Tag: M.W=100-150

Ke, Jie published the artcileHydrodehalogenation of Aryl Halides through Direct Electrolysis, Related Products of isoquinoline, the main research area is aryl halide electrolysis hydrodehalogenation trialkylamine catalyst free; benzene preparation; electrochemistry; hydrodehalogenation; metal-free synthesis; organic halides; trialkylamines.

A catalyst- and metal-free electrochem. hydrodehalogenation of aryl halides is disclosed. Our reaction by a flexible protocol is operated in an undivided cell equipped with an inexpensive graphite rod anode and cathode. Trialkylamines nBu3N/Et3N behave as effective reductants and hydrogen atom donors for this electrochem. reductive reaction. Various aryl and heteroaryl bromides worked effectively. The typically less reactive aryl chlorides and fluorides can also be smoothly converted. The utility of our method is demonstrated by detoxification of harmful pesticides and hydrodebromination of a dibrominated biphenyl (analogs of flame-retardants) in gram scale.

Chemistry – A European Journal published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lamola, Jairus L. published the artcileEvaluation of P-bridged biaryl phosphine ligands in palladium-catalyzed Suzuki-Miyaura cross-coupling reactions, Product Details of C8H10O2, the main research area is phosphacyclic ligand preparation; biaryl preparation; aryl halide phenylboronic acid Suzuki Miyaura coupling palladium catalyst.

A family of biaryl phosphacyclic ligands derived from phobane and phosphatrioxa-adamantane frameworks was described. The rigid biaryl phosphacycles were efficient for synthesis of biaryls ArAr1 [Ar = 3-MeC6H4, 2-naphthyl, 2-thienyl, etc.; Ar1 = Ph, 2-MeC6H4, 2,6-di-MeC6H3] via palladium-catalyzed Suzuki-Miyaura cross-coupling of aryl bromides/chlorides with phenylboronic acids. In particular, coupling reactions of the challenging sterically hindered and heterocyclic substrates were viable at room temperature

RSC Advances published new progress about Aryl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Product Details of C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kori, Santosh published the artcileRoom temperature HFIP/Ag-promoted palladium-catalyzed C-H functionalization of benzothiazole with iodoarenes, HPLC of Formula: 151-10-0, the main research area is aryl benzothiazole preparation; benzothiazole iodoarene arylation palladium catalyst.

A versatile synthetic protocol involving the room temperature direct arylation of benzothiazoles I (R = H, Me, Cl, F) with a wide variety of iodoarenes R1I (R1 = C6H5, 4-ClC6H4, 2-naphthyl, etc.) under Ag-promoted Pd-catalyzed conditions in HFIP as the reaction solvent has been presented. A sequential HFIP-promoted selective iodination of arenes followed by Pd-catalyzed direct arylation of benzothiazoles I has also been disclosed. The utility of the developed protocol has been demonstrated by the synthesis of anti-tumor agents II, PMX-610 and CJM-126 (precursor).

Chemical Communications (Cambridge, United Kingdom) published new progress about Aryl iodides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, HPLC of Formula: 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Uyanik, Muhammet published the artcileHypoiodite-catalysed oxidative homocoupling of arenols and tandem oxidation/cross-coupling of hydroquinones with arenes, Related Products of isoquinoline, the main research area is biarenol biquinone preparation; arenol oxidative homocoupling hypoiodite catalyst; aryl quinone preparation; hydroquinone arene tandem oxidation coupling hypoiodite catalyst.

The hypoiodite-catalyzed oxidative C-C homocoupling of arenols to biarenols or biquinones using aqueous hydrogen peroxide as an oxidant was reported. In addition, by combining hypoiodite catalysis and lipophilic Lewis acid-assisted Bronsted acid catalysis under aqueous conditions, a tandem oxidation/cross-coupling reaction of hydroquinones with electron-rich arenes was achieved. These results highlighted the substantial scope of hypoiodite/acid co-catalysis for use in oxidative coupling reactions.

Chemical Communications (Cambridge, United Kingdom) published new progress about Biaryls Role: SPN (Synthetic Preparation), PREP (Preparation). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jiao, Jing published the artcileIodine-Promoted Metal-Free Cyclization and O/S Exchange of Acrylamides with Thiuram: One-Step Synthesis of Quinolino-2-thiones, Quality Control of 5961-59-1, the main research area is quinolinothione one step synthesis; acrylamide thiuram cyclization.

A one-step cyclization and O/S exchange reaction of readily available acrylamides in the presence of iodine and thiuram has been developed. The reaction provides an efficient approach for the synthesis of highly important heterocycle quinolino-2-thiones with diverse substitution patterns.

Journal of Organic Chemistry published new progress about Acrylamides Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Quality Control of 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Ming-Zhong published the artcileMetal-free iodic acid-triggered cascade cyclization of alkenes with N-hydroxyphthalimide: A simple and mild access to aminooxylated 3,3-disubstituted 2-oxindoles, Name: 4-Methoxy-N-methylaniline, the main research area is arylacrylamide hydroxyphthalimide hydroxy succinimide iodic acid green radical cyclization; oxindole preparation.

An efficient iodic acid-triggered radical cyclization of alkenes with N-hydroxyphthalimide (NHPI) was described. This operationally simple method was conducted under metal- and catalyst-free conditions, producing the precious aminooxylated 3,3-disubstituted 2-oxindoles in good to high yields. Green and readily available HIO3 was used as a sole and safe initiator, making this protocol highly advantageous.

Tetrahedron Letters published new progress about Acrylamides Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Name: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Tran, Van Hieu published the artcilePractical direct synthesis of N-aryl-substituted azacycles from N-alkyl protected arylamines using TiCl4 and DBU, SDS of cas: 5961-59-1, the main research area is aryl substituted azacycle preparation; alkyl protected arylamine cyclic ether titanium tetrachloride diazabicyclo undecene.

A novel transformation of N-alkyl protected arylamines and cyclic ethers into N-aryl substituted azacycles is described. Alkyl groups have been used for the protection of amines in organic syntheses. In this synthesis, N-alkyl protected arylamines were reacted with cyclic ethers in the presence of TiCl4 and DBU, crucial reagents affording five- and six-membered azacycles. In particular, utilization of the novel TiCl4/DBU-mediated reaction allows various N-alkyl protected arylamines such as N-methyl-, N-ethyl-, N-iso-Pr, and N-tert-Bu arylamines to be readily converted into N-aryl substituted azacycles in high yields. This practical approach using various N-alkyl arylamines leads to the efficient preparation of azacycles.

Organic & Biomolecular Chemistry published new progress about Cyclic ethers Role: RCT (Reactant), RACT (Reactant or Reagent). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, SDS of cas: 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Byrne, Liam published the artcileEnantioselective Synthesis of Atropisomeric Biaryls using Biaryl 2,5-Diphenylphospholanes as Ligands for Palladium-Catalysed Suzuki-Miyaura Reactions, HPLC of Formula: 151-10-0, the main research area is biaryl diphenylphospholane preparation; atropisomeric biaryl heterobiaryl preparation; boronic acid aryl bromide asym Suzuki Miyaura palladium catalyst.

Herein, the development of biaryl 2,5-diphenylphospholanes as a new class of C2-sym., monodentate ligands for asym. Suzuki-Miyaura (ASM) reactions is reported. Screening of a series of exemplary phospholanes led to the identification of two ligands that were used to prepare a range of atropisomeric biaryl and heterobiaryl products with good to excellent levels of enantioselectivity (up to 97:3 e.r.) under mild conditions. DFT studies suggest that the formation of a constraining ligand pocket and coordination of one of the biaryl methoxy groups in the optimized ligands to the metal center is crucial for restricting conformational freedom in the bond-forming step.

Advanced Synthesis & Catalysis published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, HPLC of Formula: 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lekky, Anek published the artcileStereoselective Convergent Synthesis of Tetrahydro-5H-benzo[c]fluorene via Nine-Membered Ring-Closing Metathesis and Transannular Acid-Mediated Cyclization/Nucleophilic Addition, Related Products of isoquinoline, the main research area is tetrahydrobenzofluorene stereoselective preparation ring closing metathesis transannular acid cyclization.

The diene Me ethers or acetates, constructed from the Li-Br exchange/addition reactions of 2-vinylbenzaldehydes and 2-(but-3-en-1-yl)bromoarenes followed by etherification or acetylation of the corresponding alcs., smoothly underwent the ring-closing metathesis (RCM) by using Hoveyda-Grubbs II as a catalyst to provide the corresponding benzannulated (Z)-cyclononenes as single products in good yields (up to 75%). The ensuing one-pot acid-mediated transannular cyclization/nucleophilic addition at C7 furnished the corresponding tetrahydro-5H-benzo[c]fluorenes as single stereoisomers with the exclusive cis stereochem. at the ring junction (C5-C6) and trans at the site of nucleophilic attack (C6-C7) on the three contiguous stereogenic centers in good to excellent yield (up to 94%). The developed strategy was general; the reaction conditions were compatible with hydride, azide, and electron-rich aromatics as nucleophiles. In addition, various methoxylated benzannulated cyclononene acetates could be employed as substrates. Thus, tetrahydro-5H-benzo[c]fluorenes could be prepared in four steps from appropriately substituted bromoarenes and benzaldehydes in good yields (up to 56%) with excellent stereo- and regio-control.

Journal of Organic Chemistry published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Gomez-Angel, Andres R. published the artcileSynthesis and functionalization of a bifunctional normorphan 3D building block for medicinal chemistry, COA of Formula: C8H10O2, the main research area is bifunctional normorphan 3D building block diastereoselective preparation.

A multi-gram-scale synthetic route to a novel, bifunctional normorphan 3D building block bearing orthogonally reactive vinyl MIDA boronate and N-2,4-dimethoxybenzyl (DMB) amide functional handles I was developed. Synthetic manipulation at each of the functional handles was demonstrated including Suzuki-Miyaura cross-coupling, exo-diastereoselective hydrogenation, N-DMB group removal and lactam reduction Normorphan cores derived from the building block satisfied AstraZeneca’s ‘rule of 2’ for building blocks and had a high fraction of sp3 hybridized carbon atoms (Fsp3). A virtual lead-like library of 344 compounds derived from the building block had attractive lead-like properties. The 3D building block was commercialised by Redbrick Mol. and was available for purchase.

Tetrahedron published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, COA of Formula: C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem