A Metal‐Free Amination of 1,2‐Diaza‐1,3‐dienes Using Hydrazine Hydrate Through N‐N Bond Cleavage
Sign Up to like & getrecommendations! Published in 2024 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.202400169
Abstract: : Herein, we have developed a metal‐free, atom‐economical, intrinsically sustainable approach for synthesizing unprotected 4,5‐diamino pyrazoles from readily available 1,2‐diaza‐1,3‐dienes. This approach utilizes inexpensive hydrazine hydrate as the aminating source. Further, we have explored the… read more here.
Keywords: metal free; free amination; diaza dienes; hydrazine hydrate ... See more keywords
Synergy of Rh Nanoparticles With Fe3O4 for Efficient Selective Catalytic Transfer Hydrogenation of Nitrostyrenes Using Stoichiometric Hydrazine Hydrate
Sign Up to like & getrecommendations! Published in 2024 at "Applied Organometallic Chemistry"
DOI: 10.1002/aoc.7685
Abstract: Hydrazine hydrate as a hydrogen source has a good effect on nitro reduction, but overuse has environmental toxicity and is prone to over‐hydrogenation, resulting in low selectivity. Herein, we report a magnetically separable Rh/Fe3O4 (1.26 wt%)… read more here.
Keywords: hydrogenation; using stoichiometric; hydrazine; hydrazine hydrate ... See more keywords
Hydrazine hydrate: A new reagent for Fmoc group removal in solid phase peptide synthesis
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.11.054
Abstract: Abstract In solid-phase peptide synthesis using the Fmoc/tBu strategy (SPPS-Fmoc/tBu), an orthogonal protection scheme of amino acids is used; specifically, the alpha-amine group is protected by the 9-fluorenylmethyloxycarbonyl (Fmoc) group, which is removed by weak… read more here.
Keywords: fmoc group; hydrazine hydrate; group; group removal ... See more keywords
Effect of hydrazine hydrate as complexing agent in the synthesis of zinc selenide thin films by chemical bath deposition
Sign Up to like & getrecommendations! Published in 2020 at "Thin Solid Films"
DOI: 10.1016/j.tsf.2019.137707
Abstract: Abstract ZnSe thin films were deposited using hydrazine hydrate (HH) as the only complexing agent. The deposition was carried out on glass substrates in an alkaline medium at low temperature using the chemical bath deposition… read more here.
Keywords: thin films; deposition; hydrazine hydrate; spectroscopy ... See more keywords
Hydrazine Hydrate Induced Two-Dimensional Porous Co3+ Enriched Co3O4 Nanosheets for Enhanced Water Oxidation Catalysis
Sign Up to like & getrecommendations! Published in 2020 at "ACS Sustainable Chemistry & Engineering"
DOI: 10.1021/acssuschemeng.0c02421
Abstract: Herein, a hydrazine hydrate (N2H4) induced sacrificial template method is reported for controlled synthesis of 2D porous Co3O4 nanosheets (p-Co3O4 NSs) with adjustable thickness and abundant hierar... read more here.
Keywords: hydrazine hydrate; hydrate induced; induced two; co3o4 nanosheets ... See more keywords
Europium ion post-functionalized zirconium metal–organic frameworks as luminescent probes for effectively sensing hydrazine hydrate
Sign Up to like & getrecommendations! Published in 2018 at "RSC Advances"
DOI: 10.1039/c8ra03049a
Abstract: We describe a highly sensitive chemical sensor for the detection of the hydrazine hydrate. The chemical sensor was synthesized by simply doping a UiO-66 type metal–organic framework (MOF) with Eu3+ through a well-known post-synthetic modification… read more here.
Keywords: hydrazine hydrate; hydrazine; metal organic; post ... See more keywords
Fe-doped carbonized polymer dot-based fluorescent sensor with "turn-on" property for hydrazine hydrate detection.
Sign Up to like & getrecommendations! Published in 2022 at "Dalton transactions"
DOI: 10.1039/d2dt03051a
Abstract: It has become a significant problem to develop and improve carbonized polymer dot (CPD)-based fluorescence sensors with environmental detection features. In this study, fluorescent "turn on" sensors of CPDs were prepared by a one-step hydrothermal… read more here.
Keywords: carbonized polymer; hydrazine hydrate; n2h4 h2o; polymer dot ... See more keywords
Co-N-C catalysts derived from folic acid and mediated by hydrazine hydrate for selective hydrogenation of quinoline
Sign Up to like & getrecommendations! Published in 2024 at "New Journal of Chemistry"
DOI: 10.1039/d4nj00096j
Abstract: Improving the dispersion of metal nanoparticles and suppressing metal aggregation have long been the keys to construct efficient metal-loaded catalysts. Herein, catalysts of cobalt (Co) supported on nitrogen (N)-doped carbon... read more here.
Keywords: folic acid; acid mediated; catalysts derived; derived folic ... See more keywords
Features of the reaction of some symmetrically substituted isoindigos with hydrazine hydrate
Sign Up to like & getrecommendations! Published in 2017 at "Russian Journal of General Chemistry"
DOI: 10.1134/s1070363217090304
Abstract: Depending on the structure of the substituent at the nitrogen atom of the heterocycle, reaction of isoindigo derivatives with hydrazine hydrate leads to the formation of either oxindole derivatives, or to a substituted isatin-3-hydrazone. read more here.
Keywords: isoindigos hydrazine; features reaction; hydrazine hydrate; substituted isoindigos ... See more keywords
Reactions of 3-Arylhydrazono-2,4-dioxobutanoates with Hydrazine Hydrate
Sign Up to like & getrecommendations! Published in 2018 at "Russian Journal of General Chemistry"
DOI: 10.1134/s1070363218060075
Abstract: Abstract4-Substituted 3-arylhydrazono-2,4-dioxobutanoates acids esters undergo cyclization under the action of hydrazine hydrate to form 4-arylazo-3-pyrazolecarboxylic acids derivatives. The structure of the compounds obtained was determined from spectral methods. read more here.
Keywords: dioxobutanoates hydrazine; chemistry; hydrazine hydrate; arylhydrazono dioxobutanoates ... See more keywords
Heterocyclization of Bis(2-chloroprop-2-en-1-yl)sulfide in Hydrazine Hydrate–KOH: Synthesis of Thiophene and Pyrrole Derivatives
Sign Up to like & getrecommendations! Published in 2022 at "Molecules"
DOI: 10.3390/molecules27206785
Abstract: The article is devoted to heterocyclization of bis(2-chloroprop-2-en-1-yl)sulfide which proceeds in hydrazine hydrate–alkali medium and leads to formation of thiophene and pyrrole derivatives: previously described 4,5,9,10-tetrahydrocycloocta[1,2-c;5,8-c’]dithiophene, as well as unknown hydrazone of 5-methylidene-3-methyldihydrothiophen-2-one and 1-amino-2-(propynylsulfanylpropenylsulfanyl)-3,5-dimethylpyrrole.… read more here.
Keywords: bis chloroprop; hydrazine hydrate; heterocyclization bis; thiophene pyrrole ... See more keywords