Category: 86-51-1

Farooq, Saleem published the artcileDihydropyrimidinones: efficient one-pot green synthesis using Montmorillonite-KSF and evaluation of their cytotoxic activity, Application In Synthesis of 86-51-1, the main research area is Montmorillonite KSF support heteropoly acid catalyst preparation surface area; aldehyde acetoacetate urea heterogeneous catalyst Biginelli reaction green chem; dihydropyrimidinone preparation antitumor cytotoxicity SAR docking.

A simple, efficient, cost-effective, recyclable and green approach was developed for the synthesis of new dihydropyrimidinone analogs I [X = O, S; R = Ph, (E)-2-(4-methoxyphenyl)vinyl, 1-chloro-3,4-dihydronaphthalenyl, etc.] via Biginelli reaction. The methodol. involved a multicomponent reaction catalyzed by “”HPA-Montmorillonite-KSF”” as a reusable and heterogeneous catalyst. This method gave an efficient and much improved modification of the original Biginelli reaction, in terms of yield and short reaction times under solvent free conditions. All the derivatives were subjected to cytotoxicity screening against a panel of four different human cancer cell lines viz. colon (Colo-205), prostate (PC-3), leukemia (THP-1) and lung (A549) to check their effect on percentage growth. MTT [3-(4,5-dimethylthiazol-yl)-diphenyl tetrazoliumbromide] cytotoxicity assay was employed to check IC50 values. Of the synthesized analogs, I [X = O, R = (E)-2-(4-methoxyphenyl)vinyl] showed the best activity with IC50 of 7.1 ± 0.8, 13.1 ± 1.4, 13.8 ± 0.9 and 14.7 ± 1.1μM against lung (A549), leukemia (THP-1), prostate (PC-3) and colon (Colo-205) cancer lines, resp. Synthesized compound I [X = O, R = (E)-2-(4-methoxyphenyl)vinyl] were further checked for its effect on cancer cell properties through clonogenic (colony formation) and scratch motility (wound healing) assays and thereby were found that it reduced both the colony formation and migratory properties of the lung cancer cell line (A549). Mol. docking studies were performed with I [X = O, R = (E)-2-(4-methoxyphenyl)vinyl], which showed its binding mode.

RSC Advances published new progress about Antitumor agents. 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

Li, Feng published the artcileMonodentate Transient Directing Group Enabled Pd-Catalyzed Ortho-C-H Methoxylation and Chlorination of Benzaldehydes, Related Products of isoquinoline, the main research area is ortho methoxylation benzaldehyde monodentate transient directing group; monodentate transient directing group ortho chlorination benzaldehyde.

We report Pd-catalyzed ortho-C-H methoxylation and chlorination of benzaldehydes by employing monodentate transient directing groups (TDGs) as an alternative strategy to bidentate TDGs. More importantly, a single crystal of benzaldehyde imine ortho-cyclopalladium intermediate was successfully obtained, and its structure was unambiguously determined by X-ray diffraction, which clearly showed that it was a binuclear palladium species bridged by a pyridone ligand. The utility of this approach was further demonstrated through the synthesis of key intermediates of natural products and drugs.

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, Related Products of isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yong, Qiyun published the artcilePalladium-catalyzed ortho-C(sp2)-H bromination of benzaldehydes via a monodentate transient directing group strategy, Quality Control of 86-51-1, the main research area is ortho bromobenzaldehyde preparation; benzaldehyde bromosuccinimide amino chlorobenzotrifluoride bromination catalyst palladium.

A facile and efficient monodentate transient directing group strategy was developed to enable the palladium-catalyzed ortho-C(sp2)-H bromination of benzaldehydes. A broad scope of benzaldehydes were transformed into the ortho-bromobenzaldehyde by employing 2-amino-5-chlorobenzotrifluoride as a monodentate transient directing group, demonstrating good functional group tolerance. Mild reaction conditions and no requirement for a silver salt were also features of this strategy.

Tetrahedron Letters published new progress about Bromination. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Quality Control of 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Pan, Wan-Chen published the artcileAn efficient synthesis of 6-benzyl-2-arylthieno[2,3-d]pyrimidin-4(3H)-ones catalyzed by HCl involving a Friedel-Crafts alkylation reaction, Formula: C9H10O3, the main research area is benzyl aryl thienopyrimidinone preparation; aminothiophenecarboxamide aldehyde tandem condensation cyclization Friedel Crafts HCl catalyst.

