Month: October 2022

Zhang, Xu; Huang, Yu-Mei; Qin, Hua-Li; Zhang, Baoguo; Rakesh, K. P.; Tang, Haolin published their research in ACS Omega in 2021. The article was titled 《Copper-Promoted Conjugate Addition of Carboxylic Acids to Ethenesulfonyl Fluoride (ESF) for Constructing Aliphatic Sulfonyl Fluorides》.Computed Properties of C7H5IO2 The article contains the following contents:

A CuO-promoted direct hydrocarboxylation of ethenesulfonyl fluoride (ESF) was developed using carboxylic acid as a nucleophile under mild conditions. A variety of mols. containing both ester group and aliphatic sulfonyl fluoride moiety exhibit great potential in medicinal chem. and chem. biol. Furthermore, the modification of the known drugs Ibuprofen and Aspirin was also demonstrated. In addition to this study using 4-Iodobenzoic acid, there are many other studies that have used 4-Iodobenzoic acid(cas: 619-58-9Computed Properties of C7H5IO2) was used in this study.

4-Iodobenzoic acid(cas: 619-58-9) belongs to organic iodides. The carbon-iodine bond is weaker than other carbon-halogen bonds due to the poor electronegative nature of the iodine atom. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Computed Properties of C7H5IO2

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

Sun, Jifu; Li, Weixu; Hou, Yuqi; Zhang, Xue; Gao, Zhongzheng; Wang, Bo; Zhao, Jianzhang published an article in 2021. The article was titled 《a-PET and Weakened Triplet-Triplet Annihilation Self-Quenching Effects in Benzo-21-Crown-7-Functionalized Diiodo-BODIPY》, and you may find the article in ACS Omega.Safety of 1-Iodopyrrolidine-2,5-dione The information in the text is summarized as follows:

Weakening the triplet-triplet annihilation (TTA) self-quenching effect induced by sensitizers remains a tremendous challenge due to the very few investigations carried out on them. Herein, benzo-21-crown-7 (B21C7)-functionalized 2,6-diiodo-1,3,5,7-tetramethyl-8-phenyl-4,4-difluoroboradiazaindacene (DIBDP) was synthesized to investigate the influences of huge bulks and electron-rich cavities of B21C7 moieties on the fluorescence emission and triplet-state lifetimes of DIBDP moieties. D. functional theory (DFT)/time-dependent DFT (TDDFT) computable results preliminarily predicted that B21C7 moieties had influences on the fluorescence emissions of DIBDP moieties but not on their localization of triplet states of B21C7-functionalized DIBDP (B21C7-DIBDP). The UV-vis absorption spectra, fluorescence emission spectra, and cyclic voltammograms verified that there was an electron-transfer process from the B21C7 moiety to the DIBDP moiety in B21C7-DIBDP. However, the calculated results of ΔGCS and ECS values and nanosecond time-resolved transient absorption spectra demonstrated that the electron-transfer process from the B21C7 moiety to the DIBDP moiety in B21C7-DIBDP had direct influences on the fluorescence emission of DIBDP moieties but not on the triplet states of DIBDP moieties. The exptl. values of triplet-state lifetimes of B21C7-DIBDP were obviously longer than those of DIBDP at a high concentration (1.0 x 10-5 M); however, the fitted values of intrinsic triplet-state lifetimes of B21C7-DIBDP were slightly greater than those of DIBDP in the same solvent. These results demonstrated that the steric hindrance of B21C7 moieties could weaken the TTA self-quenching effect of DIBDP moieties at a high concentration and the a-PET effect induced a proportion of the produced singlet states of DIBDP moieties and could not emit fluorescence in the form of radiation transition but they could be transformed into triplet states through intersystem crossing (ISC) processes due to the iodine atoms in the DIBDP moiety. The stronger a-PET effects in polar solvents induced smaller fluorescence quantum yields so that more singlet states of DIBDP moieties were transformed into triplet states to weaken the TTA self-quenching effects. After reading the article, we found that the author used 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Safety 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. Safety of 1-Iodopyrrolidine-2,5-dione

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

In 2022,Zhang, Liming; Zhao, Wenqing; Yuan, Shaohui; Yang, Yue; Ge, Peng; Sun, Wei; Ji, Xiaobo published an article in Small. The title of the article was 《Tailoring MSx Quantum Dots (M = Co, Ni, Cu, Zn) for Advanced Energy Storage Materials with Strong Interfacial Engineering》.Related Products of 516-12-1 The author mentioned the following in the article:

Metal sulfides, as vital members of electrodes materials, still suffer from serious volume expansion and polysulfides shuttling. Herein, through inexpensive and high efficiency chem.-bonding/hydrophobic-association methods, a series of metal-sulfides quantum dots (QDs) with large-scale synthesis (≈100 g) is successfully prepared, further forming low-dimensional composites with high redox activity. For the derived electrodes samples, with the increasing of outer electron numbers (Co2+/Ni2+/Cu2+/Zn2+), interfacial coupling is significantly modified. Among them, nanoscale ZnS@double carbon with rich interfacial Zn-O/S-C bonds displays remarkable electrochem. activity, with the capacity of ≈1000 mAh g-1 after 100 loops. Through tailoring double carbons and interfacial merits, in situ sulfur formation is stabilized, and the cycling stability of Zn-based samples can increase up to 4000 cycles. Even at 5.0 A g-1 after 1500 cycles, the full-cells capacity can reach up to ≈380 mAh g-1. Supported by detailed kinetic anal. and ex situ technologies, the enhanced interfacial capacitances and ions moving are confirmed for the improved electrochem. properties. Given this, the work is expected to boost future developments of mineral processing, and QDs preparation, while providing effective strategies for advanced electrode materials.1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Related Products of 516-12-1) was used in this study.

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. Related Products of 516-12-1

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

In 2022,Wang, Wei; Yao, Ken; Wu, Fan published an article in Synlett. The title of the article was 《Nickel-Catalyzed Reductive Cross-Coupling of Benzylic Sulfonium Salts with Aryl Iodides》.Related Products of 15164-44-0 The author mentioned the following in the article:

A nickel-catalyzed cross-electrophile coupling of benzylic sulfonium salts R1CH(S+(CH3)2)R2·O-S(O)CF3 [R1 = Ph, naphthalen-2-yl, benzo[d][1,3]dioxol-5-yl, etc.; R2 = H, Me, Et] with aryl iodides R3I [R3 = 4-carboxymethylphenyl, 9H-fluoren-2-yl, 4-formylphenyl, etc.] has been developed, providing direct access to diarylalkanes R1CH(R2)R3 from readily available and stable coupling partners. Preliminary mechanistic studies suggest that the C-S bond cleavage proceeds through a single-electron transfer process to generate a benzylic radical. After reading the article, we found that the author used 4-Iodobenzaldehyde(cas: 15164-44-0Related Products of 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.Related Products of 15164-44-0

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

Name: Trimethylsulfoxonium iodideIn 2021 ,《Ni-Catalyzed Intramolecular Reductive 1,2-Dicarbofunctionalization of Alkene: Facile Access to Podophyllum Lignans Core》 was published in Synlett. The article was written by Xiao, Jian; Wang, Ya-Wen; Qiu, Zhong-Ping; Peng, Yu. The article contains the following contents:

The facile access to the tetracyclic skeleton of podophyllotoxin (5R,5aS,6R,8aR)/(5R,5aS,6S,8aS)-I, a medicinally important lignan natural product, was efficiently achieved via a unique intramol. alkylarylation of the tethered alkene II in dihalide under mild conditions using reductive nickel catalysis. In the experiment, the researchers used Trimethylsulfoxonium iodide(cas: 1774-47-6Name: 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. Further, it reacts with alfa,beta-unsaturated esters to get cyclopropyl esters.Name: Trimethylsulfoxonium iodide

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

《Alkaline Soil Degradation and Crop Safety of 5-Substituted Chlorsulfuron Derivatives》 was published in Molecules in 2022. These research results belong to Wu, Lei; Hua, Xue-Wen; Li, Yong-Hong; Wang, Zhong-Wen; Zhou, Sha; Li, Zheng-Ming. Name: 1-Chloro-4-iodo-2-nitrobenzene The article mentions the following:

Sulfonylurea herbicides can lead to serious weed resistance due to their long degradation times and large-scale applications. This is especially true for chlorsulfuron, a widely used acetolactate synthase inhibitor used around the world. Its persistence in soil often affects the growth of crop seedlings in the following crop rotation, and leads to serious environmental pollution all over the world. Our research goal is to obtain chlorsulfuron-derived herbicides with high herbicidal activities, fast degradation times, as well as good crop safety. On account of the slow natural degradation of chlorsulfuron in alk. soil, based on the previously reported results in acidic soil, the degradation behaviors of 5-substituted chlorsulfuron analogs (L101-L107) were investigated in a soil with pH 8.39. The exptl. data indicated that 5-substituted chlorsulfuron compounds could accelerate degradation rates in alk. soil, and thus, highlighted the potential for rational controllable degradation in soil. The degradation rates of these chlorsulfuron derivatives were accelerated by 1.84-77.22-fold, compared to chlorsulfuron, and exhibited excellent crop safety in wheat and corn (through pre-emergence treatment). In combination with bioassay activities, acidic and alk. soil degradation, and crop safety, it was concluded that compounds L104 and L107, with Et or Me groups, are potential green sulfonylurea herbicides for pre-emergence treatment on wheat and corn. This paper provides a reference for the further design of new sulfonylurea herbicides with high herbicidal activity, fast, controllable degradation rates, and high crop safety. After reading the article, we found that the author used 1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3Name: 1-Chloro-4-iodo-2-nitrobenzene)

1-Chloro-4-iodo-2-nitrobenzene(cas: 41252-95-3) belongs to organic iodides. 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.Name: 1-Chloro-4-iodo-2-nitrobenzene

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

Application of 189518-78-3On May 9, 2018 ,《Aggregation-induced CPL response from chiral binaphthyl-based AIE-active polymers via supramolecular self-assembled helical nanowires》 appeared in Polymer. The author of the article were Ma, Jing; Wang, Yuxiang; Li, Xiaojing; Yang, Lan; Quan, Yiwu; Cheng, Yixiang. The article conveys some information:

In this paper chiral polymer R-P could be synthesized by click polymerization reaction of (R)-3,3′-diethynyl-2,2′-bis(octyloxy)-1,1′-binaphthalene (R-M-1) and 1,2-bis(4-azidophenyl)-1,2-diphenylethene (M-2), and S-P was obtained by click polymerization reaction of (S)-3,3′-diethynyl-2,2′-bis(octyloxy)-1,1′-binaphthalene (S-M-1) and M-2, resp. R-/S-P enantiomers can show strong aggregation-induced circularly polarized luminescence (AICPL) emission signals in the aggregate and cast-spin film, and the dissymmetry factors (glum) can be up to 6.97 × 10-3 and 1.45 × 10-2, resp. The SEM images further demonstrate that AICPL response behavior of R-/S-P can be attributed to the formation of the supramol. self-assembled helical nanowires in the aggregation state at 90% of the fraction of water (fw). The results came from multiple reactions, including the reaction of (R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3Application of 189518-78-3)

(R)-3,3′-Diiodo-2,2′-bis(methoxymethoxy)-1,1′-binaphthalene(cas: 189518-78-3) belongs to organic iodides. Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. In the chemical industry, alkyl iodides serve as excellent alkylating agents and, specifically, methyl iodide is used as a methylating agent in the synthesis of various pharmaceutical drugs.Application of 189518-78-3

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

The author of 《A Practical, Large-Scale Synthesis of p-(Difluoroiodo)toluene (p-TolIF2)》 were Tao, Jason; Murphy, Graham K.. And the article was published in Synthesis in 2019. Application In Synthesis of 1-Iodo-4-methylbenzene The author mentioned the following in the article:

A detailed three-step synthesis of p-(difluoroiodo)toluene, carried out on a 50 mmol scale, that consistently provided high-quality product that was suitable for long-term storage was described. The reactions employed inexpensive, readily available starting materials and reagents, and used the commodity chem. 48% aqueous HF as the source of fluorine atoms. The results came from multiple reactions, including the reaction of 1-Iodo-4-methylbenzene(cas: 624-31-7Application In Synthesis of 1-Iodo-4-methylbenzene)

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.Application In Synthesis of 1-Iodo-4-methylbenzene

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

The author of 《Teaching an Old Poly(arylene ether) New Tricks: Efficient Blue Thermally Activated Delayed Fluorescence》 were Liu, Xinrui; Rao, Jiancheng; Li, Xuefei; Wang, Shumeng; Ding, Junqiao; Wang, Lixiang. And the article was published in iScience in 2019. Category: iodides-buliding-blocks The author mentioned the following in the article:

Polymer light-emitting diodes are attractive for optoelectronic applications owing to their brightness and ease of processing. However, often metals have to be inserted to increase the luminescence efficiency, and producing blue emitters is a challenge. Here we present a strategy to make blue thermally activated delayed fluorescence (TADF) polymers by directly embedding a small mol. blue TADF emitter into a poly(aryl ether) (PAE) backbone. Thanks to the oxygen-induced negligible electronic communication between neighboring TADF fragments, its corresponding blue delayed fluorescence can be inherited by the developed polymers. These polymers are free from metal catalyst contamination and show improved thermal stability. Through device optimization, a current efficiency of 29.7 cd/A (21.2 lm/W, 13.2%) is realized together with Commission Internationale de L′Eclairage coordinates of (0.18, 0.32). The value is competitive with blue phosphorescent polymers, highlighting the importance of the PAE backbone in achieving high-performance blue delayed fluorescence at a macromol. level. The experimental process involved the reaction of 1-Bromo-4-iodobenzene(cas: 589-87-7Category: iodides-buliding-blocks)

1-Bromo-4-iodobenzene(cas: 589-87-7) is mainly used as the OLED pharmaceutical intermediate, as reagent for in situ desilylation and coupling of silylated alkynes, as substrate in copper-free Sonogashira coupling in aqueous acetone..Category: iodides-buliding-blocks It is also used in synthesis of β,β,dibromostyrenes, as starting reagent in the total syntheses of ent-conduramine A and ent-7-deoxypancratistatin (alkaloids)

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

In 2022,Chen, Jialuo; Duan, Lili; Liu, Kunming; Liu, Jin-Biao published an article in Molbank. The title of the article was 《A Convenient Synthesis towards 2-Bromo-2-(methoxy(phenyl)methyl)malononitrile and 2-Iodo-2-(methoxy(phenyl)methyl)malononitrile》.Name: 1-Iodopyrrolidine-2,5-dione The author mentioned the following in the article:

The synthesis of two novel vicinal haloethers bearing a malonontrile group, 2-bromo-2-(methoxy(phenyl)methyl)malononitrile and 2-iodo-2-(methoxy(phenyl)methyl)malononitrile was reported. The structures of the synthesized compounds were confirmed by 1H, 13C-NMR spectroscopy. The final products indicated that methanol not only acts as solvent but also participates in and dominates the reaction result. The experimental process involved the reaction of 1-Iodopyrrolidine-2,5-dione(cas: 516-12-1Name: 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. Name: 1-Iodopyrrolidine-2,5-dione

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