Category: isoquinoline

Tripathi, Vishwa Deepak published the artcileβ-Cyclodextrin mediated multicomponent synthesis of spiroindole derivatives in aqueous medium, Formula: C9H10O3, the main research area is spiroindole quinazoline green preparation; isatin isatoic anhydride amine multicomponent cyclodextrin catalyst; dihydroquinazoline green preparation; benzaldehyde isatoic anhydride amine multicomponent cyclodextrin catalyst.

An efficient β-cyclodextrin catalyzed multicomponent synthetic protocol was developed for the synthesis of spiro[indoline-3,2′-quinazoline]-2,4′(3’H)-diones I [R1 = H, F, Br, NO2; R2 = H, Et, n-Pr, Bn; R3 = Ph, 4-MeC6H4, 4-ClC6H4, etc.] from isatoic anhydride, isatins and primary amines in aqueous medium. This methodol. offered a convenient method for the synthesis of spiroindole quinazolines in excellent yields. To extend synthetic utility of protocol some dihydro-quinazolines II [R4 = 3-Me, 2,3-(OMe)2, 4-F, etc.] were also synthesized from isatoic anhydride, benzaldehydes and primary amines.

Asian Journal of Chemistry 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, Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Maddila, Surya N. published the artcileFacile One-pot Synthesis of Arylsulfonyl-4H-pyrans Catalyzed by Ru Loaded Fluorapatite, SDS of cas: 86-51-1, the main research area is arylsulfonyl pyran preparation green chem; aldehyde dimedone phenylsulfonyl acetonitrile three component reaction.

A novel ecofriendly cascade reaction for the synthesis of arylsulfonyl-4H-pyran derivatives by a three component fusion reaction of chosen aldehyde, dimedone and phenylsulfonyl acetonitrile at room temperature using ruthenia doped fluorapatite (RuO2/FAp) as recyclable catalyst is reported. Different percentages of RuO2/FAp materials were prepared and characterized by FT-IR, P-XRD, BET, SEM-EDX and TEM anal. Attractive features of the synthetic approach are operational simplicity, cost-effectiveness, short reaction time and excellent yields. Easily recoverable and reusable catalyst material without any deceptive loss of catalytic activity up to seven cycles is addnl. benefit.

ChemistrySelect 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

Devi, Lagudu published the artcileA rapid, sustainable and environmental friendly protocol for the catalyst-free synthesis of 2-methyl-5-oxo-hexahydroquinoline-3-carboxylate via ultrasonic irradiation, Application In Synthesis of 86-51-1, the main research area is methyl oxo hexahydroquinoline carboxylate green preparation ultrasonic irradiation; benzaldehyde cyclohexanedione benzyl acetoacetate multicomponent.

A facile, economic, highly valuable and sustainable protocol for the synthesis of substituted 2-methyl-5-oxo-hexahydroquinoline-3-carboxylate derivatives I [R = 2-FC6H4, 2-BrC6H4, 4-N(Me)2C6H4, etc.] was developed via one-pot, the multicomponent reaction of various benzaldehydes, 1,3-cyclohexanedione, benzyl acetoacetate and ammonium acetate in EtOH under ultrasound irradiation at room temperature condition. Employment of green solvent and catalyst-free conditions made this approach very fascinating from cost-effective and eco-friendly viewpoints. Mainly, this protocol offered various benefits such as easy handling, cleaner reaction, operational simplicity, simple work-up system, excellent yields (92-98%), rapid reaction time and condensed environmental consequences.

Chemical Data Collections 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

Devi, Lagudu published the artcileA green, efficient protocol for the catalyst-free synthesis of tetrahydro-1H-pyrazolo-[3,4-b]-quinolin-5(4H)-ones supported by ultrasonic irradiation, Name: 2,3-Dimethoxybenzaldehyde, the main research area is amino phenylpyrazole benzaldehyde dimedone three component reaction green chem; diphenyl tetrahydropyrazoloquinolinone preparation ultrasonication.