Aldehydes could underwent not only the subsequent condensation and cyclization with 2-aminothiophene-3-carboxamides to build a pyrimidine ring, but also a Friedel-Crafts alkylation reaction with thiophene moiety to gave unexpected 6-benzyl-2-arylthieno[2,3-d]pyrimidin-4(3H)-ones I [R1 = H, Cl, F, Me, MeO; R2 = H, Cl, F, MeO; Ar = Ph, 4-MeC6H4, 4-EtC6H4, 4-n-PrC6H4, 4-ClC6H4] and II [R3 = 2-MeOC6H4, 2-Br-4-FC6H3, 2-furyl, etc.] in good yields catalyzed by concentrated HCl.

Journal of Heterocyclic Chemistry published new progress about Condensation reaction. 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

Ji, Xiang published the artcileSynthesis of 1,2-Dihydroisoquinolines by a Modified Pomeranz-Fritsch Cyclization, SDS of cas: 86-51-1, the main research area is trifluoromethanesulfonamide trimethylsilyl triflate regioselective Pomeranz Fritsch cyclization; dihydroisoquinoline preparation.

Isoquinolines (IQs) and their derivatives are present in many natural products and biol. active small mols. Herein, we report a modified procedure for the classical Pomeranz-Fritsch protocol, which expands the scope of 1,2-dihydroisoquinoline (DHIQ) products. 1,2-DHIQs are an attractive branch point for the synthesis of IQs, but because of their innate reactivity, they have remained difficult to prepare We demonstrate that the Fujioka/Kita conditions, combining trimethylsilyl triflate (TMSOTf) and an amine base, activate dimethylacetals required for Pomeranz-Fritsch cyclization under sufficiently mild conditions to prepare a broad range of 1,2-DHIQ products. We also demonstrate the synthetic value of these DHIQs by further functionalization to either reduced tetrahydroisoquinoline (THIQ) or fully aromatized IQ natural products.

Journal of Organic Chemistry published new progress about Pomeranz-Fritsch cyclization (regioselective). 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

Chahal, Mandeep K. published the artcileMolecular Engineering of β-Substituted Oxoporphyrinogens for Hydrogen-Bond Donor Catalysis, Computed Properties of 86-51-1, the main research area is mol engineering oxoporphyrinogen bifunctional organocatalyst hydrogen bond donor catalysis; conjugate addition oxoporphyrinogen organocatalyst; sulfa Michael oxoporphyrinogen organocatalyst; Henry oxoporphyrinogen organocatalyst; aza Henry oxoporphyrinogen organocatalyst.

A new class of bifunctional hydrogen-bond donor organocatalyst using oxoporphyrinogens having increased intramol. hydrogen-bond donor distances is reported. Oxoporphyrinogens are highly non-planar rigid macrocycles containing a multiple hydrogen bond-forming binding site. In this work, we describe the first example of non-planar OxPs as hydrogen-bond donor catalysts prepared using a mol. engineering approach of the binding site for dual activation of substrates. The introduction of β-substituents is key to the catalytic activity and the catalysts are able to catalyze 1,4-conjugate additions and sulfa-Michael additions, as well as, Henry and aza-Henry reactions at low catalyst loadings (â‰?1 mol-%) under mild conditions (e.g., catalyst I). Preliminary mechanistic studies have been carried out and a possible reaction mechanism has been proposed based on the bi-functional activation of both substrates through hydrogen-bonding interactions.

European Journal of Organic Chemistry published new progress about Alkylation (selective alkylation of oxoporphyrinogen aldehydes). 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

Karmakar, Ujjwal published the artcilePd(II)-Catalyzed Direct Sulfonylation of Benzylamines Using Sodium Sulfinates, Recommanded Product: 2,3-Dimethoxybenzaldehyde, the main research area is palladium catalyst direct sulfonylation benzylamine sodium sulfinate; regioselective sulfonylated benzylamine preparation.

A Pd(II)-catalyzed direct sulfonylation of benzylamines with sodium sulfinates using a removable bidentate directing group is illustrated. The transformation is highly regioselective and tolerates wide functional groups. The mechanistic study reveals that radical species are involved in this reaction. This method delivers a direct synthetic strategy to obtain highly functionalized sulfonylated benzylamines.

Journal of Organic Chemistry published new progress about Regioselective synthesis. 86-51-1 belongs to class isoquinoline, name is 2,3-Dimethoxybenzaldehyde, and the molecular formula is C9H10O3, Recommanded Product: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xia, Yingqi published the artcileCatalytic Syn-Selective Nitroaldol Approach to Amphenicol Antibiotics: Evolution of a Unified Asymmetric Synthesis of (-)-Chloramphenicol, (-)-Azidamphenicol, (+)-Thiamphenicol, and (+)-Florfenicol, Name: 2,3-Dimethoxybenzaldehyde, the main research area is nitro diol preparation diastereoselective enantioselective Henry copper catalyst; aryl aldehyde nitroethanol.

A unified strategy for an efficient and high diastereo- and enantioselective synthesis of (-)-chloramphenicol, (-)-azidamphenicol, (+)-thiamphenicol, and (+)-florfenicol based on a key catalytic syn-selective Henry reaction was reported. The stereochem. of the ligand-enabled copper(II)-catalyzed aryl aldehyde Henry reaction of nitroethanol was first explored to forge a challenging syn-2-amino-1,3-diol structure unit with vicinal stereocenters with excellent stereocontrol. Multistep continuous flow manipulations were carried out to achieve the efficient asym. synthesis of this family of amphenicol antibiotics.

Journal of Organic Chemistry published new progress about Aryl aldehydes 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, Name: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Faisal, Muhammad published the artcileA highly promising approach for the one-pot synthesis of biscoumarins using HY zeolite as recyclable and green catalyst, Application In Synthesis of 86-51-1, the main research area is biscoumarin preparation; hydroxycoumarin HY zeolite green catalyst.

Biscoumarins, the bridge substituted dimers of 4-hydroxycoumarin, are distinguished derivatives of coumarin. In view of numerous pharmaceutical applications of biscoumarins, the construction of appropriate one-pot synthetic methods for their preparation has been a subject of great attention in recent years. In continuation of ongoing study for the construction of promising approaches for the preparation of biscoumarins, herein we report a zeolite-mediated methodol., in which zeolites, for example, NaY, HY, HZSM-5 and H-beta were employed as catalysts to investigate their catalytic potencies in the synthesis of biscoumarins. In this approach, aromatic aldehydes were treated with 4-hydroxycoumarin in the presence of zeolite catalyst in refluxing ethanol for 2-3 h to furnish biscoumarins in 80-96% yield. The yield of biscoumarins increased in the following order NaY < HZSM-5 < H-beta < HY.Aldehydes both with electron-donating and electron-withdrawing units underwent smooth conversion to their resp. biscoumarins without the development of any side products. The cost-effective, eco-friendly and ready available zeolite catalyst could be recovered and reused several times. This methodol. offers operational simplicity and avoids the use of toxic solvents and corrosive reagents. The present approach offers remarkable advantages such as high catalytic activity, straight-forward procedure, simple workup and low catalyst loading. Journal of Porous Materials published new progress about Aryl aldehydes 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

Titova, Yu. A. published the artcile4-(Het)aryl-4,7-dihydroazolopyrimidines and Their Tuberculostatic Activity, Name: 2,3-Dimethoxybenzaldehyde, the main research area is dihydrotriazolopyrimidine preparation antituberculosis SAR; dihydropyrazolopyridine preparation antituberculosis SAR.

Structural analogs of a promising antituberculous agent, dihydro[1,2,4]triazolo[1,5-a]pyrimidine-6-carboxylates I [R = Me, OEt, NH2, i-BuO, OBn; R1 = 2-thienyl, 3-thienyl, 2-O2NC6H4, 4-CO2HC6H4, 2,3-di-MeOC6H4] and Et 6-methyl-4-(thiophen-2-yl)-4,7-dihydro-2H-pyrazolo[3,4-b]pyridine-5-carboxylate were synthesized by three-component condensations of various aromatic or hetarom. aldehydes with several β-dicarbonyl compounds (CH acids) and 1H-1,2,4-triazol-5-amine or 1H-pyrazol-5-amine. The obtained compounds were evaluated for tuberculostatic activity and structure-activity relations were analyzed. Among the synthesized compounds, compound I [R = OEt; R1 = 2-O2NC6H4] proved to be most promising compound

Russian Journal of Organic Chemistry published new progress about Aryl aldehydes 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, Name: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem