Category: isoquinoline

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

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

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

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

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

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

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

Qiao, Huihao published the artcilePalladium-Catalyzed Direct Ortho-C-H Selenylation of Benzaldehydes Using Benzidine as a Transient Directing Group, Application In Synthesis of 86-51-1, the main research area is palladium catalyzed ortho selenylation benzaldehyde; diarylselenide preparation selenylation benzidine transient directing group.

Benzidine was found to be a novel transient directing group to enable Pd-catalyzed direct selenylation of inert C(sp2)-H bonds of benzaldehydes. Diverse diarylselenides were readily constructed in high efficiency and satisfactory yields with good functional group tolerance. The practical usage of the method was further demonstrated by enlarged reaction to gram scale and application in the facile access to two selenoxanthenes and one fluorescent probe.

Organic Letters published new progress about Benzaldehydes 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

Gangu, Kranthi Kumar published the artcileCatalytic activity of supra molecular self-assembled Nickel(II) coordination complex in synthesis of indeno-pyrimidine derivatives, SDS of cas: 86-51-1, the main research area is crystal structure nickel bipyridine pyridinedicarboxylate preparation catalyst indenopyrimidine green; aldehyde indanedione reaction guanidinium catalyst green nickel bipyridine pyridinedicarboxylate.

A supra mol. self-assembled Ni(II) coordination complex, formulated as [Ni2(2,6-pydc)2(μ-4,4’bpy)(H2O)4]·4H2O (2,6-pydcH2 = pyridine-2,6-dicarboxylic acid, 4,4’bpy = 4,4′-bipyridine) was synthesized under hydrothermal condition and characterized by single crystal x-ray diffraction, elemental anal., FTIR, powder x-ray diffraction, and thermo gravimetric anal. Single crystal x-ray diffraction anal. reveals that the complex crystallizes in the monoclinic space group P21/c with a 10.5237(6), b 20.1966(10), c 7.2366(4) Å, β = 106.96(1°) and displays a 3-dimensional supramol. network through H bond and C-H···π, C-O···π interactions. Ni(II) metal species in the structure possess coordinately unsaturated centers, which exhibited viable catalytic properties in the synthesis of eight different indeno-pyrimidine derivatives through 1-pot reaction involving benzaldehydes, indane-1,3-dione and guanidinium chloride in a green approach. With the reaction achieved in 15 min time interval in EtOH in excellent yields (87-98%), plus the good recyclability (up to 6 times) provides advantage to this complex in heterogeneous catalysis.

Polyhedron published new progress about Benzaldehydes 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, SDS of cas: 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Jureddi, Santhosh Kumar published the artcileSustainable Cs2O/ZrO2 oxide catalyst for the synthesis of 1,4-dihydropyridine analogues, Category: isoquinoline, the main research area is zirconia supported cesium oxide nanocatalyst preparation thermal stability; malononitrile acetylene dicarboxylate dimethylaniline benzaldehyde heterogeneous catalyst multicomponent reaction; amino cyano diphenyl dihydropyridine dicarboxylate preparation green chem.

Cesium oxide loaded on zirconia (Cs2O/ZrO2) was prepared as heterogeneous catalyst for the synthesis of 1,4-dihydropyridine analogs via a one-pot, multi-component reaction involving substituted benzaldehydes, malononitrile, dimethylaniline and dimethylacetylene dicarboxylate with good to excellent product yields (83 to 97%). The notable benefits of this facile approach was the use of ethanol as solvent and products were obtained in excellent yields with shorter reaction times. Catalyst was fully reusable with minor loss of activity up to six cycles. While, P-XRD, TEM and SEM anal. performances were revealed for the structural interpretation of Cs2O/ZrO2, the identity of products were established and confirmed by various spectral (1H NMR, 13C NMR, FT-IR and HRMS) techniques.

Journal of Applicable Chemistry (Lumami, India) published new progress about Benzaldehydes 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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem