Category: iodides-buliding-blocks

Isbrandt, Eric S.; Nasim, Amrah; Zhao, Karen; Newman, Stephen G. published their research in Journal of the American Chemical Society in 2021. The article was titled 《Catalytic Aldehyde and Alcohol Arylation Reactions Facilitated by a 1,5-Diaza-3,7-diphosphacyclooctane Ligand》.Related Products of 90-14-2 The article contains the following contents:

A catalytic method to access secondary alcs. by the coupling of aryl iodides was reported. Either aldehydes or alcs. can be used as reaction partners, making the transformation reductive or redox-neutral, resp. The reaction was mediated by a Ni catalyst and a 1,5-diaza-3,7-diphosphacyclooctane. This P2N2 ligand, which was previously been unrecognized in cross-coupling and related reactions, was found to avoid deleterious aryl halide reduction pathways that dominate with more traditional phosphines and NHCs. An interrupted carbonyl-Heck type mechanism was proposed to be operative, with a key 1,2-insertion step forging the new C-C bond and forming a nickel alkoxide that may be turned over by an alc. reductant. The same catalyst was also found to enable synthesis of ketone products from either aldehydes or alcs., demonstrating control over the oxidation state of both the starting materials and products. The results came from multiple reactions, including the reaction of 1-Iodonaphthalene(cas: 90-14-2Related Products of 90-14-2)

1-Iodonaphthalene(cas: 90-14-2) is one of 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. Oceanic alkyl iodides are believed to be the principal source of atmospheric iodine.Related Products of 90-14-2

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

《Synthesis of All-Carbon Disubstituted Bicyclo[1.1.1]pentanes by Iron-Catalyzed Kumada Cross-Coupling》 was published in Angewandte Chemie, International Edition in 2020. These research results belong to Nugent, Jeremy; Shire, Bethany R.; Caputo, Dimitri F. J.; Pickford, Helena D.; Nightingale, Frank; Houlsby, Ian T. T.; Mousseau, James J.; Anderson, Edward A.. Category: iodides-buliding-blocks The article mentions the following:

1,3-Disubstituted bicyclo[1.1.1]pentanes (BCPs) are important motifs in drug design as surrogates for p-substituted arenes and alkynes. Access to all-carbon disubstituted BCPs via cross-coupling has to date been limited to use of the BCP as the organometallic component, which restricts scope due to the harsh conditions typically required for the synthesis of metalated BCPs. Here the authors report a general method to access 1,3-C-disubstituted BCPs from 1-iodo-bicyclo[1.1.1]pentanes (iodo-BCPs) by direct iron-catalyzed cross-coupling with aryl and heteroaryl Grignard reagents. This chem. represents the first general use of iodo-BCPs as electrophiles in cross-coupling, and the first Kumada coupling of tertiary iodides. Benefiting from short reaction times, mild conditions, and broad scope of the coupling partners, it enables the synthesis of a wide range of 1,3-C-disubstituted BCPs including various drug analogs. The experimental process involved the reaction of tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3Category: iodides-buliding-blocks)

tert-Butyl 4-iodopiperidine-1-carboxylate(cas: 301673-14-3) is one of 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. Oceanic alkyl iodides are believed to be the principal source of atmospheric iodine.Category: iodides-buliding-blocks

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

The author of 《Pendant Photochromic Conjugated Polymers Incorporating a Highly Functionalizable Thieno[3,4-b]thiophene Switching Motif》 were Peters, Garvin M.; Tovar, John D.. And the article was published in Journal of the American Chemical Society in 2019. SDS of cas: 624-73-7 The author mentioned the following in the article:

The ability to externally modulate conjugated polymer optoelectronic properties is an important challenge for modern organic electronics. One attractive approach entails the incorporation of stimuli-responsive mol. systems, such as diarylethenes, into polymeric materials. Our approach involves the design of polymers possessing photochromic moieties pendant to the main conjugated chain to allow for electronic influence along the polymer backbone while avoiding substantial conformational demands that may affect solid-state performance. Herein, we report the synthesis of a series of thieno[3,4-b]thiophene (TT)-based photochromes that demonstrate drastically different optoelectronic properties upon cyclization. Exptl. and computational investigations of aryl-extended model compounds provided crucial insight on the interplay between electronic structure and photochromic activity, thus allowing for the realization of pendant photoswitchable conjugated copolymers that reflect the activity found in the related model systems.1,2-Diiodoethane(cas: 624-73-7SDS of cas: 624-73-7) was used in this study.

1,2-Diiodoethane(cas: 624-73-7) is one of 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. Organic iodides can be alkyl, alkenyl, or alkynyl, and all of them are very reactive toward with many kinds of nucleophiles.SDS of cas: 624-73-7

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

The author of 《Orthogonal Nanoparticle Catalysis with Organogermanes》 were Fricke, Christoph; Sherborne, Grant J.; Funes-Ardoiz, Ignacio; Senol, Erdem; Guven, Sinem; Schoenebeck, Franziska. And the article was published in Angewandte Chemie, International Edition in 2019. Computed Properties of C7H7I The author mentioned the following in the article:

Although nanoparticles are widely used as catalysts, little is known about their potential ability to trigger privileged transformations as compared to homogeneous mol. or bulk heterogeneous catalysts. The authors herein demonstrate (and rationalize) that nanoparticles display orthogonal reactivity to mol. catalysts in the cross-coupling of aryl halides with aryl germanes. While the aryl germanes are unreactive in LnPd0/LnPdII catalysis and allow selective functionalization of established coupling partners in their presence, they display superior reactivity under Pd nanoparticle conditions, outcompeting established coupling partners (such as ArBPin and ArBMIDA) and allowing air-tolerant, base-free, and orthogonal access to valuable and challenging biaryl motifs. As opposed to the notoriously unstable polyfluoroaryl- and 2-pyridylboronic acids, the corresponding germanes are highly stable and readily coupled. The authors’ mechanistic and computational studies provide unambiguous support of nanoparticle catalysis and suggest that owing to the electron richness of aryl germanes, they preferentially react by electrophilic aromatic substitution, and in turn are preferentially activated by the more electrophilic nanoparticles. After reading the article, we found that the author used 1-Iodo-4-methylbenzene(cas: 624-31-7Computed Properties of 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.Computed Properties of C7H7I

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

The author of 《Biosynthesis of Pd/MnO2 nanocomposite using Solanum melongena plant extract and its application for the one-pot synthesis of 5-substituted 1H-tetrazoles from aryl halides》 were Nasrollahzadeh, Mahmoud; Ghorbannezhad, Fatemeh; Sajadi, S. Mohammad. And the article was published in Applied Organometallic Chemistry in 2019. Electric Literature of C5H4IN The author mentioned the following in the article:

In this work, for the first time, Solanum melongena plant extract was used for the green synthesis of Pd/MnO2 nanocomposite via reduction of Pd(II) ions to Pd(0) and their immobilization on the surface of manganese dioxide (MnO2) nanoparticles (NPs) as an effective support. The synthesized nanocomposite was characterized by various anal. techniques such as Fourier transform IR (FT-IR), X-ray diffraction (XRD), transmission electron microscopy (TEM), field emission SEM (FESEM), energy dispersive X-ray spectroscopy (EDS), and UV-Vis spectroscopy. Pd/MnO2 nanocomposite was used as a heterogeneous catalyst for the one-pot synthesis of 5-substituted 1H-tetrazoles from aryl halides containing various electron-donating or electron-withdrawing groups in the presence of K4[Fe(CN)6] as non-toxic cyanide source and sodium azide. The products were obtained in good yields via a simple methodol. and easy work-up. The nanocatalyst can be recycled and reused several times with no remarkable loss of activity. The results came from multiple reactions, including the reaction of 4-Iodopyridine(cas: 15854-87-2Electric Literature of C5H4IN)

4-Iodopyridine(cas: 15854-87-2) is used as a reagent in the synthesis of indazolylamides as glucocorticoid receptor agonists. 4-Iodopyridine is a halogenated heterocycle that is a building block for proteomics research.Electric Literature of C5H4IN

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