A green and efficient protocol for the one-pot, multicomponent, catalyst-free synthesis of tetrahydro-1H-pyrazolo[3,4-b]quinolin-5(4H)-ones I [R = 2-hydroxyphenyl, 4-ethylphenyl, 3-nitrophenyl, etc.] from the reaction of 5-amino-3-methyl-1-phenylpyrazole, benzaldehydes and dimedone in ethanol as green solvent under ultrasound irradiation was described. This protocol offered several benefits such as simple handling, easy workup process, waste-free, milder reaction conditions, cleaner reaction, environment-friendly, short reaction times, absence of any tedious purification and excellent yields.

Chemical Data Collections 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, Name: 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Qian, Bing-Feng published the artcileNew (μ-oxo)bis(μ-carboxylato)diruthenium(III) complexes containing 1,4,7-trimethyl-1,4,7-triazacyclononane ligands, Related Products of isoquinoline, the main research area is dinuclear ruthenium trimethyltriazacyclononane benzoato phenylacetato complex catalyst preparation electrochem; crystal structure dinuclear ruthenium trimethyltriazacyclononane benzoato phenylacetato complex.

Treatment of [(Me3tacn)RuCl3·H2O] (Me3tacn = 1,4,7-trimethyl-1,4,7-triazacyclononane) with substituted benzoic acid or phenylacetic acid, in water in the presence of potassium hexafluorophosphate gave cationic dinuclear Ru(III)-Ru(III) (μ-oxo)bis(μ-carboxylato) complexes [(Me3tacn)2Ru2(μ-O)(μ-OOCR)2](PF6)2 (R = Ph, 1; -py, 2; -C6H4-2-Cl, 3; -C6H3-2,4-Cl2, 4; -CH2C6H4-2-CH3, 5; -CH2C6H4-4-CH3, 6; -CH2C6H4-4-OCH3, 7; -CH2C6H4-4-Cl, 8). All complexes are well characterized by IR, UV/visible and mass spectroscopies, and their electrochem. properties were also investigated. The mol. structures of 1, 2·2C3H6O, 5·2C3H6O, 7 and 8 were also established by single-crystal x-ray diffraction. The photocatalytic properties for H2 evolution by water splitting of complexes 1, 2, 3, 5, and 7 were also investigated.

Inorganica Chimica Acta published new progress about Benzoic acids 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

Schuhmacher, Anne published the artcileCatalytic Synthesis of Potassium Acyltrifluoroborates (KATs) from Boronic Acids and the Thioimidate KAT Transfer Reagent, Product Details of C2H6N2O, the main research area is potassium acyltrifluoroborate preparation; boronic acid thioimidate transfer reagent cross coupling palladium catalyst; acylboron compounds; boronic acids; cross-coupling; synthetic methods; zwitterions.

We report the synthesis of potassium acyltrifluoroborates (KATs) by a palladium-catalyzed cross-coupling of boronic acids and the thioimidate KAT transfer reagent. The combination of widely available aryl- and vinylboronic acids with com. available thioimidate using catalytic PdII and a CuII additive enables the preparation of KATs in high yields and with good functional group tolerance. This formal insertion of CO into organoboronic acids can also be applied to boronic acid pinacol esters and potassium organotrifluoroborates using a slightly modified procedure. The cross-coupling can be telescoped into the one-pot synthesis of amides and α-aminotrifluoroborates by exploiting the unique chem. of KATs and their trifluoroborate iminium (TIM) derivatives

Angewandte Chemie, International Edition published new progress about Boronic acids Role: RCT (Reactant), RACT (Reactant or Reagent). 598-50-5 belongs to class isoquinoline, name is 1-Methylurea, and the molecular formula is C2H6N2O, Product Details of C2H6N2O.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Tran, Van Hieu published the artcilePractical direct synthesis of N-aryl-substituted azacycles from N-alkyl protected arylamines using TiCl4 and DBU, SDS of cas: 5961-59-1, the main research area is aryl substituted azacycle preparation; alkyl protected arylamine cyclic ether titanium tetrachloride diazabicyclo undecene.

A novel transformation of N-alkyl protected arylamines and cyclic ethers into N-aryl substituted azacycles is described. Alkyl groups have been used for the protection of amines in organic syntheses. In this synthesis, N-alkyl protected arylamines were reacted with cyclic ethers in the presence of TiCl4 and DBU, crucial reagents affording five- and six-membered azacycles. In particular, utilization of the novel TiCl4/DBU-mediated reaction allows various N-alkyl protected arylamines such as N-methyl-, N-ethyl-, N-iso-Pr, and N-tert-Bu arylamines to be readily converted into N-aryl substituted azacycles in high yields. This practical approach using various N-alkyl arylamines leads to the efficient preparation of azacycles.

Organic & Biomolecular Chemistry published new progress about Cyclic ethers 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, SDS of cas: 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Byrne, Liam published the artcileEnantioselective Synthesis of Atropisomeric Biaryls using Biaryl 2,5-Diphenylphospholanes as Ligands for Palladium-Catalysed Suzuki-Miyaura Reactions, HPLC of Formula: 151-10-0, the main research area is biaryl diphenylphospholane preparation; atropisomeric biaryl heterobiaryl preparation; boronic acid aryl bromide asym Suzuki Miyaura palladium catalyst.

Herein, the development of biaryl 2,5-diphenylphospholanes as a new class of C2-sym., monodentate ligands for asym. Suzuki-Miyaura (ASM) reactions is reported. Screening of a series of exemplary phospholanes led to the identification of two ligands that were used to prepare a range of atropisomeric biaryl and heterobiaryl products with good to excellent levels of enantioselectivity (up to 97:3 e.r.) under mild conditions. DFT studies suggest that the formation of a constraining ligand pocket and coordination of one of the biaryl methoxy groups in the optimized ligands to the metal center is crucial for restricting conformational freedom in the bond-forming step.

Advanced Synthesis & Catalysis published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, HPLC of Formula: 151-10-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lekky, Anek published the artcileStereoselective Convergent Synthesis of Tetrahydro-5H-benzo[c]fluorene via Nine-Membered Ring-Closing Metathesis and Transannular Acid-Mediated Cyclization/Nucleophilic Addition, Related Products of isoquinoline, the main research area is tetrahydrobenzofluorene stereoselective preparation ring closing metathesis transannular acid cyclization.

The diene Me ethers or acetates, constructed from the Li-Br exchange/addition reactions of 2-vinylbenzaldehydes and 2-(but-3-en-1-yl)bromoarenes followed by etherification or acetylation of the corresponding alcs., smoothly underwent the ring-closing metathesis (RCM) by using Hoveyda-Grubbs II as a catalyst to provide the corresponding benzannulated (Z)-cyclononenes as single products in good yields (up to 75%). The ensuing one-pot acid-mediated transannular cyclization/nucleophilic addition at C7 furnished the corresponding tetrahydro-5H-benzo[c]fluorenes as single stereoisomers with the exclusive cis stereochem. at the ring junction (C5-C6) and trans at the site of nucleophilic attack (C6-C7) on the three contiguous stereogenic centers in good to excellent yield (up to 94%). The developed strategy was general; the reaction conditions were compatible with hydride, azide, and electron-rich aromatics as nucleophiles. In addition, various methoxylated benzannulated cyclononene acetates could be employed as substrates. Thus, tetrahydro-5H-benzo[c]fluorenes could be prepared in four steps from appropriately substituted bromoarenes and benzaldehydes in good yields (up to 56%) with excellent stereo- and regio-control.

Journal of Organic Chemistry published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Gomez-Angel, Andres R. published the artcileSynthesis and functionalization of a bifunctional normorphan 3D building block for medicinal chemistry, COA of Formula: C8H10O2, the main research area is bifunctional normorphan 3D building block diastereoselective preparation.

A multi-gram-scale synthetic route to a novel, bifunctional normorphan 3D building block bearing orthogonally reactive vinyl MIDA boronate and N-2,4-dimethoxybenzyl (DMB) amide functional handles I was developed. Synthetic manipulation at each of the functional handles was demonstrated including Suzuki-Miyaura cross-coupling, exo-diastereoselective hydrogenation, N-DMB group removal and lactam reduction Normorphan cores derived from the building block satisfied AstraZeneca’s ‘rule of 2’ for building blocks and had a high fraction of sp3 hybridized carbon atoms (Fsp3). A virtual lead-like library of 344 compounds derived from the building block had attractive lead-like properties. The 3D building block was commercialised by Redbrick Mol. and was available for purchase.

Tetrahedron published new progress about Aryl bromides Role: RCT (Reactant), RACT (Reactant or Reagent). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, COA of Formula: C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem