Month: October 2022

Yang, Jin; Sun, Bin; Ding, Hao; Huang, Pan-Yi; Tang, Xiao-Li; Shi, Rong-Cheng; Yan, Zhi-Yang; Yu, Chuan-Ming; Jin, Can published the artcile< Photo-triggered self-catalyzed fluoroalkylation/cyclization of unactivated alkenes: synthesis of quinazolinones containing the CF2R group>, Computed Properties of 20776-50-5, the main research area is alkenyl quinazolinone fluoroalkyl bromide tandem photochem fluoroalkylation radical cyclization; fluoroalkyl fused quinazolinone preparation green chem.

A novel photo-triggered self-catalyzed fluoroalkylation/cyclization of quinazolinones containing unactivated alkenes with various fluoroalkyl bromides was developed. This transformation exhibited excellent substrate generality with respect to both the coupling partners. This was the first example describing the Csp3-Br bond homolysis of alkyl bromides via a substrate (quinazolinones) induced energy transfer process. Addnl., the mild conditions, tolerance to a wide range of functional groups and operational simplicity make this protocol practical for the synthesis of fluorine-containing ring-fused quinazolinones.

Green Chemistry published new progress about Acetamides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 20776-50-5 belongs to class bromides-buliding-blocks, and the molecular formula is C7H6BrNO2, Computed Properties of 20776-50-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Shang, Yong; Wu, Chenggui; Gao, Qianwen; Liu, Chang; Li, Lisha; Zhang, Xinping; Cheng, Hong-Gang; Liu, Shanshan; Zhou, Qianghui published the artcile< Diversity-oriented functionalization of 2-pyridones and uracils>, Product Details of C8H6BrFO2, the main research area is alkyl pyridone aryl preparation; aryl thymine alkyl preparation; pyridone alkyl halide alkene alkylation; alkene aryl halide pyridone arylation.

A palladium/norbornene cooperative catalysis enabled dual-functionalization of iodinated 2-pyridones I (R = H, Me, Bn, mesityl, MOM, PMB; R1 = CH3, F, Cl, CH2OCH3, CH2C(O)2CH3, 4-ethoxy-4-oxobutyl) and uracils like 6-iodo-1,3-bis(phenylmethyl)-2,4(1H,3H)-pyrimidinedione and 5-iodo-1,3-bis(phenylmethyl)-2,4(1H,3H)-pyrimidinedione. The success of this research depends on the use of two unique norbornene derivatives as the mediator. Readily available alkyl halides R2X (R2 = Me, 4-ethoxy-4-oxobutyl, Bn, etc.; X = Br, I)/tosylate like Me tosylate and aryl bromides R2Br are utilized as ortho-alkylating and -arylating reagents, resp. Widely accessible ipso-terminating reagents, including H/DCO2Na, boronic acid like methylboronic acid/ester like pinacol phenylboronate, terminal alkene R3CH=CH2 (R3 = CH3, CH=CHC6H5, CH=CH2, etc.) and alkyne like triisopropylsilylethyne are compatible with this protocol. Thus, a large number of valuable 2-pyridone derivatives, II including deuterium/CD3-labeled 2-pyridones, bicyclic 2-pyridones, 2-pyridone-fenofibrate conjugate, axially chiral 2-pyridone (97% ee), as well as uracil and thymines III and 1,3-dibenzyl-6-methyl-5-((triisopropylsilyl)ethynyl)pyrimidine-2,4(1H,3H)-dione can be quickly prepared in a predictable manner (79 examples reported), which will be very useful in new drug discovery.

Nature Communications published new progress about Alkenes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 6942-39-8 belongs to class bromides-buliding-blocks, and the molecular formula is C8H6BrFO2, Product Details of C8H6BrFO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Valero, Guillem; Schimer, Jiri; Cisarova, Ivana; Vesely, Jan; Moyano, Albert; Rios, Ramon published the artcile< Highly enantioselective organocatalytic synthesis of piperidines. Formal synthesis of (-)-paroxetine>, SDS of cas: 3893-18-3, the main research area is malonmonoamide unsaturated aldehyde stereoselective cyclization secondary amine catalyst; piperidinone asym synthesis; paroxetine asym formal synthesis.

A highly enantioselective organocatalytic synthesis of piperidines is reported starting from protected malonmonoamides and α,β-unsaturated aldehydes. The reaction is catalyzed by simple and com. available secondary amines, affording the corresponding adducts with high yields and enantioselectivities. Moreover, this reaction is used for the formal synthesis of (-)-paroxetine, a blockbuster drug, in only 3 steps.

Tetrahedron Letters published new progress about Cyclization catalysts, stereoselective. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, SDS of cas: 3893-18-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Singh, Puspendra; Singh, Priyanka; Shabbani, Gulam; Butcher, Ray J. published the artcile< Synthesis and single crystal X-ray studies of dimesityl ditelluride: [2,4,6-Me3C6H2Te]2>, Product Details of C9H11Br, the main research area is mesityl ditelluride preparation crystal structure supramol synthon.

The reaction of freshly prepared mesityl magnesium bromide with tellurium powder in anhydrous THF provided the dimesityl ditelluride: [2,4,6-Me3C6H2Te]2. A suitable needle- shaped crystal of dimesityl ditelluride was developed by evaporation of a solution in chloroform. The Te compound was developed with the orthorhombic space group Iba2 with a = 15.2916(7) Å, b = 15.7225(7) Å, c = 14.5272(7) Å and α, β,γ = 90°. The geometry about the central tellurium atoms adopt a bent-shaped geometry with torsion angle C10-Te2-Te1- C1 = 87.0(3)° and this may be considered a cisoid conformation. Intermol. C-H…·Te interactions give rise to a two-dimensional supramol. synthons in its crystalline state. The crystal packing diagram shows Te….H [Te1…·H5A, 3.2557(5) Å & Te1…·H8C, 3.2578(5) Å] hydrogen-bonding interactions which are responsible for associative forces.

Journal of Physics: Conference Series published new progress about Bond angle, torsional. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Product Details of C9H11Br.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Katkova, Svetlana A.; Mikherdov, Alexander S.; Sokolova, Elina V.; Novikov, Alexander S.; Starova, Galina L.; Kinzhalov, Mikhail A. published the artcile< Intermolecular (Isocyano group)···PtII interactions involving coordinated isocyanides in cyclometalated PtII complexes>, Application of C6H4BrClFN, the main research area is platinum isocyanide cyclometalated complex preparation crystal structure DFT luminescence.

A series of platinum(II) isocyanide complexes [Pt(ppy)Cl(CNR)] (ppy = 2-phenylpyridinato-C2,N; R = Mes 1, C6H2-2,6-Me2-4-Br 2, C6H2-2-F-3-Cl-4-Br 3, naphthalen-2-yl 4) were prepared and characterized by high resolution ESI-MS, 1D and 2D NMR, IR, UV-visible absorption, and photoluminescence spectroscopies, as well as single-crystal x-ray diffraction. Anal. of x-ray diffraction data allowed the authors to identify (isocyano group)···PtII interactions where the nitrogen atom of the isocyano group acts as a π-hole donor toward a d2z-orbital of PtII. The presence of these noncovalent interactions was confirmed by DFT calculations followed by NCI anal. and topol. anal. of the electron d. distribution within the framework of Bader’s theory (QTAIM method). Processing of CSD data allowed verification of the contacts between coordinated isocyano moieties and various d9 and d8- metal-centers (AuI, AuIII, AgI, PtII, PdII, NiII, RhI) to be performed.

Journal of Molecular Structure published new progress about Crystal structure. 115843-99-7 belongs to class bromides-buliding-blocks, and the molecular formula is C6H4BrClFN, Application of C6H4BrClFN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Hassaballah, Aya I.; Ramadan, Sayed K.; Rizk, Sameh A.; El-Helw, Eman A. E.; Abdelwahab, Salwa S. published the artcile< Ultrasonic Promoted Regioselective Reactions of the Novel Spiro 3,1-Benzoxazon-Isobenzofuranone Dye Toward Some Organic Base Reagents>, Synthetic Route of 82-73-5, the main research area is spiro benzoxazinone isobenzofuranone nucleophile electrophile multicomponent reaction regioselective ultrasonic; antitumor antibacterial antifungal activity human green chem.

4′-Bromo-3′H-spiro[benzo[d][1,3]-oxazine-2,1′-isobenzofuran]-3′,4(1H)-dione dye is prepared via condensation of 2-aminobenzoic acid with 4-bromoisobenzofuran-1,3-dione under Ultrasonic, solvent-free and basic reaction conditions. The spiro product exhibited both electrophilic and nucleophilic centers. A series of nitrogen nucleophiles such as hydrazine, glycine, 2-aminopyridine, pyridin-2-ylmethanamine, 4-methoxyaniline, 4-aminoacetophenone, morpholine, piperidine or 1-ethylpiperazine and carbon electrophiles such as (chloromethyl)oxirane, Et chloroacetate, chloroacetyl chloride can be treated with 2-benzoxazine-2-yl benzoic acid (BBA) via multicomponent reaction. The fluorescence of the spiro product dyes decreases proportionally to the initial chloride concentration in the solution The chem. structures of the synthesized compounds can be confirmed by microanal., spectral data and optimized by quantum chem. parameters. Biol. evaluation showed that these synthesized spiro compounds exhibited moderate to good cytotoxic activity. Among them, compounds and displayed the best cytotoxic activity against MCF7 and Wl-38 cell lines.

Polycyclic Aromatic Compounds published new progress about Antibacterial agents. 82-73-5 belongs to class bromides-buliding-blocks, and the molecular formula is C8H3BrO3, Synthetic Route of 82-73-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary