Category: 1205-17-0

Wang, Xuefeng published the artcileAccess to Sulfoxides under NHC/Photocatalysis via a Radical Pathway, Product Details of C11H12O3, the main research area is sulfoxide preparation photochem; sulfinic acid Hantzsch ester Meyer nitrile radical coupling reaction.

A photocatalyzed transformation from sulfinic acids to sulfoxides under visible-light irradiation in the presence of N-heterocyclic carbene is established. Various alkyl groups from four-substituted Hantzsch esters or Meyer nitriles are smoothly converted to the corresponding sulfoxides through a radical coupling pathway in the presence of 1,1-carbonyldiimidazole. This method allows sulfoxide synthesis to refrain from relying on the oxidation of sulfides and provides an alternative route for the preparation of sulfoxides.

Organic Letters published new progress about Aromatic compounds, sulfoxides 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, Product Details of C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Cormick, Justin published the artcileA survey of novel MDA and MDMA precursors by isotope ratio mass spectrometry, Recommanded Product: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is methylenedioxyamphetamine methylenedioxymethylamphetamine isotope mass spectrometry.

Presented is a survey of the hydrogen, carbon and oxygen isotope profiles of traditional and novel precursors and pre-precursors used for the synthesis of 3,4-methylenedioxyamphetamine (MDA) and 3,4-methylenedioxymethylamphetamine (MDMA). The purpose of this survey was to determine what variations exist in the stable isotope profiles of compounds from which these drugs can be produced. The control of the traditional precursors safrole, isosafrole, piperonal and 3,4-methylenedioxyphenyl-2-propanone (MDP2P) has seen clandestine laboratories utilizing some novel alternative chems. Helional has emerged primarily as a precursor to MDA and although recently legislated in Queensland, Australia, remains largely uncontrolled in most jurisdictions. Results for the uncontrolled pre-precursors catechol, vanillin and vanillic acid are also presented in this survey. In total 45 precursor samples were collected, with a focus on helional that is readily available online through fragrance supply companies. The identity and purity of all samples was confirmed using a range of techniques. Stable isotope profiles were obtained by isotope ratio mass spectrometry (IRMS) anal. These results showed a greater variation in stable isotope profiles than previously reported in MDA/MDMA precursors. These results suggest that stable isotope profiling may be used to compare and differentiate precursors used in the production of MDA/MDMA. IRMS may also allow for the grouping or discrimination of MDA and MDMA, especially when synthesized from these novel precursors or pre-precursors.

Forensic Chemistry published new progress about Isotopes Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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

Marrakchi, Mouna published the artcileA new concept of olfactory biosensor based on interdigitated microelectrodes and immobilized yeasts expressing the human receptor OR17-40, Product Details of C11H12O3, the main research area is olfactory biosensor interdigitated microelectrode Saccharomyces receptor OR1740 gene.

This work shows the feasibility of an olfactory biosensor based on the immobilization of Saccharomyces cerevisiae yeast cells genetically modified to express the human olfactory receptor OR17-40 onto interdigitated microconductometric electrodes. This olfactory biosensor has been applied to the detection of its specific odorant (helional) with a high sensitivity (threshold 10-14 M). In contrast, no significant response was observed using a non-specific odorant (heptanal), which suggests a good selectivity. Thus, this work may represent a first step towards a new kind of bioelectronic noses based on whole yeast cells and allowing a real time monitoring of olfactory receptor activation.

European Biophysics Journal published new progress about Biosensors. 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

Ishikawa, Youichi published the artcileMolecular orbital approach to odor molecules: normal fatty acids and cyclamenaldehydes, Formula: C11H12O3, the main research area is fatty acid odor mspr MO; cyclamenaldehyde odor mspr MO.

Eight normal fatty acids and 24 cyclamenaldehydes were analyzed based on the MO theory using Computer-Aided Chem. Programs (CAChe Programs) with PM3 parameters. We found reactive sites with high values of electrophilic frontier densities (EFDs) at appointed positions in both mol. series. A change in the values of EFDs in normal fatty acids would account for the selectivity in the response of a single olfactory receptor cell to the fatty acids. Changes in the values of EFDs at appointed positions of cyclamenaldehydes also correlated with their odor characteristics and intensities. This fact indicates that cyclamenaldehydes have common reactive sites that play a critical role in interactions with a receptor. Changes in their reactivities alter the odor characteristics and intensities of the mols. judged by perfumers, indicating that human discrimination of cyclamenaldehyde odor is determined at the stage of interaction between cyclamenaldehydes and an odor receptor.

International Journal of Quantum Chemistry published new progress about Electron density (FMO, electrophilic). 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

Briand, Loiec published the artcileEvidence of an Odorant-Binding Protein in the Human Olfactory Mucus: Location, Structural Characterization, and Odorant-Binding Properties, Quality Control of 1205-17-0, the main research area is odorant binding protein OBP olfactory epithelium cleft mucus; hOBP isoform IIa alpha aldehyde fatty acid.

Odorant-binding proteins (OBPs) are small abundant extracellular proteins belonging to the lipocalin superfamily. They are thought to participate in perireceptor events of odor detection by carrying, deactivating, and/or selecting odorant mols. Putative human OBP genes (hOBP) have recently been described [Lacazette et al. (2000) Hum. Mol. Genet. 9, 289-301], but the presence of the corresponding proteins remained to be established in the human olfactory mucus. This paper reports the first evidence of such expression in the mucus covering the olfactory cleft, where the sensory olfactory epithelium is located. On the contrary, hOBPs were not observed in the nasal mucus covering the septum and the lower turbinate. To demonstrate the odorant binding activity of these proteins, a corresponding recombinant protein variant, hOBPIIaα, was secreted by the yeast Pichia pastoris and thoroughly characterized. It appears as a monomer with one disulfide bond located between C59 and C151, a conservative feature of all other vertebrate OBPs. By measuring the displacement of several fluorescent probes, we show that hOBPIIaα is able to bind numerous odorants of diverse chem. structures, with a higher affinity for aldehydes and large fatty acids. A computed 3D model of hOBPIIaα is proposed and reveals that two lysyl residues of the binding pocket may account for the increased affinity for aldehydes. The relatively limited specificity of hOBPIIaα suggests that other human OBPs are expected to take into account the large diversity of odorant mols.

Biochemistry published new progress about Disulfide group (C59-C151). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Quality Control of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Senthamarai, Thirusangumurugan published the artcileUltra-small cobalt nanoparticles from molecularly-defined Co-salen complexes for catalytic synthesis of amines, Recommanded Product: 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is amine preparation; carbonyl compound ammonia cobalt salen nanocatalyst; aldehyde amine cobalt salen nanocatalyst.

The synthesis of in situ generated cobalt nanoparticles from molecularly defined complex cobalt(II)-N,N’-bis(salicylidene)-1,2-phenylenediamine as efficient and selective catalysts for reductive amination reactions. In the presence of ammonia and hydrogen, cobalt-salen complexes such as cobalt(II)-N,N’-bis(salicylidene)-1,2-phenylenediamine produce ultra-small (2-4 nm) cobalt-nanoparticles embedded in a carbon-nitrogen framework. The resulting materials constitute stable, reusable and magnetically separable catalysts, which enable the synthesis of linear and branched benzylic, heterocyclic and aliphatic primary amines RCH(R1)NH2 [R = Ph, pyridin-3-yl, 4-tert-butylcyclohexyl, etc.; R1 = H, Me, n-Bu, Bn; RR1 = -(CH2)7-] from carbonyl compounds RC(O)R1 and ammonia. The isolated nanoparticles also represent excellent catalysts for the synthesis of primary, secondary as well as tertiary amines including biol. relevant N-Me amines R2CH2N(R3)(R4) (R2 = Ph, pyridin-3-yl, n-heptyl, etc.; R3 = Ph, n-hexyl, cyclopentyl, etc.; R4 = H, Me).

Chemical Science published new progress about Carbonyl compounds (organic) 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

Nichols, Andrew S. published the artcileSubunit Contributions to Insect Olfactory Receptor Function: Channel Block and Odorant Recognition, SDS of cas: 1205-17-0, the main research area is Drosophila olfactory receptor subunit channel block odorant recognition.

