Day: November 16, 2022

Ghosh, Swarbhanu published the artcilePalladium Grafted Functionalized Nanomaterial: An Efficient Catalyst for the CO2 Fixation of Amines and Production of Organic Carbamates, SDS of cas: 5961-59-1, the main research area is reusable polystyrene support palladium nanocatalyst preparation thermal stability; amine carbon dioxide palladium nanocatalyst formylation; amide preparation green chem; dimethyl carbonate amine palladium nanocatalyst carboxylation; carbamate preparation green chem.

An environmentally benign synthetic studies of N-formylated amine derivatives by carbon dioxide fixation of amines was investigated in presence of Merrifield resin supported palladium nanomaterial (Pd-PS-amtp catalyst) at ambient temperature Poly(methylhydrosiloxane) was employed as a susceptible hydride transferring agent in the present CO2 fixation reaction. Further this catalyst exhibited an extended catalytic activity for the production of organic carbamates from di-Me carbonate and aromatic amines. The Pd-PS-amtp nanomaterial was produced by two step strategies and systematically characterized by FTIR, UV-Vis, FE-SEM and TGA-DTA anal. The benefits of this system were quite economical, high recycling efficiency and consuming short reaction time which allowed significant product yield. The production of organic carbamates in presence of the present catalyst was a phosgene-free procedure where di-Me carbonate (DMC) was utilized both as carboxylating agent and solvent. The recovery of Pd-PS-amtp nanomaterial was easily performed after the reactions and recyclable up to six times without considerable reduction in catalytic activity.

ChemistrySelect published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, SDS of cas: 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Mishiro, Kenji published the artcileEfficiency Enhancement of a Photocatalytic Decarbonylation of an Aminocyclopropenone by Benzothiophene Substitution, Safety of 1,3-Dimethoxybenzene, the main research area is aminocyclopropenone photocatalytic decarbonylation substituent effect benzothiophenyl dehydration condensation.

To improve the efficiency of the photocatalytic decarbonylation of cyclopropenones, the effects of substituents on cyclopropenone were explored. A benzothiophene-substituted aminocyclopropenone exhibited significantly improved decarbonylation efficiency to produce the corresponding ynamine, which worked as a potent dehydration condensation agent. The benzothiophene derivative was applicable to the photocatalytic reaction in the presence of potential excited-state quenchers such as oxygen and anilines. The high catalyst sensitivity would be attributed to the involvement of triplet energy transfer reaction pathway, which was not observed in the reaction with previously reported aminocyclopropenones.

Journal of Organic Chemistry published new progress about Amides Role: SPN (Synthetic Preparation), PREP (Preparation). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Safety of 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Chen, Xiao Yun published the artcileGreen H2O-Promoted Solvent-Free Synthesis of Enaminocarbonyl Compounds with High Stereoselectivity from Electron-Deficient Terminal Alkynes, HPLC of Formula: 5961-59-1, the main research area is enaminocarbonyl preparation diastereoselective green chem solvent free; terminal alkyne amine hydroamination.

A green H2O-promoted solvent-free hydroamination of electron-deficient terminal alkynes with amines has been developed. All secondary amines, including aliphatic and aromatic amines, gave the corresponding (E)-enamines in good to excellent yields, whereas primary aromatic amines afforded Z-configured products in moderate yields. Propiolates, propyn-1-ones, propynamides, and 1-(ethynylsulfonyl)-4-methylbenzene were explored in this Michael addition

Synlett published new progress about Alkynes, α- 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, HPLC of Formula: 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Demidoff, Felipe C. published the artcileCross-Coupling Reactions with 2-Amino-/Acetylamino-Substituted 3-Iodo-1,4-naphthoquinones: Convenient Synthesis of Novel Alkenyl- and Alkynylnaphthoquinones and Derivatives, Formula: C9H10O3, the main research area is styryl naphthoquinone green preparation diastereoselective; amino iodo naphthoquinone styrene Heck palladium catalyst; alkynyl naphthoquinone preparation; acetylamino iodo naphthoquinone alkyne cross coupling copper mediated; triazole naphthoquinone hybrid preparation; alkyne azide click.

The applications of 2-amino-/acetylamino-substituted 3-iodo-1,4-naphthoquinones in cross-coupling reactions were described to successfully afford sixteen novel 3-styryl-1,4-naphthoquinones (amino-stilbene-quinone hybrids) I [R = Ph, 4-MeC6H4, 1,3-benzodioxol-5-yl, etc.] and four 3-alkynyl-1,4-naphthoquinones II [R1 = TMS, CH2OH, 4-MeOC6H4OCH2, 4-ClC6H4OCH2] in overall good yields. Interestingly, the alkynylated derivatives could be obtained from ligand- and Pd-free CuI-mediated cross-coupling reactions, after extensive investigations to exclude Pd as a co-catalyst. Lastly, the desilanized terminal alkyne was subjected to click chem. reactions to gave two novel triazole-1,4-naphthoquinone hybrids III [R2 = H, OMe].

Synthesis published new progress about Alkynes, α- 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, Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Wang, Fu-Li published the artcileMechanism-based ligand design for copper-catalysed enantioconvergent C(sp3)-C(sp) cross-coupling of tertiary electrophiles with alkynes, COA of Formula: C9H10O3, the main research area is tertiary alkyl halide alkyne enantioconvergent radical cross coupling copper.

A general copper-catalyzed enantioconvergent C(sp3)-C(sp) cross-coupling of diverse racemic tertiary alkyl halides RX [R = 1-cyclohexyl-1-[(naphthalen-1-yl)carbamoyl]ethyl, 1-phenyl-1-(phenylcarbamoyl)propyl, 1-[(4-bromophenyl)carbamoyl]-1-phenylpropyl, etc.; X = Cl, Br] and I (R1 = Et, cyclopropyl, benzyl, etc.; R2 = Et, Ph, 3-bromophenyl, etc.) with terminal alkynes R3CCH (R3 = Ph, cyclohexen-1-yl, thiophen-2-yl, etc.) (87 examples) was demonstrated. Key to the success is the rational design of chiral anionic N,N,N-ligands, e.g., II (R4 = t-butylphenyl) tailor-made for the computationally predicted outer-sphere radical group transfer pathway. This protocol provides a practical platform for the construction of chiral C(sp3)-C(sp/sp2/sp3) bonds, allowing for expedient access to an array of synthetically challenging quaternary carbon building blocks of interest in organic synthesis and related areas.

Nature Chemistry published new progress about Alkynes, α- 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, COA of Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Li, Chenchen published the artcileOxidation of Alkynyl Boronates to Carboxylic Acids, Esters, and Amides, SDS of cas: 104-01-8, the main research area is carboxylate ester amide preparation alkynyl boronate oxidation; alkynes; boron; carboxylic acids; oxidation; synthetic methods.

A general efficient protocol was developed for the synthesis of carboxylic acids, esters, and amides through oxidation of alkynyl boronates, generated directly from terminal alkynes. This protocol represents the first example of C(sp)-B bond oxidation This approach displays a broad substrate scope, including aryl and alkyl alkynes, and exhibits excellent functional group tolerance. Water, primary and secondary alcs., and amines are suitable nucleophiles for this transformation. Notably, amino acids and peptides can be used as nucleophiles, providing an efficient method for the synthesis and modification of peptides. The practicability of this methodol. was further highlighted by the preparation of pharmaceutical mols.

Angewandte Chemie, International Edition published new progress about Alkynes, α- 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, SDS of cas: 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Ishida, Naoki published the artcileCarboxylation of Benzylic and Aliphatic C-H Bonds with CO2 Induced by Light/Ketone/Nickel, Related Products of isoquinoline, the main research area is ketone nickel carboxylation benzylic aliphatic carbon dioxide.

A photoinduced carboxylation reaction of benzylic and aliphatic C-H bonds with CO2 is developed. Toluene derivatives capture gaseous CO2 at the benzylic position to produce phenylacetic acid derivatives when irradiated with UV light in the presence of an aromatic ketone, a nickel complex, and potassium tert-butoxide. Cyclohexane reacts with CO2 to furnish cyclohexanecarboxylic acid under analogous reaction conditions. The present photoinduced carboxylation reaction provides a direct access from readily available hydrocarbons to the corresponding carboxylic acids with one carbon extension.

Journal of the American Chemical Society published new progress about Alkylarenes 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, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Zhang, Ming-Zhong published the artcileMetal-free iodic acid-triggered cascade cyclization of alkenes with N-hydroxyphthalimide: A simple and mild access to aminooxylated 3,3-disubstituted 2-oxindoles, Name: 4-Methoxy-N-methylaniline, the main research area is arylacrylamide hydroxyphthalimide hydroxy succinimide iodic acid green radical cyclization; oxindole preparation.

An efficient iodic acid-triggered radical cyclization of alkenes with N-hydroxyphthalimide (NHPI) was described. This operationally simple method was conducted under metal- and catalyst-free conditions, producing the precious aminooxylated 3,3-disubstituted 2-oxindoles in good to high yields. Green and readily available HIO3 was used as a sole and safe initiator, making this protocol highly advantageous.

Tetrahedron Letters published new progress about Acrylamides 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, Name: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jiao, Jing published the artcileIodine-Promoted Metal-Free Cyclization and O/S Exchange of Acrylamides with Thiuram: One-Step Synthesis of Quinolino-2-thiones, Quality Control of 5961-59-1, the main research area is quinolinothione one step synthesis; acrylamide thiuram cyclization.

A one-step cyclization and O/S exchange reaction of readily available acrylamides in the presence of iodine and thiuram has been developed. The reaction provides an efficient approach for the synthesis of highly important heterocycle quinolino-2-thiones with diverse substitution patterns.

Journal of Organic Chemistry published new progress about Acrylamides 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

Chen, Yu published the artcileTotal Synthesis of Denigrin E and Its Oxidative Conversion into Co-occurring Metabolite Denigrin D, COA of Formula: C9H10O3, the main research area is denigrin E total synthesis oxidative rearrangement denigrin D.

An unambiguous, six-step total synthesis of denigrin E (5) from anisaldehyde 22 has been achieved, confirming the structure of this marine natural product. On treatment with t-BuOOH/Mo(CO)6, compound 5 undergoes a unique and possibly biogenetically relevant oxidative rearrangement to generate the co-occurring metabolite denigrin D (4), which is obtained in 61% yield.

Organic Letters published new progress about Molecular structure, natural product (structure confirmation). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, COA of Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem