Category: 1205-17-0

Boxer, Matthew B. published the artcileSuper Silyl Group for a Sequential Diastereoselective Aldol-Polyhalomethyllithium Addition Reaction, COA of Formula: C11H12O3, the main research area is diastereoselective aldol polyhalomethyllithium addition reaction super silyl group.

The super silyl group governs high diastereoselectivity and yields for a sequential aldol-polyhalomethyllithium addition reaction. This unique silyl group is necessary to obtain the diastereoselectivities associated with this sequential reaction, capable of generating two new stereocenters, e.g. I. α-Polyhalomethylcarbinols are generated with the simple and inexpensive dihalomethanes and trihalomethanes.

Organic Letters published new progress about Addition reaction, stereoselective. 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

Triandafillidi, Ierasia published the artcileSynthesis of γ-Lactones Utilizing Ketoacids and Trimethylsulfoxonium Iodide, Formula: C11H12O3, the main research area is gamma hydroxymethyl lactone preparation; Johnson Corey Chaykovsky reaction gamma ketoacid methylsulfoxonium iodide; delta lactone gamma ketoamide cyclocondensation methylsulfoxonium iodide.

γ-Ketoacids, a δ-ketoacid, and a γ-ketoamide underwent Johnson-Corey-Chaykovsky epoxidation with trimethylsulfoxonium iodide and NaH in DMSO to yield γ-(hydroxymethyl)-γ-lactones, a δ-(hydroxymethyl)-δ-lactone, and a γ-(hydroxymethyl)-γ-lactam in 22-76% yields. The method was used in an attempted synthesis of (+)-asperolide C; (-)-epi-asperolide C was obtained in two steps from (+)-podocarpic acid.

Organic Letters published new progress about Corey-Chaykovsky reaction (Johnson-). 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

Domeno, C. published the artcileSampling and analysis of volatile organic pollutants emitted by an industrial stack, Application In Synthesis of 1205-17-0, the main research area is volatile organic pollutant determination industrial stack gas.

The sampling of volatile organic compounds emitted by a process industry was optimized and applied in realistic conditions. Two different fractions were obtained from the emission, one liquid from the condensation of the water vapor which contains the most polar compounds and another fraction of gas, which was trapped on an active carbon filter. Both fractions were analyzed by solid phase microextraction (SPME) with a polyacrylate fiber and then GC-MS. Once the composition of the industrial emission was known, two different systems were studied for reducing the air pollution. The 1st one involves a washing system with water and the 2nd one combines the washing system with a chem. oxidation using NaClO-NaOH. A pilot plant was installed connected to the industrial chimney for the study. Reduction factors of air pollution of 70 and 90%, resp., were found. The anal. results as well as the technol. ones are shown and discussed.

Analytica Chimica Acta published new progress about Gas chromatography-mass spectrometry. 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

Hatt, H. published the artcileCloning, functional expression and characterization of a human olfactory receptor, Category: isoquinoline, the main research area is review olfactory receptor odorant recognition.

A review with 16 references The human olfactory system can recognize and discriminate a large number of different odorant mols. The detection of chem. distinct odorants begins with the binding of an odorant ligand to a specific receptor protein on the olfactory neuron cell surface. To address the problem of olfactory perception at a mol. level, we have cloned, functionally expressed and characterized the first human olfactory receptor (OR 17-40). Application of a mixture of hundred different odorants elicited a transient increase in intracellular calcium at HEK 293-cells which were transfected with a plasmid containing the receptor encoding DNA and a membrane import sequence. By subdividing the odorant mixture in smaller groups we could identify a single component which represented the only effective substance: helional. Testing some structurally closely related mols. we found only one other compound which also could activate the receptor: heliotropyl acetone. All other compounds tested were completely ineffective. These findings represent the beginning of mol. understanding of odorant recognition in humans.

Cellular and Molecular Biology (Paris) published new progress about Odor and Odorous substances (recognition). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jacquier, Valerie published the artcileCharacterization of an extended receptive ligand repertoire of the human olfactory receptor OR17-40 comprising structurally related compounds, Product Details of C11H12O3, the main research area is olfactory receptor OR1740 transport membrane odorant structure olfaction; helional lilial foliaver cyclosal aldehyde methyltolylpropionaldehyde OR1740 receptor; methylhydrocinnamaldehyde methylphenylpentanal trifernal piperonal vanillin OR1740 receptor recognition; hydrocinnamaldehyde bourgeonal methylcinnamaldehyde aldehyde methyl group carbon chain OR1740.

Mol. properties of odorant compounds essential for activation of the human olfactory receptor hOR17-40 were investigated using a collection of 23 variants of its cognate ligand helional. Coupling receptor activation to an optically detectable intracellular Ca2+ ion flux allowed dose-dependent screening of different odorant mols. in human embryonic kidney (HEK)293 cells. We found an extended collection of activating ligands and provide first evidence for hOR17-40-specific antagonists. The C-terminal fusion of enhanced green fluorescent protein to the hOR17-40 retained full receptor function and permitted the selection of cells with defined receptor expression levels, which was an essential step for optimizing our screening protocol. Interestingly, cells with a low EGFP fluorescence intensity exhibited efficient hOR17-40 cell surface targeting and odorant-evoked signal transduction; in contrast, highly fluorescent cells displayed mainly incorrectly targeted, intracellular receptors. Fluorescence-activated cell sorting was used to sep. hOR17-40-expressing cells on the basis of their endogenous EGFP fluorescence intensity, thereby increasing the fraction of odorant-responsive cells to up to 80% of the total cell number

Journal of Neurochemistry published new progress about Cell membrane (OR17-40 translocation to). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Product Details of C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Gati, Wafa published the artcileA highly diastereoselective “”super silyl”” governed aldol reaction: synthesis of α,β-dioxyaldehydes and 1,2,3-triols, Computed Properties of 1205-17-0, the main research area is stereoselective silyl aldol addition synthesis dioxyaldehyde monosaccharide catalyzed triflimide.

A highly diastereoselective approach for the synthesis of protected α,β-dioxyaldehydes derived from (Z)-tris(trimethylsilyl)silyl “”super silyl”” enol ethers is described. A general and highly syn-stereoselective aldol reaction directed by the “”super silyl”” group catalyzed by triflimide (HNTf2) is developed providing α,β-dioxyaldehydes and 1,2,3-triol fragments which can be a useful platform for the elaboration of natural and unnatural sugar derivatives

Chemical Science published new progress about Aldol addition catalysts, stereoselective. 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

Trost, Barry M. published the artcileBranched aldehydes as linchpins for the enantioselective and stereodivergent synthesis of 1,3-aminoalcohols featuring a quaternary stereocenter, Application of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is aminoalc preparation enantioselective diastereoselective; aldehyde Mannich aldol Henry alkyne addition zinc prophenol catalyst.

The use of branched aldehydes e.g., benzyl (S)-(1-(4-fluorophenyl)-2,2-dimethyl-3-oxopropyl)carbamate as versatile linchpins for various Zn-prophenol-catalyzed C-C bond-forming reactions to efficiently construct enantioenriched 1,3-aminoalcs. e.g., I bearing an acyclic quaternary stereogenic center was reported. The ability of the Zn-ProPhenol catalyst to selectively activate ambiphilic aldehydes first as nucleophiles for Mannich reactions and then as electrophiles for aldol, Henry and alkyne addition reactions allows for the one-pot synthesis of complex stereotriads from common building blocks. Moreover, this approach can be diastereodivergent by simply selecting the proper catalyst combination. Overall, this catalytic method directly transforms simple and readily available aldehydes into highly functionalized compounds and provides streamlined access to valuable 1,3-aminoalcs. relevant to the synthesis of biol. important mols.

Nature Catalysis published new progress about Addition reaction 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 of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Mase, Nobuyuki published the artcileSynthesis of β-hydroxyaldehydes with stereogenic quaternary carbon centers by direct organocatalytic asymmetric aldol reactions, Recommanded Product: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is asym aldol reaction aldehyde chiral amine acid catalyst.

A fluorescence detection system was used to identify effective chiral amine/acid combinations as bifunctional catalysts for asym. direct catalytic aldol reactions of α,α-dialkyl aldehydes with aryl aldehydes. With the optimized catalyst system, the reaction of isobutyraldehyde with p-nitrobenzaldehyde provided the α,α-di-Me aldol product in 92% yield with 96% ee.

Angewandte Chemie, International Edition published new progress about Acids Role: CAT (Catalyst Use), USES (Uses). 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

Bourgeois, Frederic published the artcileCatalyst Repurposing Sequential Catalysis by Harnessing Regenerated Prolinamide Organocatalysts as Transfer Hydrogenation Ligands, SDS of cas: 1205-17-0, the main research area is hydroxy butyrolactone preparation enantioselective; aldehyde ethyl glyoxylate aldol addition transfer hydrogenation.

A catalyst repurposing strategy based on a sequential aldol addition and transfer hydrogenation giving access to enantiomerically enriched α-hydroxy-γ-butyrolactones is described. The combination of a stereoselective, organocatalytic step, followed by an efficient catalytic aldehyde reduction induces an ensuing lactonization to provide enantioenriched butyrolactones from readily available starting materials. By capitalizing from the capacity of prolineamides to act as both an organocatalyst and a transfer hydrogenation ligand, catalyst repurposing allowed the development of an operationally simple, economic, and efficient sequential catalysis approach.

Organic Letters published new progress about Aldol addition catalysts, stereoselective. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, SDS of cas: 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Grigg, Ronald published the artcileXY-ZH compounds as potential 1,3-dipoles. Part 63: Silver catalysed azomethine ylide cycloaddition – the synthesis of spiro homoserine lactone analogues, Related Products of isoquinoline, the main research area is lactone thiolactone imine preparation stereoselective regioselective dipolar cycloaddition acrylate; pyrrolidinecarboxylate lactone thiolactone spirocyclic stereoselective preparation.

A range of room temperature 1,3-dipolar cycloaddition reactions of imines of 2-amino-γ-lactone and thiolactone I (X = O, S; R = Ph, cyclohexyl, 3-pyridyl, 1-cyclohexen-4-yl, 2-phenylpropyl, etc.) with Me acrylate, catalyzed by a combination of AgOAc or Ag2O with NEt3 or DBU, are described. The spiro lactones/thiolactones II are formed regio- and stereoselectively as single cycloadducts in good yields via the syn dipoles and an endo-transition states.

Tetrahedron published new progress about 1,3-Dipolar cycloaddition reaction, regioselective. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem