Results 11 to 20 of about 10,230 (219)

Capture of organic iodides from nuclear waste by metal-organic framework-based molecular traps

open access: yesNature Communications, 2017
Capturing radioactive organic iodides from nuclear waste is important for safe nuclear energy usage, but remains a significant challenge. Here, Li and co-workers fabricate a stable metal–organic framework functionalized with tertiary amine groups that ...
Baiyan Li   +13 more
doaj   +1 more source

Development and validation of the quantitative determination procedure of iodine in the iodides form in the kelp thallus by the ionometry method

open access: yesJournal of Pharmacy and Bioallied Sciences, 2020
Introduction: Iodine is an important compound in the kelp thallus; it should be determined to control the quality of crude herbal drugs of Laminaria sp.
Alexander V Nikulin   +5 more
doaj   +1 more source

Cu(I)- and Pd(0)-Catalyzed Arylation of Oxadiamines with Fluorinated Halogenobenzenes: Comparison of Efficiency

open access: yesMolecules, 2020
The comparison of the possibilities of Pd- and Cu-catalyzed amination reactions using fluorine-containing aryl bromides and iodides with oxadiamines to produce their N,N′-diaryl derivatives was carried out.
Maria S. Lyakhovich   +5 more
doaj   +1 more source

Nickel-catalyzed carbonylative synthesis of dihydrobenzofurans

open access: yesCatalysis Communications, 2021
A nickel-catalyzed carbonylative synthesis of dihydrobenzofurans has been developed. With Mo(CO)6 as the CO source and manganese metal as the reductant, alkyl halides were reacted with aryl iodides to give the desired products in moderate to good yields.
Hui-Qing Geng, Wei Wang, Xiao-Feng Wu
doaj   +1 more source

Transition-metal free C–N bond formation from alkyl iodides and diazonium salts via halogen-atom transfer

open access: yesNature Communications, 2022
The pursuit of efficient C–N bond formation is a prime focus of synthetic organic chemistry. Here, the authors documented a base promoted amination between alkyl iodides and diazonium salts via halogen-atom transfer (XAT) process.
Jing Zhang   +11 more
doaj   +1 more source

SYNTHESIS OF SOME NEW IMIDAZOLIUM AND PURINIUM SALTS AND THEIR RELATED DERIVATIVES

open access: yesZagazig Journal of Pharmaceutical Sciences, 1997
Cyclization of 5-amino-1-(4-methoxyphenyl) imidazole-4-carbonitrile 3 with formamide afforded 6-aminopurine derivative 4. When the latter was reacted with alkyl iodides, the purinium iodide salts 7a-c were obtained.
Wahid Basyouni
doaj   +1 more source

Fungicidal and bactericidal activity of alkyl-substituting polyetherguanidines

open access: yesБіологічні студії, 2020
Background. Polyhexamethylene guanidines are widely used as biocides and disinfectants due to the wide range of their antimicrobial activity against Gram-positive and Gram-negative bacteria, viruses, fungi, and molds.
M. Ya. Vortman   +5 more
doaj   +1 more source

Synthesis of chiral cyclohexanes and carbasugars by 6-exo-dig radical cyclisation reactions

open access: yesBeilstein Journal of Organic Chemistry, 2008
Treatment of 5-(tert-butyldimethylsilyl)-2,3-O-isopropylidene-D-ribose with lithium acetylides gave mixtures of syn- and anti-alkynols 2a–2c which were separated following protection as methoxymethyl ethers.
Rajeev K. Shrivastava   +4 more
doaj   +1 more source

Synthesis of substituted Z-styrenes by Hiyama-type coupling of oxasilacycloalkenes: application to the synthesis of a 1-benzoxocane

open access: yesBeilstein Journal of Organic Chemistry, 2017
Several Hiyama cross-coupling reactions of oxasilacycloalkenes and aryl iodides are described that produce trisubstituted Z-styrenes in moderate to excellent yields.
James R. Vyvyan   +5 more
doaj   +1 more source

Crystal structure and Hirshfeld surface analysis of chiral catena-poly[l-histidinediium [[diiodidocuprate(I)]-μ-iodido] monohydrate]

open access: yesActa Crystallographica Section E: Crystallographic Communications
The title compound, {(C6H11N3O2)[CuI3]·H2O}n or (L-HisH2)CuI3·H2O (1), is a chiral organic–inorganic compound that crystallizes in the monoclinic P21 space group.
Valerii Y. Sirenko   +4 more
doaj   +1 more source

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