Category: isoquinoline

Gunturi, S. B. published the artcilePrediction of skin sensitization potential using D-optimal design and GA-kNN classification methods, Safety of 5-Methyl-2-phenylhex-2-enal, the main research area is computational model skin sensitization D optimal design GA kNN.

Modeling of skin sensitization data of 255 diverse compounds and 450 calculated descriptors was performed to develop global predictive classification models that are applicable to whole chem. space. With this aim, we employed two automated procedures, (a) D-optimal design to select optimal members of the training and test sets and (b) k-Nearest Neighbor classification (kNN) method along with Genetic Algorithms (GA-kNN Classification) to select significant and independent descriptors in order to build the models. This methodol. helped us to derive multiple models, M1-M5, that are stable and robust. The best among them, model M1 (CCRtrain = 84.3%, CCRtest = 87.2% and CCRext = 80.4%), is based on six neighbors and nine descriptors and further suggests that: (a) it is stable and robust and performs better than the reported models in literature, and (b) the combination of D-optimal design and GA-kNN classification approach is a very promising approach. Consensus prediction based on the models M1-M5 improved the CCR of training, test and external validation datasets by 3.8%, 4.45% and 3.85%, resp., over M1. From the anal. of the phys. meaning of the selected descriptors, it is inferred that the skin sensitization potential of small organic compounds can be accurately predicted using calculated descriptors that code for the following fundamental properties: (i) lipophilicity, (ii) at. polarizability, (iii) shape, (iii) electrostatic interactions, and (iv) chem. reactivity.

SAR and QSAR in Environmental Research published new progress about Genetic algorithm (GA-kNN (genetic algorithm-k-nearest neighbor)). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Safety of 5-Methyl-2-phenylhex-2-enal.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kamitanaka, Tohru published the artcile[3+2] Coupling of Quinone Monoacetals with Vinyl Ethers Effected by Tetrabutylammonium Triflate: Regiocontrolled Synthesis of 2-Oxygenated Dihydrobenzofurans, Name: 1,3-Dimethoxybenzene, the main research area is dihydrobenzofuran preparation diastereoselective regioselective; quinone monoacetal vinyl ether coupling tetrabutylammonium triflate catalyst.

The synthesis of 2-oxygenated dihydrobenzofurans I (R = H, Me, t-Bu, OMe, NHAc; R1 = H, Me, t-Bu; R2 = Me, Et; R3 = H, OMe; X = -CH2-, -O-; n = 0, 1), II (R4 = Et, i-Pr; R5 = H, Me) involving the [3+2] coupling of quinone monoacetals III with vinyl ethers IV has been realized by tetrabutylammonium triflate catalysis. The reaction involves a new activation method of the acetal moiety in quinone monoacetals III under acid-free conditions affording the highly oxygenated dihydrobenzofurans I, II. This new activation mode was achieved by using the triflate anion catalyst for stabilization of the highly reactive cationic intermediate.

Organic Letters published new progress about [3+2] Cycloaddition reaction catalysts (regio-, stereoselective). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Name: 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Gang published the artcileCatalytic enantioselective oxidative coupling of saturated ethers with carboxylic acid derivatives, Synthetic Route of 104-01-8, the main research area is ether azolidinyl alkanone preparation regioselective enantioselective cross dehydrogenative coupling.

A formal catalytic enantioselective cross-dehydrogenative coupling of saturated ethers with diverse carboxylic acid derivatives involving an initial oxidative acetal formation, followed by nickel(II)-catalyzed asym. alkylation. The one-pot, general and modular method exhibited wide compatibility of a broad range of saturated ethers not only including prevalent THF and tetrahydropyran but also including medium- and large-sized cyclic moieties and acyclic ones with excellent enantioselectivity and functional group tolerance. The application in the rapid preparation of biol. active mols. that are difficult to access with existing methods was also demonstrated.

Nature Communications published new progress about Aliphatic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Synthetic Route of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Shen, Hui published the artcileSynthesis of 3-substituted 2-oxindoles from secondary α-bromo-propionanilides via palladium-catalyzed intramolecular cyclization, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is bromo phenylalkanamide palladium catalyst heterocyclization; alkyloxindole preparation.

A palladium-catalyzed intramol. cyclization of α-bromo-propionanilides was developed, delivering a series of 3-substituted 2-oxindoles in high yields. The method features easy to prepare starting materials, broad substrate scope and excellent functional group tolerance. A detailed mechanistic investigation was performed.

Organic & Biomolecular Chemistry published new progress about Aliphatic acids 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, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Nguyen, Khang X. published the artcileSulfur-Mediated Decarboxylative Coupling of 2-Nitrobenzyl Alcohols and Arylacetic Acids, Safety of 4-Methoxyphenylacetic acid, the main research area is nitro benzylalc arylacetic acid sulfur mediated decarboxylative coupling; aryl quinazoline.

A new method for the synthesis of substituted quinazolines by the condensation of 2-nitrobenzyl alcs. with arylacetic acids. The transformation requires the use of urea as a nitrogen source, elemental sulfur as a promoter, DABCO as a base and DMSO as a solvent. Functionalities such as chloro, fluoro, trifluoromethyl, thienyl and indolyl groups were all compatible with the reaction conditions. Because this method uses stable simple substrates to obtain the N,N-heterocycles in the absence of transition metals, it offers a potential pathway for preparing complex structures under mild conditions.

Synlett published new progress about Aliphatic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Safety of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kwon, Jungmin published the artcileSynthesis of Arenesulfonyl Fluorides via Sulfuryl Fluoride Incorporation from Arynes, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is arenesulfonyl fluoride preparation; sulfuryl fluoride multicomponent reaction aryne amine; zwitterionic intermediate.

