF]

open access: yes, 1983
[α‐ 14 C]‐benzylguanidine ( 1 ) having a specific activity of 14 mCi/mmol was synthesized in 55% yield (isolated) by reacting [α‐ 14 C]‐benzylamine hydrochloride and cyanamide in 1‐butanol.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42 ...
Bannard   +10 more
core   +1 more source

Prebiotic Organic Chemistry of Diketopiperazines

open access: yesAsian Journal of Organic Chemistry, Volume 15, Issue 4, April 2026.
Diketopiperazines (DKPs) are considered essential in many life forms, but their prebiotic importance has not been fully understood. This review aims to discuss prebiotic organic chemistry for experimentally and computationally simulated reactions involving DKPs. ABSTRACT Even though the significance of amino acids and polypeptides is well recognized in
Jun Ohata
wiley   +1 more source

Hydrogen cyanamide, mineral and vegetable oils on budbreak and fruit production of ‘Royal Gala’ apple trees
Cianamida hidrogenada, óleos mineral e vegetal na brotação de gemas e produção de macieiras ‘Royal Gala’

open access: yesSemina: Ciências Agrárias, 2010
The aim of this work was evaluate combinations of hydrogen cyanamide, mineral oil and vegetable oil on budbreak and fruit production of ‘Royal Gala’ apple trees. During 2001/2002 and 2002/2003 growth seasons different concentrations of hydrogen cyanamide
Fernando José Hawerroth   +2 more
doaj  

Biosynthetically‐Inspired Oxidative Cleavage Platform Enables Rapid Access to Diverse and Architecturally Complex Chemotypes From Indole Alkaloids

open access: yesChemistryEurope, Volume 4, Issue 4, April 2026.
We report a biosynthesis‐inspired ring distortion approach that involves oxidative ring cleavage, ring rearrangement, and ring expansion reactions from a diverse collection of indole alkaloids and derivatives. This chemical synthesis approach led to the synthesis of >25 distinct chemotypes from 14 indole alkaloids.
Derek A. Leas   +7 more
wiley   +1 more source

Thermal Conversion of Guanylurea Dicyanamide into Graphitic Carbon Nitride via Prototype CNx Precursors [PDF]

open access: yes, 2005
Guanylurea dicyanamide, [(H2N)C(-O)NHC(NH2)2][N(CN)2], has been synthesized by ion exchange reaction in aqueous solution and structurally characterized by single-crystal X-ray diffraction (C2/c, a = 2249.0(5) pm, b = 483.9(1) pm, c = 1382.4(3) pm, β = 99.
Alves I.   +46 more
core   +1 more source

Solar‐Driven In Situ Hydrogen Peroxide Production Over Metal‐Free Carbon Nitrides for Environmental Remediation

open access: yesChemPhotoChem, Volume 10, Issue 4, April 2026.
This minireview discusses solar‐driven in situ H2O2 production using metal‐free g‐C3N4 photocatalysts for environmental remediation. It highlights reaction mechanisms, synthesis, and material engineering approaches that enhance light absorption, charge separation, and selectivity, enabling efficient pollutant degradation, biomass oxidation, and ...
Zunaira Muhammad   +3 more
wiley   +1 more source

Managing clubroot disease (caused by Plasmodiophora brassicae Wor.) by exploiting the interactions between calcium cyanamide fertilizer and soil microorganisms [PDF]

open access: yes, 2017
Calcium cyanamide is a nitrogenous fertilizer used predominantly for over a century in field and glasshouse vegetable and salad production. This review draws together for the first time knowledge concerning the biological properties of the compound that ...
Dixon, Geoffrey Richard
core   +1 more source

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