Results 61 to 70 of about 17,497 (179)

Dimethylamine as the key intermediate generated in situ from dimethylformamide (DMF) for the synthesis of thioamides

open access: yesBeilstein Journal of Organic Chemistry, 2015
An improved and efficient method for the synthesis of thioamides is presented. For this transformation, dimethylamine as the key intermediate is generated in situ from dimethylformamide (DMF).
Weibing Liu, Cui Chen, Hailing Liu
doaj   +1 more source

Efficient One‐Pot Synthesis of Benzothiazole Compounds From Vinamidinium Salts

open access: yesChemistryOpen, EarlyView.
A catalyst‐free one‐pot reaction of vinamidinium salts with benzothiazole hydrazines efficiently produces 1,3‐bis((3‐methylbenzo[d]thiazol‐2(3H)‐ylidene)hydrazineylidene)propan‐2‐ol (BBTA) and 1‐((1Z,3E)‐1‐(dimethylamino)‐3‐(((Z)‐3‐methylbenzo[d]thiazol‐2(3H)‐ylidene)hydrazineylidene)prop‐1‐en‐2‐yl)pyridin‐1‐ium (DMBT) derivatives.This simple method ...
Zeinab khosravi   +4 more
wiley   +1 more source

A novel n‐type dimer dopant for semiconducting polymers

open access: yesPolymer International, EarlyView.
A novel molecular n‐type dopant (1) with superior capacity to dope conjugated polymers is introduced. After charge transfer the product (2) remains in the polymer. Abstract Efficient and stable doping of organic semiconductors is crucial for adjusting their electrical properties.
Andreas Opitz   +4 more
wiley   +1 more source

3-Hydroxy-3-[(2-methylpropanoyl)methyl]indolin-2-one

open access: yesActa Crystallographica Section E, 2009
The title compound, C13H15NO3, was synthesized by the Aldol reaction of isatin and 3-methylbutan-2-one refluxing in methanol catalyzed by dimethylamine. The packing of the molecules in the crystal structure features intermolecular N—H...O and O&
Gang Chen   +3 more
doaj   +1 more source

Enhanced Degradation of Vinyl Copolymers Based on Lipoic Acid

open access: yesJournal of Polymer Science, Volume 63, Issue 6, Page 1345-1351, 15 March 2025.
ABSTRACT The introduction of degradable units into the backbone of commodity vinyl polymers represents a major opportunity to address the societal challenge of plastic waste and polymer recycling. Previously, we reported the facile copolymerization of α‐lipoic acid derivatives containing 1,2‐dithiolane rings with vinyl monomers leading to the ...
Yoichi Okayama   +7 more
wiley   +1 more source

Removal of 2-naphthalenesulfonic acid using novel dual functional weakly basic anion exchange resins from aqueous solution

open access: yesAdsorption Science & Technology, 2019
Two novel weakly basic anion exchange resins BNH and BN2 bearing two different functional groups was fabricated via the two-step amination of chloromethylated polystyrene-divinylbenzene beads with dibutylamine and dimethylamine. The adsorption properties
Yue Sun, Weisheng Zheng, Deqiang Yin
doaj   +1 more source

(E)-3-[(Dimethylamino)methylidene]-4-phenyl-1H-1,5-benzodiazepin-2(3H)-one

open access: yesActa Crystallographica Section E, 2014
The asymmetric unit of the title compound, C18H17N3O, consists of two independent molecules, each having an E conformation with respect to the C=C bond between the benzodiazepinone and dimethylamine groups.
Mohamed Loughzail   +4 more
doaj   +1 more source

A Review of Metal–Organic Framework (MOF) Based Active Food Packaging: Materials Selection, Cellulose Matrices Current Advances, Synthesis and Characterizations

open access: yesPackaging Technology and Science, EarlyView.
Active packaging offers an effective approach to extending food shelf life. This review summarizes the past decade of progress in metal‐organic framework (MOF)‐based active food packaging, highlighting material selection, characterization, challenges, and future prospects.
Belladini Lovely   +4 more
wiley   +1 more source

Microphysical chemistry of fog–aerosol interactions over the northwest Atlantic Ocean during Fatima 2022

open access: yesQuarterly Journal of the Royal Meteorological Society, EarlyView.
Fifteen size‐resolved aerosol samples collected during marine fog, with adjacent ambient observations, show that coarse sea salt aerosol is rapidly grown and lost in the northwest North Atlantic Ocean except when subject to extreme winds. The persistence of fog in the absence of sea salt is determined by available fine‐mode aerosol, where greater ...
Leyla Salehpoor   +10 more
wiley   +1 more source

Reações de 1,2-dicloro-4,5-dinitrobenzeno com aminas: monossubstituição de nitro e dissubstituição de cloro e nitro Reactions of 1,2-dichloro-4,5-dinitrobenzene with amines: monosubstitution of chlorine and disubstitution of chlorine and nitro

open access: yesQuímica Nova, 2007
1,2-dichloro-4,5-dinitrobenzene (DCDNB) reacts with primary and secondary amines, in acetonitrile, at room temperature, to give a monosubstituted nitro product with a yield of 85 to 95%.
Fabrício Gava Menezes   +4 more
doaj   +1 more source

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