Category: 1205-17-0

van Gemmeren, Manuel published the artcileSwitchable Site-Selective Catalytic Carboxylation of Allylic Alcohols with CO2, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is carbon dioxide allylic alc carboxylation; allylic carboxylic acid regioselective preparation nickel catalyst reaction mechanism; carbon dioxide; cross-coupling; nickel; regioselectivity; synthetic methods.

A switchable site-selective catalytic carboxylation of allylic alcs. has been developed in which CO2 is used with dual roles, both facilitating C-OH cleavage and as a C1 source. This protocol is characterized by its mild reaction conditions, absence of stoichiometric amounts of organometallic reagents, broad scope, and exquisite regiodivergency which can be modulated by the type of ligand employed.

Angewandte Chemie, International Edition published new progress about Carboxylation. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Dong, Jianyang published the artcileLight-Mediated Difluoromethylthiolation of Aldehydes with a Hydrogen Atom Transfer Photocatalyst, Formula: C11H12O3, the main research area is difluoromethyl thioester preparation light photocatalyst difluoromethylthiolation aldehyde.

A mild general method for difluoromethylthiolation of aldehydes with PhSO2SCF2H and a decatungstate photocatalyst under redox-neutral conditions has been developed. This reaction is highly efficient, scalable, and oxidant-free. The broad substrate scope and excellent functional group tolerance of the reaction make it suitable for generating libraries of difluoromethyl thioesters. We demonstrated the utility and sustainability of the method by synthesizing several structurally complex difluoromethyl thioesters.

Organic Letters published new progress about Aryl aldehydes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yuan, Kedong published the artcileArylation of gem-difluoroalkenes using a Pd/Cu Co-catalytic system that avoids β-fluoride elimination, Application In Synthesis of 1205-17-0, the main research area is difluorobenzyl methylalkene preparation; difluoroalkene arylsulfonyl chloride palladium copper catalyst diastereoselective arylation.

PdII/CuI co-catalyze an arylation reaction of gem-difluoroalkenes using arylsulfonyl chlorides to deliver α,α-difluorobenzyl products. The reaction proceeded through a β,β-difluoroalkyl-Pd intermediate that typically underwent unimol. β-F elimination to deliver monofluorinated alkene products in a net C-F functionalization reaction. However to avoid β-F elimination, the β,β-difluoroalkyl-Pd intermediate were offered, an alternate low-energy route involving β-H elimination to ultimately deliver difluorinated products in a net arylation/isomerization sequence. Overall, this reaction enabled exploration of new reactivities of unstable fluorinated alkyl-metal species, while also providing new opportunities for transforming readily available fluorinated alkenes into more elaborate substructures.

Chemical Science published new progress about Arylation catalysts, stereoselective. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Application In Synthesis of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Min, Xiao-Long published the artcileAxial-to-Central Chirality Transfer for Construction of Quaternary Stereocenters via Dearomatization of BINOLs, COA of Formula: C11H12O3, the main research area is spiro benzochromene naphthalenone asym synthesis; binaphthol dearomatization axial chirality transfer propargyl carbonate enantioselective spirocyclization.

Herein, an axial-to-central chirality transfer strategy for the synthesis of chiral quaternary stereocenters via dearomatization of (S)-BINOLs is disclosed. The reaction of (S)-BINOL with a wide range of propargyl carbonates I (R = Me, cyclopropyl, Ph, 4-ClC6H4, 1-naphthyl, 2-benzothienyl, etc.) proceeded smoothly to afford chiral spiro compounds II in high yields with excellent enantioselectivities. In addition, the strategy was extended to kinetic resolution of rac-BINOLs albeit with moderate s value.

Organic Letters published new progress about Dearomatization. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, COA of Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Schwarz, J. Luca published the artcileDialkylation of 1,3-Dienes by Dual Photoredox and Chromium Catalysis, Recommanded Product: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is homoallylic alc diastereoselective enantioselective preparation; aldehyde Hatzsch ester diene multicomponent photoredox dialkylation chromium catalyst.

The direct conversion of feedstock chems. into value-added products is of broad interest in chem. research. Herein, we present a regioselective and diastereoselective three-component dialkylation of feedstock 1,3-dienes with Hantzsch esters and aldehydes for the synthesis of homoallylic alcs. The reaction is enabled by dual photoredox and chromium catalysis and can also be performed enantioselectively by employing chromium-bisoxazoline complexes.

ACS Catalysis published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Recommanded Product: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Bonderoff, Sara A. published the artcileSuperacid-catalyzed Friedel-Crafts cyclization of unactivated alkenes, Computed Properties of 1205-17-0, the main research area is unactivated alkene preparation intramol Friedel Crafts cyclization trifluoromethanesulfonimide; spiro benzoxocine cyclopropane preparation mol crystal structure; tetralin preparation; trifluoromethanesulfonimide intramol Friedel Crafts cyclization superacid catalyst.

Trifluoromethanesulfonimide is an effective catalyst for Friedel-Crafts cyclizations of simple, nonpolarized alkenes with a variety of pendant arenes. A catalyst loading of 0.5 – 1.0 mol % effects clean cyclization to form 5- to 7-membered carbocycles with generally short reaction times and good to excellent yields under reflux or microwave heating. X-rays single crystal structure of compound I is shown.

Tetrahedron Letters published new progress about Crystal structure. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Computed Properties of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Wei published the artcileMesoionic Carbene (MIC)-Catalyzed H/D Exchange at Formyl Groups, Name: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is aldehyde triazolylidene catalyst deuteration; imine triazolylidene catalyst deuteration.

Investigation of the reaction of aldehydes with 1,2,3-triazolylidenes has revealed the reversible formation of Breslow intermediates and the inhibition of the condensation steps in methanol solvent. 1,2,3-Triazolylidenes catalyzed the H/D exchange of aryl, alkenyl and alkyl aldehydes in high yields and deuterium incorporation levels using deuterated methanol as an affordable D source. The unique properties of these mesoionic carbenes (MICs) enabled a streamlined preparation of deuterated synthetic intermediates and pharmacophores that are highly valuable as mechanistic and metabolic probes.

Chem published new progress about Deuteration. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Name: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liao, Yangzhen published the artcileTransition-metal-free radical relay cyclization of vinyl azides with 1,4-dihydropyridines involving a 1,5-hydrogen-atom transfer: access to α-tetralone scaffolds, HPLC of Formula: 1205-17-0, the main research area is tetralone scaffold preparation green chem diastereoselective; vinyl azide dihydropyridine radical hydrogen transfer cyclization.

The remote C(sp3)-H functionalization enabled by a radical-mediated 1,5-hydrogen-atom transfer (HAT) process using 1,4-dihydropyridines I (R = cyclohexyl, 3-phenyl-2-methylpropyl, 1-cyclohexylethyl, etc.; R1 = C(O)OEt, CN) and vinyl azides R2C(=CH2)N3 (R2 = 2-chlorophenyl, 1-naphthyl, benzofuran-2-yl, etc.) as precursors has been described. In this study, 1,4-dihydropyridines I can function as 1,2-diradical synthons through sequential homolytic cleavage of an ipso-C-C bond and a β-C(sp3)-H bond. This reaction offers facile access to a diverse range of α-tetralones e.g., II with excellent stereoselectivity. The utility of the present method is further highlighted by its application to rapid assembly of the tetracyclic scaffold present in furanosteroids as well as the synthesis of aromatic amines.

Organic Chemistry Frontiers published new progress about C-C bond formation. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, HPLC of Formula: 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xu, Yan published the artcilePhotochemical, Nickel-Catalyzed C(sp3)-C(sp3) Reductive Cross-Coupling of α-Silylated Alkyl Electrophiles and Allylic Sulfones, Name: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is nickel catalyzed reductive cross coupling silylated alkyl bromide allylsulfone; homoallylic silane preparation.

A Ni-catalyzed C(sp3)-C(sp3) cross-electrophile coupling between α-silylated alkyl bromides and an allylic sulfone is reported. Instead of a metal as the stoichiometric reductant, this photochem. reductive process relies on a Hantzsch ester but does not require an exogenous photocatalyst. The role of the silyl group in the α-position and its stabilizing effect on the assumed C-centered radical intermediate is demonstrated. The functional-group tolerance is excellent, allowing for the synthesis of various homoallylic silanes.

ACS Catalysis published new progress about Bromoalkanes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Name: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Hamel, Jean-Denys published the artcileHighly regioselective gold-catalyzed formal hydration of propargylic gem-difluorides, Formula: C11H12O3, the main research area is difluoroketone preparation regioselective; propargylic gem difluoride hydration gold catalyst.

Herein, a highly regioselective gold-catalyzed formal hydration of propargylic gem-difluorides was reported. Not only does this transformation provide access to versatile fluorinated building blocks that were difficult or hardly possible to access beforehand, but it also represents a rare case of a highly regioselective gold-catalyzed hydroalkoxylation of internal alkynes and puts forward the utility of the difluoromethylene unit as a directing group in catalysis.

Organic & Biomolecular Chemistry published new progress about Haloketones Role: SPN (Synthetic Preparation), PREP (Preparation). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem