Month: October 2022

《Palladium nanoparticles encapsuled in MOF: An efficient dual-functional catalyst to produce benzylmalononitrile derivatives by one-pot reaction》 was written by Zhang, Yu-Yang; Zhou, Mei-Li; Bao, Yan-Sai; Yang, Ming; Cui, Yong-He; Liu, Da-Liang; Wu, Qiong; Liu, Lin; Han, Zheng-Bo. HPLC of Formula: 15164-44-0This research focused onzeolite type metal organic framework encapsulated palladium nanocatalyst preparation; benzylmalononitrile preparation; alkyne malononitrile halobenzaldehyde Sonogashira Knoevenagel palladium nanocatalyst; alkene malononitrile halobenzaldehyde Heck Knoevenagel palladium nanocatalyst. The article conveys some information:

Herein, Pd nanoparticles were loaded on a zeolite-type metal-organic framework (MOF) (MIL-101(Cr)-NH2) via post-synthetic impregnation approach to form composites Pd@MIL-101(Cr)-NH2. In addition, the obtained dual-functional Pd@MIL-101(Cr)-NH2 showed great catalytic performance (>99% yields) in the one-pot Sonogashira-Knoevenagel and Heck-Knoevenagel reactions. Furthermore, all characterization methods showed that catalyst with Pd-Bronsted base had high stability to avoid metal agglomeration, leaching, and still maintained high activity after 6 cycles under the same circumstances. These reactions had potential significance for the production of benzylmalononitrile derivatives with high economic benefits. In the experiment, the researchers used many compounds, for example, 4-Iodobenzaldehyde(cas: 15164-44-0HPLC of Formula: 15164-44-0)

4-Iodobenzaldehyde(cas: 15164-44-0) is used in synthesis of 4-[2-(trimethylsilyl)ethynyl]benzaldehyde, 5,15-dimesityl-10-(3-[2-(trimethylsilyl)ethynyi]phenyl}-20-(4-iodophenyl)porphyrin, and 5,15-dimesityl-10-[3,5-bis{2-[4-(N,N’-difluoroboryl-1,9-dimethyidipyrrin-5-yl)-phenyl]ethynyl}phenyl]-20-(4-iodophenyl)porphyrin.HPLC of Formula: 15164-44-0

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Self-Assembly and Catalytic Reactivity of BINOL-Bridged Bis(phenanthroline) Metallocages》 was written by Cheng, Kai-Yu; Wang, Shi-Cheng; Chen, Yu-Sheng; Chan, Yi-Tsu. COA of Formula: C24H20I2O4 And the article was included in Inorganic Chemistry on April 2 ,2018. The article conveys some information:

Upon treatment with ZnII ions, a series of BINOL-bridged bis(phenanthroline) ligands was self-assembled into [M2L3] metallocages, which were carefully characterized by NMR spectroscopy and ESI-MS spectrometry. Among them, a racemic mixture of the BINOL-bridged bis(phenanthrolines) underwent chiral self-sorting to afford two homochiral metallocages. The narcissistic self-sorting process of the metallocages was observed in the complexation reaction of the constitutionally isomeric bis(phenanthrolines) with varying connection positions. Moreover, the endo hydroxyl-functionalized metallocage [Zn2{(S)-L2OH}3] exhibited catalytic activity and substrate selectivity for the Knoevenagel condensation reactions of aromatic tricarbaldehydes with malononitrile. The results came from multiple reactions, including the reaction of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3COA of Formula: C24H20I2O4)

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.COA of Formula: C24H20I2O4Iodo alkanes participate in a variety of organic synthesis reactions, which include the Simmons–Smith reaction (cyclopropanation using iodomethane), Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In 2018,Dalton Transactions included an article by Reiners, Matthias; Maekawa, Miyuki; Baabe, Dirk; Zaretzke, Marc-Kevin; Schweyen, Peter; Daniliuc, Constantin G.; Freytag, Matthias; Raeder, Jan; Hohenberger, Johannes; Sutter, Joerg; Meyer, Karsten; Walter, Marc D.. Category: iodides-buliding-blocks. The article was titled 《Monomeric Fe(III) half-sandwich complexes [Cp’FeX2] – synthesis, properties and electronic structure》. The information in the text is summarized as follows:

The half-sandwich complex [Cp’Fe(μ-I)]2 (1; Cp’ = η5-1,2,4-(Me3C)3C5H2) is cleaved when heated in toluene to form a cation-anion pair [{Cp’Fe(η6-toluene)}+{Cp’FeI2}-] (2), in which the two Fe(II) atoms adopt different spin states, i.e., a low-spin (S = 0) and a high-spin (S = 2) configuration. Upon oxidation of 1 with C2H4I2, the thermally stable 15VE species [Cp’FeI2] (3) can be isolated, in which the Fe(III) atom adopts an intermediate spin (S = 3/2) configuration. Complex 3 is an excellent starting material for further functionalizations and it reacts with Mg(CH2SiMe3)2 to form the unprecedented Fe(III) (S = 3/2) bis(alkyl) complex [Cp’Fe(CH2SiMe3)2] (4). The resp. spin states of complexes 2-4 are confirmed by single-crystal x-ray crystallog., zero-field 57Fe Mossbauer spectroscopy, and solid-state magnetic susceptibility measurements. In contrast to the related 14VE high-spin (S = 2) Fe(II) alkyl species [Cp’FeCH(SiMe3)2], which resists the reaction with H2 as a consequence of a spin-induced reaction barrier, complex 4 reacts cleanly with H2 (8 bar) in cyclohexane to yield iron hydrides [{Cp’Fe}2(μ-H)3] (5) and [Cp’Fe(μ-H)2]2 (6) in a 1 : 4 ratio. However, when the hydrogenation of 4 is carried out in benzene, a green 19VE [Cp’Fe(η6-C6H6)] (A) intermediate is formed, which dimerizes to the bis(cyclohexadienyl)-bridged product [(Cp’Fe)2(μ2-η5:η5-C12H12)] (7). Further evidence for the intermediacy of [Cp’Fe(η6-C6H6)] (A) was gathered by X-band EPR and UV/vis spectroscopy. Interestingly, attempts to oxidize 7 with AgSbF6 proceeded via C-C bond cleavage instead of metal oxidation to form [Cp’Fe(C6H6)][SbF6] (8). After reading the article, we found that the author used 1,2-Diiodoethane(cas: 624-73-7Category: iodides-buliding-blocks)

1,2-Diiodoethane(cas: 624-73-7) is one of organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond. Iodo alkanes participate in a variety of organic synthesis reactions, which include the Simmons–Smith reaction (cyclopropanation using iodomethane), Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction.Category: iodides-buliding-blocks

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The author of 《Iodide as a Nucleophilic Trigger in Aryne Three-Component Coupling for the Synthesis of 2-Iodobenzyl Alcohols》 were Bhattacharjee, Subrata; Guin, Avishek; Gaykar, Rahul N.; Biju, Akkattu T.. And the article was published in Organic Letters in 2019. Recommanded Product: 88-67-5 The author mentioned the following in the article:

The synthetic potential of KI as the iodide source in aryne three-component coupling has been demonstrated using aldehydes as the third component. This mild and transition-metal-free coupling reaction allowed the straightforward synthesis of 2-iodobenzyl alcs. in moderate to good yields with good functional group compatibility. Moreover, KBr and KCl could be used as the nucleophilic trigger in this aryne multicomponent coupling (MCC) and N-methylisatin and CO2 could be used as the electrophilic third components.2-Iodobenzoic acid(cas: 88-67-5Recommanded Product: 88-67-5) was used in this study.

2-Iodobenzoic acid(cas: 88-67-5) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.Recommanded Product: 88-67-5

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The author of 《Pd-Catalyzed Boroperfluoroalkylation of Alkynes Opens a Route to One-Pot Reductive Carboperfluoroalkylation of Alkynes with Perfluoroalkyl and Aryl Iodides》 were Domanski, Sylwester; Gatlik, Beata; Chaladaj, Wojciech. And the article was published in Organic Letters in 2019. Name: 4-Iodobenzaldehyde The author mentioned the following in the article:

A three-component tandem Pd-catalyzed perfluoroalkylative borylation of terminal and internal alkynes is presented. On the basis of this methodol., the first reductive dicarbofunctionalization of alkynes with two electrophiles (perfluoroalkyl and aryl iodides) through a temperature-controlled sequence of iodoperfluoroalkylation-borylation coupling is developed. This regio- and stereoselective process is easily controllable by a temperature program, providing access to fluoroalkyl-substituted vinyl iodides, vinyl boronates, or olefins from the very same complex reaction mixture (four substrates, catalysts, base, and additives). After reading the article, we found that the author used 4-Iodobenzaldehyde(cas: 15164-44-0Name: 4-Iodobenzaldehyde)

4-Iodobenzaldehyde(cas: 15164-44-0) is used in synthesis of 4-[2-(trimethylsilyl)ethynyl]benzaldehyde, 5,15-dimesityl-10-(3-[2-(trimethylsilyl)ethynyi]phenyl}-20-(4-iodophenyl)porphyrin, and 5,15-dimesityl-10-[3,5-bis{2-[4-(N,N’-difluoroboryl-1,9-dimethyidipyrrin-5-yl)-phenyl]ethynyl}phenyl]-20-(4-iodophenyl)porphyrin.Name: 4-Iodobenzaldehyde

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The author of 《Plasmonic catalysis for the Suzuki-Miyaura cross-coupling reaction using palladium nanoflowers》 were Sarhid, Iyad; Abdellah, Ibrahim; Martini, Cyril; Huc, Vincent; Dragoe, Diana; Beaunier, Patricia; Lampre, Isabelle; Remita, Hynd. And the article was published in New Journal of Chemistry in 2019. COA of Formula: C7H7I The author mentioned the following in the article:

Plasmonic catalysis enables the realization of reactions using solar light with less energy and time consumption. Pd nanoflowers synthesized by a radiolytic reduction of PdII(acac)2 in ethanol under a CO atm. exhibit a broad plasmon band in the visible-near IR domain. These plasmonic nanostructures showed remarkably enhanced the photocatalytic activity for Suzuki-Miyaura reactions under visible light irradiation In the experimental materials used by the author, we found 1-Iodo-4-methylbenzene(cas: 624-31-7COA of Formula: C7H7I)

1-Iodo-4-methylbenzene(cas: 624-31-7) is used in wide range of medicals industrial applications as well as in pharmaceutical intermediates, polarizing films for Liquid Crystal Display (LCD) chemicals.COA of Formula: C7H7I

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Synthesis of the tetrasaccharide repeating unit of the O-antigen from Pseudomonas putida BIM B-1100 having rare D-Quip3NAc》 was published in Carbohydrate Research in 2020. These research results belong to Bera, Madhumita; Mukhopadhyay, Balaram. HPLC of Formula: 516-12-1 The article mentions the following:

Chem. synthesis of the complex tetrasaccharide repeating unit of the O-antigen from Pseudomonas putida BIM B-1100 is accomplished in the form of its 2-aminoethyl glycoside to leave the scope for further glycoconjugate formation without hampering the anomeric stereochem. A [2 + 2] strategy is followed to complete the total synthesis and a late stage TEMPO mediated oxidation is used to install the required uronic acid. A radical mediated 6-deoxygenation with subsequent protecting group manipulation strategy is used for the preparation of the rare D-FucpNAc and D-Quip3NAc derivatives from suitable D-glucosamine derivatives The results came from multiple reactions, including the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1HPLC of Formula: 516-12-1)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. HPLC of Formula: 516-12-1

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Photocatalytic Umpolung of N- and O-substituted alkenes for the synthesis of 1,2-amino alcohols and diols》 was written by Amos, Stephanie G. E.; Nicolai, Stefano; Waser, Jerome. Formula: C7H5IO2 And the article was included in Chemical Science in 2020. The article conveys some information:

An organophotocatalytic 1,2-oxyalkynylation of ene-carbamates and enol ethers using ethynyl benziodoxolones (EBXs). 1-alkynyl-1,2-amino alcs. and diols were obtained in up to 89% yield was reported. Photocatalytic formation of radical cations led to Umpolung of the innate reactivity of the alkenes, enabled addition of a nucleophilic benzoate followed by radical alkynylation.2-Iodobenzoic acid(cas: 88-67-5Formula: C7H5IO2) was used in this study.

2-Iodobenzoic acid(cas: 88-67-5) belongs to organic iodides.Formula: C7H5IO2 The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. In general, organic iodides are light-sensitive and turn yellow during storage, owing to the formation of iodine.

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Transition-metal influence (Fe, Co, Ni, Cu) on the MoWS catalyst for biphenyl hydrogenation》 was written by Olivas, A.; Gaxiola, E.; Cruz-Reyes, J.; Alvarez-Amparan, M. A.; Valdez, R.. Computed Properties of C4H4INO2 And the article was included in Fuel Processing Technology in 2020. The article conveys some information:

The hydrogenation of aromatic hydrocarbon compounds derived of hydrocarbon fuels is crucial to avoid the current environment pollution, harmful to human health. Also, the hydrogenated products can be used as chem. intermediates, additives, and in other chem. processes. The search of efficient and cost-effective catalysts for the hydrogenation of aromatic hydrocarbon compounds is a current challenge in the industrial and scientific community. In this study, trimetallic unsupported MMoW (M = Fe, Co, Ni, and Cu) sulfide catalysts were synthesized and tested in the liquid-phase biphenyl (BP) hydrogenation at 300 °C and 5.5 MPa of H2 pressure. The catalysts were characterized by XRD, SEM-EDX, TEM-SAED and adsorption-desorption of N2. The presence of NiS, CoSx, MoFe2S4, Cu9S5 crystalline sulfide phases together with Mo(W)S2 crystalline sulfide phase, as well as the crystallite size and the surface area, influenced the catalytic performance. Ni-based catalysts were the most active in the BP hydrogenation. A BP conversion value of ∼99% of biphenyl and selectivity of 52% towards cyclohexylbenzene (CHB) and 47% towards bicyclohexyl were reached using NiMoWS catalyst. The presence of NiS crystals, stacked curve-shape Mo(W)S2 crystalline phases and larger surface area values increased the catalytic activity using NiMoWS catalysts. The experimental process involved the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Computed Properties of C4H4INO2)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Computed Properties of C4H4INO2

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

《Mo, Co co-doped NiS bulks supported on Ni foam as an efficient electrocatalyst for overall water splitting in alkaline media》 was written by Wu, Caiyun; Du, Yunmei; Fu, Yunlei; Feng, Di; Li, Hui; Xiao, Zhenyu; Liu, Yanru; Yang, Yu; Wang, Lei. Application In Synthesis of 1-Iodopyrrolidine-2,5-dione And the article was included in Sustainable Energy & Fuels in 2020. The article conveys some information:

In this study, a composite of Mo, Co co-doped NiS bulks grown on an Ni foam (Mo,Co-NiS/NF) was synthesized as a bi-functional electrocatalyst for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) using a simple method. The existence of ZIF-67 and Mo ensure the even distribution of Co and Mo elements and the formation of N doped carbon layer in Mo, Co-NiS/NF. Mo, Co co-doping and NF support greatly improved the electrocatalytic performance of NiS bulks, because metal element doping could improve the intrinsic activity and elec. conductivity Moreover, the Ni foam could act as a substrate to avoid aggregation and provide nickel source to form the bimetallic sulfide. The product Mo,Co-NiS/NF-400 showed outstanding electrochem. properties, with ultralow overpotential (92 mV vs. RHE) for HER and ultralow overpotential (117.2 mV vs. RHE) for OER to achieve 10 mA cm-2, as well as the ultralow cell voltage (1.36 V) to achieve 20 mA cm-2 for overall water splitting. This study provides an available method to promote the electrocatalytic activity of the traditional monometallic sulfides for overall water splitting. In the experiment, the researchers used many compounds, for example, 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Application In Synthesis of 1-Iodopyrrolidine-2,5-dione)

1-Iodopyrrolidine-2,5-dione(cas: 516-12-1) is used in the preparation of vinyl sulfones from olefins and benzenesulfinic acid. It acts as a source for I+ and involved in Hunsdiecker reactions for the conversion of cinnamic acids, and propiolic acids to the corresponding alfa-halostyrenes and 1-halo-1-alkynes respectively. Application In Synthesis of 1-Iodopyrrolidine-2,5-dione

Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com