Tag: M.W=150-200

La, Ming published the artcileMonodentate Transient Directing Group-Assisted Palladium-Catalyzed Direct ortho-C-H Iodination of Benzaldehydes for Total Synthesis of Hernandial, Computed Properties of 86-51-1, the main research area is benzaldehyde palladium catalyst regioselective iodination; iodo benzaldehyde preparation.

The first palladium-catalyzed direct o-C-H iodination of benzaldehydes was successfully developed with the assistance of com. available 2,5-bis(trifluoromethyl)aniline as the optimal monodentate transient directing group (MonoTDG). Moderate to excellent yields and good selectivity were achieved for a broad substrate scope under mild conditions. More importantly, the synthetic application was demonstrated by a concise two-step total synthesis of the natural product hernandial, which was accomplished by merging this new MonoTDG-assisted C-H iodination and subsequent copper-catalyzed cross-coupling.

Organic Letters published new progress about Aryl iodides Role: SPN (Synthetic Preparation), PREP (Preparation). 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Computed Properties of 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Alter, Nina published the artcileMicrowave-Assisted One-Pot Synthesis of 2-Substituted Benzoxazoles from Nitrophenol and Carboxylic Acids, Product Details of C9H10O3, the main research area is benzoxazole preparation microwave assisted one pot; nitrophenol carboxylic acid reductive transfer hydrogenation.

Authors have developed a convenient microwave-assisted synthesis of benzoxazoles starting from nitrophenol and carboxylic acids. The reaction sequence can be performed as a one-pot synthesis comprising an initial reductive transfer hydrogenation of the nitro-group with 1,4-cyclohexadiene and Pd/C followed by subsequent formation of the heteroaromatic moiety with propylphosphonic anhydride (T3P). The method gives facile access to various 2-substituted benzoxazoles in 56-83% yield.

Results in Chemistry published new progress about Benzoxazoles Role: SPN (Synthetic Preparation), PREP (Preparation). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Paganelli, Stefano published the artcileSynthesis of fragrances through safrole and isosafrole hydroformylation, SDS of cas: 1205-17-0, the main research area is hydroformylation safrole isosafrole rhodium serum albumin catalyst.

The hydroformylation reaction on safrole and isosafrole has been reinvestigated. An aqueous biphasic process, with a recyclable nanostructured Rh catalyst associated with a human serum albumin, was realized in isosafrole to afford a pleasant new aldehydic odorant mixture containing about 75% of valuable 3-benzo[1,3]dioxol-5-yl-2-methyl-propionaldehyde.

Chimica e l’Industria (Milan, Italy) published new progress about Blood serum albumins Role: CAT (Catalyst Use), USES (Uses) (human). 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

Marchetti, Mauro published the artcileAqueous biphasic hydrogenations catalyzed by rhodium and iridium complexes modified with human serum albumin, SDS of cas: 1205-17-0, the main research area is biphasic hydrogenations catalysis rhodium iridium complex; catalyst human serum albumin unsaturated aldehyde.

Water soluble complexes derived from the interaction between Rh(CO)2(acac) and [Ir(COD)Cl]2, resp., with human serum albumin (HSA), were employed in the aqueous biphasic hydrogenation of α,β-unsaturated compounds as 2-cyclohexen-1-one (I), 2-butenal (V), 3-phenyl-2-propenal (IX) and 3-aryl-2-methyl-2-propenals (XIII and XVII). Both catalytic systems Rh/HSA and Ir/HSA showed to be very active in the hydrogenation of ketone I even at low temperature and hydrogen pressure; in particular, the rhodium based catalyst showed to be very selective affording exclusively cyclohexanone (II). The α,β-unsaturated aldehydes investigated required higher temperature (up to 60°) and pressure (5 MPa) to obtain good conversions. In this case Rh/HSA resulted to be more active than Ir based catalyst. In all cases both Rh/HSA and Ir/HSA were easily recycled without significant loss of activity.

Applied Catalysis, A: General published new progress about Blood serum albumins Role: CAT (Catalyst Use), USES (Uses) (human). 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

Bayrak, Cetin published the artcileThe first synthesis of phenylpropanoid derivative bromophenols including natural products: Formation of an indene derivative compound, Safety of 4-Methoxyphenylacetic acid, the main research area is phenylpropanoid bromophenol synthesis indene derivative.

Synthesis of the natural bromophenols 3,4-dibromo-5-(butoxymethyl)benzene-1,2-diol (I), (E)-3-(2,3-dibromo-4,5-dihydroxyphenyl)-2-methylacrolein (II, 7), 3,4-dibromo-5-(3-hydroxy-2-methylpropyl)benzene-1,2-diol (III) and 3-(2,3-dibromo-4,5-dihydroxyphenyl)-2-phenylpropanoic acid (IV) is reported for the first time. An indene-derived compound (V, 12) was formed during attempts to synthesize the bromophenol 7. The formation of compound 12 is discussed.

Tetrahedron published new progress about Bromophenols Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Nguyen, Thanh Binh published the artcileSulfur-Promoted Decarboxylative Sulfurative Hexamerization of Phenylacetic Acids: Direct Approach to Hexabenzylidyne Tetrasulfides, Product Details of C9H10O3, the main research area is sulfur promoted decarboxylative sulfurative hexamerization phenylacetic acid; preparation hexabenzylidyne tetrasulfide.

During our experiments aimed at understanding the reaction pathways by which arylacetic acids were oxidatively decarboxylated and condensed with different nucleophiles in the presence of elemental sulfur, these acids have been treated with sulfur powder in DMSO (DMSO) and N-methylpiperidine in the absence of nucleophiles, producing a remarkable sym. sulfurated hexamer consisting of six benzylidyne moieties and four sulfur atoms.

Organic Letters published new progress about Condensation reaction (decarboxylative sulfurative hexamerization). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Li, Mao-Lin published the artcileHighly enantioselective carbene insertion into N-H bonds of aliphatic amines, HPLC of Formula: 104-01-8, the main research area is diazo ester amine aliphatic copper aminothiourea chiral carbene insertion; amino acid ester stereoselective preparation.

Aliphatic amines strongly coordinate, and therefore easily inhibit, the activity of transition-metal catalysts, posing a marked challenge to nitrogen-hydrogen (N-H) insertion reactions. We report highly enantioselective carbene insertion into N-H bonds of aliphatic amines using two catalysts in tandem: an achiral copper complex and chiral amino-thiourea. Coordination by a homoscorpionate ligand protects the copper center that activates the carbene precursor. The chiral amino-thiourea catalyst then promotes enantioselective proton transfer to generate the stereocenter of the insertion product. This reaction couples a wide variety of diazo esters and amines to produce chiral a-alkyl a-amino acid derivatives

Science (Washington, DC, United States) published new progress about Aliphatic amines 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

Pearson, Colin M. published the artcileA Regio- and Stereodivergent Synthesis of Homoallylic Amines by a One-Pot Cooperative-Catalysis-Based Allylic Alkylation/Hofmann Rearrangement Strategy, Category: isoquinoline, the main research area is perfluorophenyl alkanoate allyl electrophile alkanol tandem alkylation Hofmann rearrangement; methyl alkenyl carbamate diastereoselective enantioselective regioselective preparation; alkylation; amines; ammonium enolates; palladium; rearrangement.

A modular synthetic route to linear and branched homoallylic amines that operates through a sequential one-pot Lewis base/transition-metal catalyzed allylic alkylation/Hofmann rearrangement strategy. This protocol was operationally trivial, proceeded from simple and easily prepared substrates and catalysts and enabled all aspects of regio- and stereoselectivity to be controlled through a conserved exptl. protocol. Overall, the high levels of enantio-, regio- and diastereoselectivity obtained, in concert with the ability to access orthogonally protected or free amines, render this a straightforward and effective approach for the preparation of useful enantioenriched homoallylic amines. The utility of the products in the context of pharmaceutical synthesis were also demonstrated.

Angewandte Chemie, International Edition published new progress about Aliphatic alcohols 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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Biswal, Priyabrata published the artcilePalladium-Catalyzed Synthesis of α-Methyl Ketones from Allylic Alcohols and Methanol, Application In Synthesis of 86-51-1, the main research area is methyl ketone preparation; diaryl propenol alc isomerization methylation palladium catalyst; aryl propenol alc isomerization methylation palladium catalyst.

One-pot synthesis of α-Me ketones RC(O)CH(R1)CH2R2 (R = Ph, 4-methoxyphenyl, naphthalen-2-yl, furan-2-yl, etc.; R1 = Me, Et, n-Bu; R2 = H, Ph, naphthalen-1-yl, thiophen-2-yl, etc.) starting from 1,3-diaryl propenols RCH(OH)CH=CHR2 or 1-aryl propenols RCH(OH)CH=CH2 and methanol as a C1 source is demonstrated. This one-pot isomerization-methylation is catalyzed by com. available Pd(OAc)2 with H2O as the only byproduct. Mechanistic studies and deuterium labeling experiments indicate the involvement of isomerization of allyl alc. followed by methylation through a hydrogen-borrowing pathway in these isomerization-methylation reactions.

Advanced Synthesis & Catalysis published new progress about Aliphatic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Application In Synthesis of 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xu, Chuangchuang published the artcileBF3·OEt2-promoted tandem Meinwald rearrangement and nucleophilic substitution of oxiranecarbonitriles, Synthetic Route of 104-01-8, the main research area is cyano aryloxirane nucleophile acid tandem Meinwald rearrangement nucleophilic substitution; benzeneacetamide preparation regioselective microwave irradiation green chem; aryl acetic acid preparation regioselective microwave irradiation green chem; phenylacetate preparation regioselective microwave irradiation green chem.

Tandem Meinwald rearrangement and nucleophilic substitution of oxiranenitriles was realized. Arylacetic acid derivatives were readily synthesized from 3-aryloxirane-2-carbonitriles with amines, alcs., or water in the presence of boron trifluoride under microwave irradiation, and the designed synthetic strategy includes introducing a cyano leaving group into arylepoxides and capturing the in-situ generated toxic cyanide with boron trifluoride, making the reaction efficient, safe and environmentally benign. The reaction occurred through an acid-promoted Meinwald rearrangement, producing arylacetyl cyanides, followed by an addition-elimination process with nitrogen or oxygen-containing nucleophilic amines, alcs. or water. The current method provided a new application of the tandem Meinwald rearrangement.

Organic & Biomolecular Chemistry published new progress about Aliphatic alcohols 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