Tag: M.W=200-250

Zhou, Yue; Zeng, Qingle; Zhang, Li published the artcile< Transition-metal-free synthesis of phenothiazines from S-2-acetamidophenyl ethanethioate and ortho-dihaloarenes>, Related Products of 2265-92-1, the main research area is acetamidophenyl ethanethioate dihaloarene cyclocondensation transition metal free; phenothiazine preparation.

An efficient cesium carbonate-mediated synthesis of phenothiazine derivatives from S-2-acetamidophenyl ethanethioates and ortho-dihaloarenes has been developed. This protocol affords an efficient approach for the construction of phenothiazine derivatives without the need of transition-metal catalyst or ligand. A plausible mechanism is proposed.

Synthetic Communications published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent) (ortho-dihalo). 2265-92-1 belongs to class iodides-buliding-blocks, and the molecular formula is C6H3F2I, Related Products of 2265-92-1.

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

Wang, Hao-Yang; Gao, Ying; Zhang, Fang; Yu, Chong-Tian; Xu, Chu; Guo, Yin-Long published the artcile< Mass Spectrometric Study of the Gas-Phase Difluorocarbene Expulsion of Polyfluorophenyl Cations via F-Atom Migration>, Name: 1,4-Difluoro-2-iodobenzene, the main research area is mass spectrometry polyfluorophenyl cation gas phase difluorocarbene expulsion; fluorine atom migration.

An increasing number of fluorinated drugs, pesticides, and fine chems. are now produced and applied, especially those containing polyfluorinated aromatic moieties. However, at present, the extent of literature covering the special mass spectrometric behaviors of these compounds remains limited. Herein, we report an unexpected but also general gas-phase dissociation mode of polyfluorinated aromatics in mass spectrometry: expulsion of difluorocarbene (50-Da neutral loss). Results from accurate mass measurements, tandem mass spectrometric experiments, and d. functional theory (DFT) calculations support an intramol. F-atom “”ring-walk”” migration mechanism for gas-phase CF2 loss. Based on an assessment of the electron ionization-mass spectrometry (EI-MS) data of more than 40 polyfluorinated aromatic compounds from the National Institute of Standards and Technol. data bank, we generalized on the substitution group effects on the difluorocarbene dissociation process of polyfluorinated aromatic compounds in EI-MS. These studies have enriched our knowledge of the special gas-phase reactivity of polyfluorinated aromatics and will provide valuable information in further anal. research of these compounds by mass spectrometry.

Journal of the American Society for Mass Spectrometry published new progress about Aryl fluorides Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), RCT (Reactant), PROC (Process), RACT (Reactant or Reagent) (polyfluoro arenes). 2265-92-1 belongs to class iodides-buliding-blocks, and the molecular formula is C6H3F2I, Name: 1,4-Difluoro-2-iodobenzene.

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

Yuan, Yang; Wu, Xiao-Feng published the artcile< Direct Access to 1,1-Dicarbonyl Sulfoxonium Ylides from Aryl Halides or Triflates: Palladium-Catalyzed Carbonylation>, Recommanded Product: 1,4-Difluoro-2-iodobenzene, the main research area is palladium catalyst carbonylation aryl halide triflate carbonyl sulfoxonium ylide; dicarbonyl sulfoxonium ylide preparation.

The synthesis of 1,1-dicarbonyl sulfoxonium ylides by palladium-catalyzed carbonylation of aryl halides or triflates with α-carbonyl sulfoxonium ylides has been developed for the first time. This method provides a general approach to synthetically useful 1,1-dicarbonyl sulfoxonium ylides in high efficiency. The protocol displays a wide substrate scope, showing that the resulting 1,1-dicarbonyl sulfoxonium ylides have been converted into the corresponding 1,3-dicarbonyl compounds

Organic Letters published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 2265-92-1 belongs to class iodides-buliding-blocks, and the molecular formula is C6H3F2I, Recommanded Product: 1,4-Difluoro-2-iodobenzene.

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

Dakarapu, Rambabu; Falck, John R. published the artcile< Stereospecific Stille Cross-Couplings Using Mn(II)Cl2>, Application In Synthesis of 887266-99-1, the main research area is manganese chloride stereoselective Stille cross coupling reaction catalyst; organotin aryl iodide stereoselective Stille coupling reaction.

Cross-coupling reactions are a staple in organic synthesis, especially for C-C bond formation with sp- and sp2-carbon electrophiles. In recent years, the range of accessible C-C bonds has been extended to stereogenic centers which expedites access to greater mol. complexity. However, these reactions predominantly depend upon late transition metal (LTM) catalysts whose cost, toxicity, and/or environmental impact have come under increasing scrutiny and governmental regulation. Here, we report Mn(II)Cl2 complexes alone, or with assistance from copper, catalyze the stereospecific cross-coupling of α-alkoxyalkylstannanes with organic electrophiles with complete retention of configuration.

Journal of Organic Chemistry published new progress about Aryl iodides Role: RCT (Reactant), RACT (Reactant or Reagent). 887266-99-1 belongs to class iodides-buliding-blocks, and the molecular formula is C7H3FIN, Application In Synthesis of 887266-99-1.

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

Huang, Shengli; Chen, Zhili; Mao, Hui; Hu, Fangli; Li, Dongmei; Tan, Yu; Yang, Fengqing; Qin, Wenling published the artcile< Metal-free difunctionalization of alkynes to access tetrasubstituted olefins through spontaneous selenosulfonylation of vinylidene ortho-quinone methide (VQM)>, SDS of cas: 2265-92-1, the main research area is selenovinyl sulfone regioselective diastereoselective preparation; alkynylnaphthol selenosulfonylation selenosulfonate.

A metal-free difunctionalization of alkynes to access tetrasubstituted olefins through spontaneous selenosulfonylation of vinylidene ortho-quinone methide (VQM) was described herein. The reaction was conducted under mild conditions without any catalysts or additives. Preliminary mechanism studies revealed that the formation of VQM was the key for this alkyne di-functionalization reaction. The reaction could be applied in the enantioselective asym. synthesis of axially chiral styrene. Furthermore, the selenosulfonylation adducts can be transformed into useful naphtho[2,1-b]furan and benzofuran scaffolds.

Organic & Biomolecular Chemistry published new progress about Alkenes Role: SPN (Synthetic Preparation), PREP (Preparation). 2265-92-1 belongs to class iodides-buliding-blocks, and the molecular formula is C6H3F2I, SDS of cas: 2265-92-1.

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

Taldone, Tony; Patel, Pallav D.; Patel, Hardik J.; Chiosis, Gabriela published the artcile< About the reaction of aryl fluorides with sodium sulfide: investigation into the selectivity of substitution of fluorobenzonitriles to yield mercaptobenzonitriles via SNAr displacement of fluorine>, COA of Formula: C7H3FIN, the main research area is mercaptobenzonitrile synthesis aryl fluoride sulfide substitution.

In this report we describe a simple synthesis of mercaptobenzonitriles from the reaction of fluorobenzonitriles with Na2S in DMF at room temperature and following direct treatment with Zn/HCl. Significantly, 2- and 4-fluorobenzonitriles substituted with chlorine or bromine, but not iodine, undergo selective substitution of fluorine at room temperature to yield synthetically useful halo-substituted mercaptobenzonitriles.

Tetrahedron Letters published new progress about Aromatic substitution reaction. 887266-99-1 belongs to class iodides-buliding-blocks, and the molecular formula is C7H3FIN, COA of Formula: C7H3FIN.

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

Sakurai, Yohji published the artcile< Tandem Sonogashira-Hagihara coupling/cycloisomerization reactions of ethynylboronic acid mida ester to afford 2-heterocyclic boronic acid mida esters: a concise route to benzofurans, indoles, furopyridines and pyrrolopyridines>, COA of Formula: C5H4INO, the main research area is Sonogashira Hagihara coupling cycloisomerization ethynylboronic mida ester; heterocyclic boronic mida preparation conversion benzofuran indole furopyridine pyrrolopyridine.

A one-pot process that provides direct access to 2-heterocyclic MIDA (N-methyliminodiacetic acid) boronates has been developed. The reaction of 2-iodophenols or 2-iodoanilines with ethynylboronic acid MIDA ester readily afforded 2-substituted heterocyclic compounds Amidine and phosphazene bases, especially TMG (1,1,3,3-tetramethylguanidine) assumed an important role in the tandem Sonogashira-Hagihara coupling/cycloisomerization reactions.

Heterocycles published new progress about Benzofurans Role: SPN (Synthetic Preparation), PREP (Preparation). 188057-20-7 belongs to class iodides-buliding-blocks, and the molecular formula is C5H4INO, COA of Formula: C5H4INO.

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

Wang, Lei; Byun, Jeehye; Li, Run; Huang, Wei; Zhang, Kai A. I. published the artcile< Molecular Design of Donor-Acceptor-Type Organic Photocatalysts for Metal-free Aromatic C-C Bond Formations under Visible Light>, Application of C7H3FIN, the main research area is mol Donor Acceptor organic photocatalysts metal free aromatic carbon.

Metal-free and photocatalytic radical-mediated aromatic C-C bond formations offer a promising alternative pathway to the conventional transition metal-catalyzed cross-coupling reactions. However, the formation of aryl radicals from common precursors such as aryl halides is highly challenging due to their extremely high reductive potential. Here, we report a structural design strategy of donor-acceptor-type organic photocatalysts for visible light-driven C-C bond formations through the reductive dehalogenation of aryl halides. The reduction potential of the photocatalysts could be systematically aligned to be -2.04 V vs. SCE via a simple heteroatom engineering of the donor-acceptor moieties. The high reductive potential of the mol. photocatalyst could reduce various aryl halides into aryl radicals to form the C-C bond with heteroarenes. The design ability of the mol. photocatalyst further allowed the synthesis of a high LUMO (LUMO) polymer photocatalyst by a self-initiated free radical polymerization without compromising its LUMO level.

Advanced Synthesis & Catalysis published new progress about Cyclic voltammetry. 887266-99-1 belongs to class iodides-buliding-blocks, and the molecular formula is C7H3FIN, Application of C7H3FIN.

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

Organic iodides are used in veterinary products (Organic Iodide Powder) as a nutritional source of iodine. 1120-90-7, formula is C5H4IN, Name is 3-Iodopyridine. 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 C5H4IN.

Landge, Vinod G.;Bonds, Audrey L.;Mncwango, Thandazile A.;Mather, Carolina B.;Saleh, Yasaman;Fields, Hunter L.;Lee, Frank;Young, Michael C. research published 《 Amine-directed Mizoroki-Heck arylation of free allylamines》, the research content is summarized as follows. The transition metal-catalyzed Mizoroki-Heck reaction is a powerful method to synthesize C-C bonds, allowing access to several important pharmaceuticals. Traditionally free amines have not been compatible with these approaches due to oxidation of the amine by the transition metal or other side reactions. However, the functionalization of unprotected allylamines is particularly attractive due to their prevalence in various biol. active mols. Herein, the palladium-catalyzed selective monoarylation of free allylamines using aryl iodides is reported. The strategy works on primary, secondary, and tertiary amines, making it very general. This monoarylation method is scalable and works on aryl iodides with a variety of substituted arene or heterocycle motifs, including chromophoric substrates.

1120-90-7, 3-Iodopyridine is a heteroaryl halide. It undergoes microwave-assisted coupling with heterocyclic compounds (pyrazole, imidazole, pyrrole and indole) to afford the corresponding N-3-pyridinyl-substituted heterocyclic compounds.

3-Iodopyridine is a useful research chemical used as a reactant in the copper-catalyzed coupling of alkylamines and aryl iodides.

3-Iodopyridine is an isomeric compound that can be synthesized by cross-coupling reactions. This compound has been shown to have nicotinic acetylcholine receptor binding properties and may be useful in the treatment of Alzheimer’s disease. 3-Iodopyridine is a primary amino acid that can be used for the synthesis of amines, which are nitrogen nucleophiles. It has been crystallized with halides and its x-ray structures have been determined. The nmr spectra of 3-iodopyridine show that it contains phosphorus and nitrogen atoms. 3-Iodopyridine is also able to take up nitrate ions from solution, which may be due to its uptake properties., Application of C5H4IN

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

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), 1120-90-7, formula is C5H4IN, Name is 3-Iodopyridine. Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction. Safety of 3-Iodopyridine.

Lee, Jaehee;Ju, Xuan;Lee, Miseon;Jiang, Qi;Jang, Hwanjong;Kim, Wan Shin;Wu, Linglin;Williams, Suja;Wang, Xiao-Jun;Zeng, Xingzhong;Payne, Jenna;Han, Zhengxu S. research published 《 Copper Catalyzed Regioselective and Stereospecific Aziridine Opening with Pyridyl Grignard Nucleophiles》, the research content is summarized as follows. Copper catalyzed regioselective and stereospecific coupling between aziridines and in-situ generated pyridine Grignard reagents was reported. This method provided β-pyridylethylamines with diverse structures and functionalities from aziridines and iodopyridines. The β-pyridylethylamines were potential scaffolds for the synthesis of biol. active compounds often found in pharmaceuticals. The synthesis of challenging chiral dihydroazaindoles was also achieved through mild one-pot reaction conditions via aziridine opening followed by nucleophilic cyclization.

Safety of 3-Iodopyridine, 3-Iodopyridine is a heteroaryl halide. It undergoes microwave-assisted coupling with heterocyclic compounds (pyrazole, imidazole, pyrrole and indole) to afford the corresponding N-3-pyridinyl-substituted heterocyclic compounds.

3-Iodopyridine is a useful research chemical used as a reactant in the copper-catalyzed coupling of alkylamines and aryl iodides.

3-Iodopyridine is an isomeric compound that can be synthesized by cross-coupling reactions. This compound has been shown to have nicotinic acetylcholine receptor binding properties and may be useful in the treatment of Alzheimer’s disease. 3-Iodopyridine is a primary amino acid that can be used for the synthesis of amines, which are nitrogen nucleophiles. It has been crystallized with halides and its x-ray structures have been determined. The nmr spectra of 3-iodopyridine show that it contains phosphorus and nitrogen atoms. 3-Iodopyridine is also able to take up nitrate ions from solution, which may be due to its uptake properties., 1120-90-7.

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