Transition-metal-free multicomponent reactions involving aryne precursors, secondary amines, and sulfuryl fluoride are reported herein. Zwitterionic intermediates formed from the reaction of arynes with amine nucleophiles can capture SO2F2 under mild conditions, offering a novel and practical protocol for the synthesis of 2-dialkyl-, 2-alkylaryl-, or 2-diarylamino-substituted arenesulfonyl fluoride derivatives in good to excellent yields.

Organic Letters published new progress about Alkynes, arynes 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, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zeng, Fan-Lin published the artcileVisible light-induced recyclable g-C3N4 catalyzed thiocyanation of C(sp2)-H bonds in sustainable solvents, Formula: C8H11NO, the main research area is arene ammonium thiocyanate carbon nitride catalyst thiocyanation green chem; aryl thiocyanate preparation.

A metal-free photocatalytic strategy for the preparation of thiocyanated heterocycles from inexpensive NH4SCN was developed using carbon nitride (g-C3N4) as a general heterogeneous catalyst in a green solvent under an air atm. and the irradiation of a blue LED. Various thiocyanated heterocycles including indolo[2,1-a]isoquinolin-6(5H)-ones, benzimidazo[2,1-a]isoquinolin-6(5H)-ones, thioflavones, azaspiro[4.5]trienones and imidazo[1,2-a]pyridines were successfully synthesized in good yields (up to 96%). Importantly, this metal-free and external-oxidant-free procedure employed di-Me carbonate as a green medium, avoiding the traditional volatile organic solvents. Moreover, the recyclable g-C3N4 catalyst was used at least 8 times without significant loss of activities.

Green Chemistry published new progress about Alkynyl ketones 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, Formula: C8H11NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Perry, Mitchell R. published the artcileMono, bis, and tris(phosphoramidate) titanium complexes: synthesis, structure, and reactivity investigations, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is mono bis phosphoramidate titanium preparation crystal mol structure reactivity; hydroamination catalyst mono bis phosphoramidate titanium complex preparation.

A series of variously substituted phosphoramidate titanium complexes bearing dimethylamido ligands are reported. Aryl-substituted ligands impart crystallinity to the systems and allow for the elucidation of the mol. structures via x-ray crystallog. Higher-substituted complexes, including a tris(phosphoramidate)mono(dimethylamido) complex, were isolated and characterized in the solid state, as well as in solution using variable temperature 1H and 31P NMR spectroscopy. The steric bulk possessed by this ligand system, relative to amidate and ureate ligands, has allowed access to a mono(phosphoramidate)tris(dimethylamido) complex. The first solid-state-mol. structure of a mono-ligated 1,3-N,O chelated complex of titanium is reported and compared to the resp. bis- and tris-analogs. These complexes were screened for hydroaminoalkylation activity between secondary amines and terminal alkenes and the intramol. hydroamination of a terminal aminoalkene. Mono(phosphoramidate)tris(dimethylamido) complexes were screened in situ and more active than their resp. bis(N,O)-chelated analogs. The elucidation of these complexes allows for a direct comparison to other N,O-chelates of early transition metals, particularly in their hydroaminoalkylation and hydroamination reactivity.

Dalton Transactions published new progress about Amines, alkenyl 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, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhong, Jun-Song published the artcileDesulfonylative Electrocarboxylation with Carbon Dioxide, HPLC of Formula: 104-01-8, the main research area is aralkyl carboxylic acid preparation; benzyl sulfone carbon dioxide desulfonylative electrocarboxylation.

Electrocarboxylation of organic halides is one of the most investigated electrochem. approaches for converting thermodynamically inert carbon dioxide (CO2) into value-added carboxylic acids. By converting organic halides into their sulfone derivatives ArC(R)(R1)S(O)2C6H5 [Ar = Ph, thiophen-3-yl, 4-(tetramethyl-1,3,2-dioxaborolan-2-yl)benzen-1-yl, etc.; R = H, Me, Ph, D, but-2-yn-1-yl, etc.; R1 = H, Me, D, 2-methylprop-2-en-1-yl, etc.; RR1 = -(CH2)5-, -CH2CH=CHCH2-], a highly efficient electrochem. desulfonylative carboxylation protocol have been developed. Such a strategy takes advantage of CO2 as the abundant C1 building block for the facile preparation of multifunctionalized carboxylic acids ArC(R)(R1)C(O)OH, including the nonsteroidal anti-inflammatory drug ibuprofen, under mild reaction conditions.

Journal of Organic Chemistry published new progress about Aralkyl halides Role: RCT (Reactant), RACT (Reactant or Reagent). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, HPLC of Formula: 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ece, Hamdiye published the artcileSilyl Cyanopalladate-Catalyzed Friedel-Crafts-Type Cyclization Affording 3-Aryloxindole Derivatives, Quality Control of 5961-59-1, the main research area is aryloxindole preparation; diethyl phosphate Friedel Crafts cyclization trimethylsilyl tricyanopalladate complex catalyst.

3-Aryloxindole derivatives were synthesized through a Friedel-Crafts-type cyclization. The reaction was catalyzed by a trimethylsilyl tricyanopalladate complex generated in situ from trimethylsilyl cyanide and Pd(OAc)2. Wide varieties of di-Et phosphates derived from N-arylmandelamides were converted almost quant. into oxindoles. When N,N-dibenzylamide was used instead of an anilide substrate, a benzo-fused δ-lactam was obtained. An oxindole product was subjected to substitution reactions to afford 3,3-diaryloxindoles with two different aryl groups.

Synlett published new progress about Aromatic amides 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