Month: November 2022

Zhang, Wei published the artcilePalladium-Catalyzed Aromatic C-H Bond Nitration Using Removable Directing Groups: Regiospecific Synthesis of Substituted o-Nitrophenols from Related Phenols, Application In Synthesis of 21784-73-6, the main research area is pyridinyloxyphenol regiospecific nitration palladium catalyst; nitrophenol preparation.

A general and regiospecific transformation of substituted phenols into the related o-nitrophenols has been achieved via a three-step process involving the palladium-catalyzed chelation-assisted ortho-C-H bond nitration as the key step. In the process, 2-pyridinyloxy groups act as removable directing groups for the palladium-catalyzed ortho-nitration of substituted 2-phenoxypridines, and they can be readily removed in the subsequent conversion of the resulting 2-(2-nitrophenoxy)pyridines into 2-nitrophenols.

Journal of Organic Chemistry published new progress about Nitration catalysts (regiospecific). 21784-73-6 belongs to class iodides-buliding-blocks, name is 4-Iodo-2-nitrophenol, and the molecular formula is C6H4INO3, Application In Synthesis of 21784-73-6.

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

Lai, Yu-Ying published the artcileSynthesis, Molecular and Photovoltaic Properties of an Indolo[3,2-b]indole-Based Acceptor-Donor-Acceptor Small Molecule, Application In Synthesis of 105752-04-3, the main research area is conjugated polymer indoloindole acceptor donor synthesis photovoltaic property; heterojunction solar cell indoloindole acceptor donor photovoltaic property.

Indolo[3,2-b]indole, containing two fused indole units, is an unexplored but promising electron-rich mol. for constructing donor-acceptor materials due to its planar, sym., and extended conjugated structure. A new synthetic pathway is successfully developed to prepare 2,7-diboronic ester-indolo[3,2-b]indole, which was then reacted with dithienodiketopyrrolo-pyrrole acceptor to afford a new acceptor-donor-acceptor (A-D-A) conjugated mol., 2,7-bis(dithienodiketopyrrolo-pyrrole)indolo[3,2-b]indole (2,7-DPPIIDPP). II is used to stand for indolo[3,2-b]indole in order to emphasize that this compound is constructed from two indole units. The A-D-A linkage through the 2,7-positions of II not only preserves the phenylene units in the para-conjugation but also renders stronger electron-donating strength. This material exhibited good thermal stability, high crystallinity, and broad UV/Vis absorption. The solution-processed bulk heterojunction device using the configuration of ITO/PEDOT:PSS/2,7-DPPIIDPP:PC71BM/Ca/Al exhibited a Voc of 0.72 V, a Jsc of 6.88 mA/cm2, and an FF of 49.6%, leading to a power conversion efficiency (PCE) of 2.45%.

European Journal of Organic Chemistry published new progress about Heterojunction semiconductor devices. 105752-04-3 belongs to class iodides-buliding-blocks, name is 4-Iodo-3-nitroaniline, and the molecular formula is C6H5IN2O2, Application In Synthesis of 105752-04-3.

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

Jin, Zuxi published the artcileSynthesis and properties of novel phenylethynyl-containing organodisulfide as cathode material for secondary lithium batteries, Formula: C10H13I, the main research area is synthesis property phenylethynyl containing organodisulfide cathode secondary lithium battery.

A novel phenylethynyl-containing conjugative organodisulfide compound 9-trimethylsilane-ethynyl-5,8-dihydro-lH,4H-2,3,6,7-tetrathia-anthracene (TMSEDTTA) was synthesized by a facile preparation method, characterized by elemental anal., FTIR spectroscopy (FTIR), Raman spectrum, XPS, and TGA, and was tested as cathode active material in rechargeable Li batteries. The electrochem. properties of S-S bonds redox behavior in the organodisulfides were studied in 1.0 M LiClO4/EC/DMC (1:1, volume/volume) solution The system has many advantages, such as high theor. charge d. (∼365 mAh g-1), fast redox process and enhanced reversibility. The fast redox process and enhanced reversibility are due to the intramol. cleavage-recombination of the S-S bond, and the intramol. electrocatalytic effect of phenylethynyl chain. The cyclic voltammogram of TMSEDTTA shows multiple redox peaks. The separation of the anodic and cathodic peak potentials for disulfide bond in TMSEDTTA is 0.4 V. The charge-discharge tests show an initial capacity of 330 mAh g-1 and the coulomb efficiency of >80% after the electrochem. activation.

Journal of Applied Electrochemistry published new progress about Battery cathodes (charging-discharging of). 2100-25-6 belongs to class iodides-buliding-blocks, name is 3-Iodo-1,2,4,5-tetramethylbenzene, and the molecular formula is C10H13I, Formula: C10H13I.

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

Kanosue, Kenta published the artcilePolyimides with Heavy Halogens Exhibiting Room-Temperature Phosphorescence with Very Large Stokes Shifts, SDS of cas: 2100-25-6, the main research area is polyimide heavy halogen exhibiting room temperature phosphorescence Stokes shift.

Semiarom. polyimides (PIs) and imide compounds containing heavy halogens (Br, I) in pyromellitic moieties were designed and synthesized to examine their photoluminescence properties. Solutions of imides and PI films exhibited reddish-color room-temperature phosphorescence (RTP) with very large Stokes shifts (ca. 10000 cm-1). In addition, the PI films showed small-Stokes-shifted fluorescence emissions at around 540 nm with absorption bands arising from aggregated PI chains at 400-500 nm. Enhanced phosphorescence observed for the PI films under vacuum indicates that the RTP lifetime is significantly influenced by the triplet-triplet energy transfer to atm. oxygen. These PIs with very-large-Stokes-shifted RTP are applicable as spectral conversion materials in displays, photovoltaic devices, and crop cultivators, as well as to oxygen/air sensors.

ACS Macro Letters published new progress about Electronic energy transfer, triplet-triplet. 2100-25-6 belongs to class iodides-buliding-blocks, name is 3-Iodo-1,2,4,5-tetramethylbenzene, and the molecular formula is C10H13I, SDS of cas: 2100-25-6.

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

Cheng, Dachen published the artcileSynthetic Entries to Substituted Bicyclic Pyridones, Product Details of C5H2F2IN, the main research area is bicyclic pyridone synthesis; Mitsunobu cyclodehydration bicyclic pyridone synthesis; Suzuki coupling bicyclic pyridone synthesis; imidazopyridinone pyridopyrimidinone pyridodiazepinone synthesis.

The synthesis of 6,6- and 5,6-bicyclic pyridone scaffolds (e.g. 2,3-dihydro-1-benzylimidazo[1,2-a]pyridin-5-one, 1,2,3,4-tetrahydro-6H-pyrido[1,2-a]pyrimidin-6-one and 1-benzyl-2,3,4,5-tetrahydropyrido[1,2-a][1,3]diazepin-7-one) was completed using (i) an intramol. Mitsunobu reaction and/or (ii) hydrolysis of a bicyclic pyridinium salt intermediate. Regioselective functionalization of the pyridone ring was achieved via either direct lithiation or use of the halogen dance reaction. Suzuki coupling then allows introduction of aryl units at C(7)/C(9) or C(8) onto the bicyclic pyridone scaffold at either an early or late stage in the synthetic sequence. Suzuki couplings involving iodopyridinium intermediates are particularly effective.

Organic Letters published new progress about Cyclocondensation reaction, intramolecular (Mitsunobu). 685517-67-3 belongs to class iodides-buliding-blocks, name is 2,6-Difluoro-3-iodopyridine, and the molecular formula is C5H2F2IN, Product Details of C5H2F2IN.

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

Chen, Jiajia published the artcileAmide/Ester Cross-Coupling via C-N/C-H Bond Cleavage: Synthesis of β-Ketoesters, COA of Formula: C11H11IO3, the main research area is ketoester preparation chemoselective; amide enolizable ester cross coupling bond cleavage.

Activated primary, secondary, and tertiary amides RC(O)N(Ts)C6H5(R = Ph, n-Pr, c-hex, etc.) were coupled with enolizable esters R1CH2C(O)OR2 (R1 = H, Me, Et; R2 = Et, Ph, t-Bu, etc.) in the presence of LiHMDS to obtain good yields of β-ketoesters RC(O)CH(R1)C(O)OR2 at room temperature Notably, this protocol provides an efficient, mild, and high chemoselectivity method for synthesis of β-alkylketoesters using the cross-coupling between aliphatic amides and esters. Meanwhile, gram-scale secondary and primary amides reacted via in situ generated activated tertiary amides and exhibited good reactivity when coupled with esters.

Journal of Organic Chemistry published new progress about Amides Role: RCT (Reactant), RACT (Reactant or Reagent). 63131-30-6 belongs to class iodides-buliding-blocks, name is Ethyl 3-(4-iodophenyl)-3-oxopropanoate, and the molecular formula is C11H11IO3, COA of Formula: C11H11IO3.

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

Sohmiya, Hajime published the artcileSolid-state organic reactions proceeding by pulverization of inorganic solid-supports. Reactions of iodosobenzene with unsaturated hydrocarbons on acid-treated silica gel, Application of 3-Iodo-1,2,4,5-tetramethylbenzene, the main research area is hydrocarbon unsaturated halogenation oxidation solid state; solid state organic reaction; iodosobenzene reaction alkene acid silica gel; silica gel hydrohalogenated reaction alkene iodosobenzene.

Pulverization of solid mixtures of hydrogen halide-treated silica gels, PhIO, and alkenes or an alkyne in the absence of a solvent causes smooth and rapid reaction to give halogenated or oxidized products in good yields. Thus, treating trans-PhCH:CHPh with HCl-treated silica gel and PhIO in the solid state gives meso- and dl-PhCCl:CClPh in 65% overall yield.

Chemistry Letters published new progress about Alkenes Role: RCT (Reactant), RACT (Reactant or Reagent). 2100-25-6 belongs to class iodides-buliding-blocks, name is 3-Iodo-1,2,4,5-tetramethylbenzene, and the molecular formula is C10H13I, Application of 3-Iodo-1,2,4,5-tetramethylbenzene.

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

Wang, Zhen-Yu published the artcileTerminal C(sp3)-H alkylation of internal alkenes via Ni/H-catalyzed isomerization, HPLC of Formula: 939759-26-9, the main research area is internal alkene alkyl aryl halide terminal alkylation isomerization nickel.

An efficient nickel-catalyzed reductive relay cross-coupling of internal alkenes with alkyl (or aryl) halides has been developed. This method has demonstrated broad substrate scope, mild reaction conditions and excellent terminal-selectivity. Moreover, this efficient strategy could be applied to the terminal-selective alkylation of isomeric mixtures of internal alkenes.

Tetrahedron Letters published new progress about Alkenes Role: RCT (Reactant), RACT (Reactant or Reagent). 939759-26-9 belongs to class iodides-buliding-blocks, name is Benzyl 3-iodoazetidine-1-carboxylate, and the molecular formula is C11H12INO2, HPLC of Formula: 939759-26-9.

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

Cai, Jialing published the artcileAccess to functionalized thienopyridines via a reagent-capsule-assisted coupling, thiolation and cyclization cascade sequence, Safety of 2-Fluoro-3-iodo-5-methylpyridine, the main research area is thienopyridine furopyridine green preparation; iodopyridine terminal alkyne reagent capsule cascade coupling thiolation cyclization.

Synthesis of functionalized thienopyridines e.g., I [R1 = H, 5-Me, 5-Cl; R2 = Ph, 3-thienyl, cyclopentyl, etc.] via palladium-catalyzed cross-coupling of ortho-fluorinated iodopyridines and terminal alkynes, followed by a reagent-capsule-assisted thiolation and cyclization sequence was reported. The use of paraffin wax capsules prevented catalyst poisoning and undesired side reactions and the separation and purification processes were also reduced. This coupling and cyclization method displayed broad substrate scope, good tolerance of functional groups and gives moderate to good yields under mild conditions. Further, 2-arylfuro[2,3-b]pyridines were also prepared by using this methodol.

Organic & Biomolecular Chemistry published new progress about Alkynes, α- Role: RCT (Reactant), RACT (Reactant or Reagent). 153034-78-7 belongs to class iodides-buliding-blocks, name is 2-Fluoro-3-iodo-5-methylpyridine, and the molecular formula is C6H5FIN, Safety of 2-Fluoro-3-iodo-5-methylpyridine.

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

Liu, Zhenwei published the artcilePalladium-Catalyzed Hiyama Cross-Couplings of Arylsilanes with 3-Iodoazetidine: Synthesis of 3-Arylazetidines, Application In Synthesis of 939759-26-9, the main research area is arylazetidine preparation palladium catalyzed Hiyama cross coupling; cross coupling arylsilane iodoazetidine.

The first palladium-catalyzed Hiyama cross-coupling reactions of arylsilanes with 3-iodoazetidine were described. The protocol provides a convenient access to a variety of useful 3-arylazetidines which are of great interest in pharmaceutical laboratories in moderate to good yields (30%-88%). In addition, this strategy has the advantage of easy operation and mild reaction conditions.

Journal of Organic Chemistry published new progress about Aryl silanes Role: RCT (Reactant), RACT (Reactant or Reagent). 939759-26-9 belongs to class iodides-buliding-blocks, name is Benzyl 3-iodoazetidine-1-carboxylate, and the molecular formula is C11H12INO2, Application In Synthesis of 939759-26-9.

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