Category: iodides-buliding-blocks

《A Mild and Versatile Friedel-Crafts Methodology for the Diversity-Oriented Synthesis of Redox-Active 3-Benzoylmenadiones with Tunable Redox Potentials》 was published in Chemistry – A European Journal in 2020. These research results belong to Cotos, Leandro; Donzel, Maxime; Elhabiri, Mourad; Davioud-Charvet, Elisabeth. COA of Formula: C7H5IO2 The article mentions the following:

A series of highly diversified 3-aroylmenadiones I [R = 4-F, 4-CF3, 3-NO2, etc.] was prepared by a new Friedel-Crafts acylation variant/oxidative demethylation strategy. A mild and versatile acylation was performed between 1,4-dimethoxy-2-methylnaphthalene and various activated/deactivated benzoic and heteroaromatic carboxylic acids, in the presence of mixed trifluoroacetic anhydride and triflic acid, at room temperature and in air. The 1,4-dimethoxy-2-methylnaphthalene-derived benzophenones II were isolated in high yield, and submitted to oxidative demethylation with cerium ammonium nitrate to produce 3-aroylmenadiones I. All 1,4-naphthoquinone derivatives were investigated as redox-active electrophores by cyclic voltammetry. The electrochem. data recorded for 3-acylated menadiones were characterized by a second redox process, the potentials of which cover a wide range of values (500 mV). These data emphasize the ability of the generated structural diversity at the 3-aroyl chain of these electrophores to fine-tune their corresponding redox potentials. These properties were of significance in the context of antimalarial drug development and understanding of the mechanism of bioactivation/action. The experimental part of the paper was very detailed, including the reaction process of 4-Iodobenzoic acid(cas: 619-58-9COA of Formula: C7H5IO2)

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.COA of Formula: C7H5IO2Iodo 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 2019,Polymers (Basel, Switzerland) included an article by Zhang, Mingjing; Zhu, Liangjian; Guo, Pengzhi; Wang, Xunchang; Tong, Junfeng; Zhang, Xiaofang; Jia, Yongjian; Yang, Renqiang; Xia, Yangjun; Wang, Chenglong. Product Details of 516-12-1. The article was titled 《Effect of flank rotation on the photovoltaic properties of dithieno[2,3-d:2′,3′-d′]benzo [1,2-b:4,5-b′]dithiophene-based narrow band gap copolymers》. The information in the text is summarized as follows:

Side chain engineering has been an effective approach to modulate the solution processability, optoelectronic properties and miscibility of conjugated polymers (CPs) for organic/polymeric photovoltaic cells (PVCs). As compared with the most commonly used method of introducing alkyl chains, the employment of alkyl-substituted aryl flanks would provide two-dimensional (2-D) CPs having solution processability alongside addnl. merits like deepened HOMO (HOMO) energy levels, increased absorption coefficient and charger transporting, etc. In this paper, the triple C≃C bond was used as conjugated linker to decrease the steric hindrance between the flanks of 4,5-didecylthien-2-yl (T) and dithieno[2,3-d:2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene (DTBDT) core. In addition, an alternating CP derived from 4,5-didecylthien-2-yl-ethynyl (TE) flanked DTBDT, and 4,9-bis(4-octylthien-2-yl) naphtho[1,2-c:5,6-c′]bis[1,2,5]thiadiazole (DTNT), named as PDTBDT-TE-DTNT, was synthesized and characterized. As compared with the controlled PDTBDT-T-DTNT, which was derived from 4,5-didecylthien-2-yl flanked DTBDT and DTNT, the results for exciton dissociation probability, d. functional theory (DFT), time-resolved photoluminescence (PL) measurements, etc., revealed that the lower steric hindrance between TE and DTBDT might lead to the easier rotation of the TE flanks, thus contributing to the decrease of the exciton lifetime and dissociation probability, finally suppressing the short-circuit c.d. (JSC), etc., of the photovoltaic devices from PDTBDT-TE-DTNT. In the experimental materials used by the author, we found 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Product Details of 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. Product Details of 516-12-1

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

In 2019,Advanced Synthesis & Catalysis included an article by Zhou, Bingnan; Dong, Jun; Xu, Jiaxi. Safety of Trimethylsulfoxonium iodide. The article was titled 《Safe, Metal-Free and Direct Synthesis of Dialkyl Acylmethylidenehydrazine-1,1-dicarboxylates from Dimethylsulfoxonium Acylmethylides and Dialkyl Azodicarboxylates》. The information in the text is summarized as follows:

N-Acylhydrazones were versatile electrophiles for the synthesis of nitrogen-containing compounds Dialkyl acylmethylidenehydrazine-1,1-dicarboxylates are a class of N-acylhydrazones and were prepared efficiently from dimethylsulfoxonium acylmethylides and dialkyl azodicarboxylates. The reaction was temperature-controlled, generating tetraalkyl 3,6-diacyl-1,2,4,5-tetrazinane-1,2,4,5-tetracarboxylates as major products accompanied by dialkyl acylmethylidenehydrazine-1,1-dicarboxylates as byproducts at low temperature, or dialkyl acylmethylidenehydrazine-1,1-dicarboxylates only at high temperature The current direct synthetic method was a safe and transition-metal-free route for the synthesis of dialkyl acylmethylidenehydrazine-1,1-dicarboxylates. The experimental process involved the reaction of Trimethylsulfoxonium iodide(cas: 1774-47-6Safety of Trimethylsulfoxonium iodide)

Trimethylsulfoxonium iodide(cas: 1774-47-6) reacts with sodium hydride to prepare dimethyloxosulfonium methylide, which is used as a methylene-transfer reagent in synthetic chemistry. It is used to prepare ylide, which reacts with carbonyl compounds to get epoxides.Safety of Trimethylsulfoxonium iodide

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

In 2019,Chemistry – A European Journal included an article by Tahara, Takuma; Suzuki, Shuichi; Kozaki, Masatoshi; Shiomi, Daisuke; Sugisaki, Kenji; Sato, Kazunobu; Takui, Takeji; Miyake, Yota; Hosokoshi, Yuko; Nojiri, Hiroyuki; Okada, Keiji. Quality Control of 1,2-Diiodoethane. The article was titled 《Triplet Diradical-Cation Salts Consisting of the Phenothiazine Radical Cation and a Nitronyl Nitroxide》. The information in the text is summarized as follows:

The spin-spin and magnetic properties of two (nitronyl nitroxide)-(di-p-anisylamine-phenothiazine) diradical cation salts, (DAA-PTZ)+-NN·MBr4- (M = Ga, Fe), have been investigated. These diradical-cation species were prepared by the cross-coupling of iodophenothiazine DAA-PTZ-I with NN-AuPPh3 followed by oxidation with the thianthrenium radical cation (TA+·MBr4-). These salts are highly stable under aerobic conditions. For the GaBr4 salt, large ferromagnetic intramol. and small antiferromagnetic intermol. interactions (J1/kB=+320 K and J2/kB=-2 K, resp.) were observed The magnetic property of the Fe3+ salt was analyzed by using a six-spin model assuming identical intramol. exchange interaction (J3/kB=+320 K) and the other exchange interactions (J4/kB=-7 K and J5/kB=-4 K). A significant color change was observed in the UV/visible/NIR absorption spectra upon electrochem. oxidation of the doublet DAA-PTZ-NN to the triplet (DAA-PTZ)+-NN. In the experiment, the researchers used 1,2-Diiodoethane(cas: 624-73-7Quality Control of 1,2-Diiodoethane)

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.Quality Control of 1,2-Diiodoethane

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

In 2019,Organic Chemistry Frontiers included an article by Chen, Xiaoyan; Zhou, Hao; Chen, Zhiyuan. Safety of Methyl 2-Fluoro-5-iodobenzoate. The article was titled 《Pd/P/dba-Promoted cascade annulations to produce fused medium-sized sulfoximine polyheterocycles》. The information in the text is summarized as follows:

The Pd-catalyzed multicomponent reactions of NH-sulfoximines, Ph iodides and norbornadiene (NBD) were reported to chemoselectively produced fused medium-sized sulfoximine polyheterocycles in good to excellent yields. The addition of the dibenzylideneacetone (dba) ligand was found to be useful for this tandem annulation reaction. Under the optimized conditions, a broad range of 3D-type heterocyclic sulfoximines with good functional group tolerance were generated. In the experiment, the researchers used Methyl 2-Fluoro-5-iodobenzoate(cas: 625471-27-4Safety of Methyl 2-Fluoro-5-iodobenzoate)

Methyl 2-Fluoro-5-iodobenzoate(cas: 625471-27-4) belongs to organic iodides. Generally organic iodides can be divided into two classes of alkyl iodides and aryl iodides. Safety of Methyl 2-Fluoro-5-iodobenzoate Typical reactions of alkyl iodides include nucleophilic substitution, elimination, reduction, and the formation of organometallics.

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

Bunzen, Jens; Hovorka, Rainer; Lutzen, Arne published their research in Journal of Organic Chemistry on August 7 ,2009. The article was titled 《Surprising Substituent Effects on the Self-Assembly of Helicates from Bis(bipyridyl) BINOL Ligands》.SDS of cas: 189518-78-3 The article contains the following contents:

Several bis(bipyridyl)ethynyl BINOL ligands (I, R = H, Ph, CO2Me, C7H15; R’ = H, C6H13) were prepared using a convergent building block approach. These were studied with regard to their ability to undergo self-assembly to dinuclear helicates upon coordination to suitable late-transition-metal ions. Surprisingly, the substituents at the periphery of the ligand structure have a marked influence on the outcome of the self-assembly processes with regard to the helicates composition, the stereoselectivity of the helicate formation, their redox reactivity, and their electronic properties as scrutinized by NMR- and CD-spectroscopic methods as well as ESI-mass spectrometric methods. In addition to this study using (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene, there are many other studies that have used (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3SDS of cas: 189518-78-3) was used in this study.

(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.SDS of cas: 189518-78-3Iodo 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