Month: November 2022

Guin, Avishek published the artcileLewis Acid Catalyzed Ring-Opening 1,3-Aminothiolation of Donor-Acceptor Cyclopropanes Using Sulfenamides, Name: 4-Methoxy-N-methylaniline, the main research area is arylaminoalkyl arylthio malonic diester preparation; cyclopropane sulfenamide regioselective ring opening Lewis acid catalyst.

Yb(OTf)3 catalyzed mild and regioselective ring-opening 1,3-aminothiolation of donor-acceptor (D-A) cyclopropanes using sulfenamides has been demonstrated. The insertion of the C-C σ-bond of D-A cyclopropanes into the S-N σ-bond of sulfenamides allows the synthesis of diverse γ-aminated α-thiolated malonic diesters in moderate to good yields (up to 87%) with good functional group compatibility. The stereospecificity of the reaction was demonstrated using enantiomerically pure D-A cyclopropane.

Organic Letters published new progress about Cyclopropanes 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

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

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

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

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

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

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

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

Shamala, Devadas published the artcileZinc chloride catalyzed multicomponent synthesis of pyrazolopyridocoumarin scaffolds, SDS of cas: 86-51-1, the main research area is pyrazolopyridocoumarin preparation; hydroxycoumarin benzaldehyde alkyl aminopyrazole multicomponent condensation zinc chloride catalyst.

An efficient synthesis of a series of pyrazolopyridocoumarins I (R1 = Ph, 4-bromophenyl, 2,3-dimethoxyphenyl, etc.; R2 = Et, Me) is reported by condensation of 4-hydroxycoumarin, benzaldehydes R1CHO and 1-alkyl-5-amino-pyrazoles II in the presence of 10 mol% zinc chloride in ethanol under reflux conditions through one-pot reaction. The significant attraction of this protocol is being a simple procedure, mild reaction condition, and excellent yield. The mol. structure of the compound I (R1 = 2,3-dimethoxyphenyl; R2 = Et) is established by single crystal X-ray structure determination

Journal of Chemical Sciences (Berlin, Germany) 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

Karimi, Fatemeh published the artcileStudy on 3-(propylthio)propane-1-sulfonic acid immobilized on functionalized magnetic nanoparticles as an efficient catalyst for one-pot synthesis of dihydrotetrazolo[1,5-a]pyrimidine and tetrahydrotetrazolo[5,1-b]quinazolinone derivatives, Formula: C9H10O3, the main research area is propanesulfonic acid propylthio immobilized silica iron oxide preparation stability; tetrazole amino multicomponent heterocyclization aldehyde acetophenone dimedone acetoacetate; tetrazolopyrimidine dihydro preparation; tetrazoloquinazolinone tetrahydro preparation.

An efficient and reusable catalyst, 3-(propylthio)propane-1-sulfonic acid immobillized on functionalized magnetic nanoparticles [PTPSA@SiO2-Fe3O4], has been synthesized. This catalyst has been successfully used in multicomponent synthesis of dihydrotetrazolo[1,5-a]pyrimidines, dihydrotetrazolo[1,5-a]pyrimidine-6-carboxylates and tetrahydrotetrazolo[5,1-b]quinazolinones under solvent-free conditions. The structure of the catalyst was confirmed by characterization techniques, such as FT-IR, TGA, SEM-EDX, elemental mapping, TEM, VSM and elemental anal. Moreover, this unique catalyst was found to be effective in up to six cycles. Recyclability of the catalyst, excellent yields of the products, short reaction time and clean reaction profile are the advantages of the present protocol.

RSC Advances 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