Insect olfactory receptors are heteromeric ligand-gated ion channels composed of � common subunit (Orco) and � subunit that confers odorant specificity. Little is known about how individual subunits contribute to the structure and function of the olfactory receptor complex. We expressed insect olfactory receptors in Xenopus oocytes to investigate 2 functional features, ion channel block and odorant recognition. The sensitivity of Drosophila olfactory receptors to inhibition by ruthenium red, a cation channel blocker, varied widely when different specificity subunits were present, suggesting that the specificity subunits contribute to the structure of the ion pore. Olfactory receptors formed by DmelOr35a and Orco subunits from several different species displayed highly similar odorant response profiles, suggesting that the Orco subunit does not contribute to the structure of the odorant-binding site. We further explored odorant recognition by conducting a detailed examination of the odorant specificity DmelOr67a + DmelOrco, a receptor that responds to aromatic structures. This screen identified agonists, partial agonists, and an antagonist of DmelOr67a + DmelOrco. Our findings favor specific subunit arrangements within the olfactory receptor complex and provide a preliminary odorophore for an olfactory receptor, offering a useful foundation for future exploration of insect olfactory receptor structure.

Chemical Senses published new progress about Drosophila. 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

Roberts, David W. published the artcileSkin Sensitization QMM for HRIPT NOEL Data: Aldehyde Schiff-Base Domain, Synthetic Route of 1205-17-0, the main research area is skin sensitization QMM Schiff Base.

The general chem. principles underlying skin sensitization for Schiff base (SB) electrophiles may be used to develop a quant. mechanistic model (QMM), based on reactivity supplemented with a hydrophobicity parameter for some but not all structures within the SB reaction domain. For aliphatic Schiff base electrophiles, the log of the no observed effect level (NOEL) values (pNOEL) from the human repeated insult patch test (HRIPT) can be calculated by the reactivity parameter summation of sigma star values (Σσ*) and a hydrophobicity parameter (logP). Specifically, the QMM, pNOEL = 2.34(± 0.33) Σσ* + 0.19(± 0.07) logP – 2.62(± 0.22), R2 = 0.77, R2(adj) = 0.74, s = 0.20, F = 27, was developed. Not all parts of the Schiff base domain are modeled with one equation. Particularly, predicting aromatic aldehydes and ketones appears to require a sep. equation. Interestingly, the same phys. organic chem. properties originally applied to modeling the local lymph node assay potency of Schiff base electrophiles apply to human potency as represented by the HRIPT. Reg.

Chemical Research in Toxicology published new progress about Contact dermatitis. 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Synthetic Route of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jagadeesh, Rajenahally V. published the artcileMOF-derived cobalt nanoparticles catalyze a general synthesis of amines, Related Products of isoquinoline, the main research area is MOF cobalt nanoparticle preparation; carbonyl amine reductive amination.

The development of base metal catalysts for the synthesis of pharmaceutically relevant compounds remains an important goal of chem. research. Here, we report that cobalt nanoparticles encapsulated by a graphitic shell are broadly effective reductive amination catalysts. Their convenient and practical preparation entailed template assembly of cobalt-diamine-dicarboxylic acid metal organic frameworks on carbon and subsequent pyrolysis under inert atm. The resulting stable and reusable catalysts were active for synthesis of primary, secondary, tertiary, and N-methylamines (more than 140 examples). The reaction couples easily accessible carbonyl compounds (aldehydes and ketones) with ammonia, amines, or nitro compounds, and mol. hydrogen under industrially viable and scalable conditions, offering cost-effective access to numerous amines, amino acid derivatives, and more complex drug targets.

Science (Washington, DC, United States) published new progress about Aromatic nitro compounds 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, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wu, Qiang published the artcileIron-catalyzed deconstructive alkylation through chlorine radical induced C-C single bond cleavage under visible light, SDS of cas: 1205-17-0, the main research area is dinitrile ketone preparation; alkene alc alkylation iron catalyst.

Herein, a chlorine radical-induced deconstructive C-C bond alkylation with alcs. and alkenes catalyzed by iron salts was reported for the first time. Readily available alcs. and various electron-deficient alkenes were tolerated. Late-stage and large-scale reactions proceed smoothly. This catalyst system showed potential for diversified deconstructive functionalization of simple C-C bonds.

Chemical Communications (Cambridge, United Kingdom) published new progress about Alkylation. 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