Month: November 2022

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

Uyanik, Muhammet published the artcileHypoiodite-catalysed oxidative homocoupling of arenols and tandem oxidation/cross-coupling of hydroquinones with arenes, Related Products of isoquinoline, the main research area is biarenol biquinone preparation; arenol oxidative homocoupling hypoiodite catalyst; aryl quinone preparation; hydroquinone arene tandem oxidation coupling hypoiodite catalyst.

The hypoiodite-catalyzed oxidative C-C homocoupling of arenols to biarenols or biquinones using aqueous hydrogen peroxide as an oxidant was reported. In addition, by combining hypoiodite catalysis and lipophilic Lewis acid-assisted Bronsted acid catalysis under aqueous conditions, a tandem oxidation/cross-coupling reaction of hydroquinones with electron-rich arenes was achieved. These results highlighted the substantial scope of hypoiodite/acid co-catalysis for use in oxidative coupling reactions.

Chemical Communications (Cambridge, United Kingdom) published new progress about Biaryls Role: SPN (Synthetic Preparation), PREP (Preparation). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Yafei published the artcileA copper-catalyzed approach for the synthesis of asymmetrical disubstituted 1,2,4-thiadiazoles via elemental sulfur-mediated decarboxylative redox cyclization, SDS of cas: 104-01-8, the main research area is thiadiazole preparation; arylacetic acid amidine decarboxylative redox cyclization copper catalyst.

The various asym. disubstituted 1,2,4-thiadiazoles I (R = Ph, 2,5-dimethylphenyl, naphthalen-2-yl, thiophen-2-yl, etc.; R1 = H, Me, CF3, Ph) are smoothly prepared by copper-catalyzed approach, which employed arylacetic acids RCH2C(O)OH and amidines 4-R1C6H4C(=NH.HCl)NH2 as substrates, and elemental sulfur to mediate decarboxylative redox cyclization. The advantages of this method are simple, efficient, and ligand-free. In addition, this method can provide products I in moderate to good yields.

Tetrahedron Letters published new progress about Benzamidines 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

Bhat, Mashooq A. published the artcileBiginelli synthesis of novel dihydropyrimidinone derivatives containing phthalimide moiety, Application In Synthesis of 86-51-1, the main research area is isoindolylphenylcarbonyl dihydropyrimididnone preparation; dimethylaminopropenoylphenyl isoindole urea benzaldehyde Beginelli reaction.

Novel Biginelli compounds, 5-benzoyl-substituted phenyl-3,4-dihydropyrimidin-2(1H)-one-1H-isoindole-1,3(2H)- dione were synthesized from enaminone, 2-{4-[(2E)-3-(dimethylamino)prop-2-enoyl]phenyl}-1H-isoindole-1,3(2H)- dione, which was synthesized by refluxing 2-(4-acetylphenyl)-1H-isoindole-1,3(2H)-dione, with dimethylformamidedimethylacetal (DMF-DMA) without solvent for 12 h. The compound 2-(4-acetylphenyl)-1H-isoindole-1,3(2H)-dione was obtained by reacting phthalic anhydride with para-aminoacetophenone in glacial acetic acid for 2 h. This method was employed to synthesize the dihydropyrimidinone derivatives containing phthalimide moiety. Structures of all the synthesized compounds were characterized by spectroscopic methods.

Journal of Chemistry published new progress about Aryl ketones 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

Liu, Feipeng published the artcilePalladium/Norbornene-Catalyzed Indenone Synthesis from Simple Aryl Iodides: Concise Syntheses of Pauciflorol F and Acredinone A, Recommanded Product: 4-Methoxyphenylacetic acid, the main research area is acredinone A synthesis; pauciflorol F formal synthesis; indenone preparation annulation; acredinone A; indenone; norbornene; palladium; pauciflorol F.

To show the synthetic utility of palladium/norbornene (Pd/NBE) cooperative catalysis, here we report concise syntheses of indenone-based natural products, pauciflorol F and acredinone A, which are enabled by direct annulation between aryl iodides and unsaturated carboxylic acid anhydrides. Compared to the previous indenone preparation approaches, this method allows simple aryl iodides to be used as substrates with complete control of the regioselectivity. The total synthesis of acredinone A features two different Pd/NBE-catalyzed ortho acylation reactions for constructing penta-substituted arene cores, including the development of a new ortho acylation/ipso borylation.

Angewandte Chemie, International Edition published new progress about Aryl iodides 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, Recommanded Product: 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem