Tag: M.W=150-200

Vilches-Herrera, Marcelo published the artcileInfluence of the bite natural angle of bidentate diphosphine ligands in the syngas-free branched hydroformylation of β-functionalized olefins, Application In Synthesis of 1205-17-0, the main research area is bidentate diphosphine ligand branched hydroformylation beta olefin.

The correlation between the activity, regio- and chemoselectivity of Rh-diphosphine catalyst and the ligand bite natural angle (βn) in the syngas-free hydroformylation of allyl cyanide was studied. A screening of Xantphos type and diphosphine alkyl ligands with different bite natural angles was studied. Interesting, a switch in the linear to the branch regioselectivity was found. Wide βn favor a linear regioselectivity whereas smaller βn gave the branched aldehyde as the major product. Modification of the substituents at the phosphorus atoms of the diphosphine ligands produced a dramatic change in the hydroformylation. Others β-functionalized olefins were also branched hydroformylated.

Catalysis Communications published new progress about Aldehydes Role: SPN (Synthetic Preparation), PREP (Preparation). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Application In Synthesis of 1205-17-0.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Baricelli, Pablo J. published the artcileHydroformylation of natural olefins with the [Rh(COD)(μ-OMe)]2/TPPTS complex in BMI-BF4/toluene biphasic medium: observations on the interfacial role of CTAB in reactive systems, Application of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is aldehyde preparation hydroformylation natural olefin rhodium catalyst ionic liquid.

The complex [Rh(COD)(μ-OMe)]2 in presence of TPPTS (TPPTS = triphenylphosphinetrisulfonate) was evaluated as catalyst precursor for the in situ hydroformylation of natural olefins (eugenol, estragole and safrole) in biphasic media BMIm-BF4/toluene. Under moderate reaction conditions, the substrates showed the following reactivity order: eugenol > estragole > safrole. The rhodium system showed a high activity and selectivity towards the desired aldehydes. It was found that the use of cetyltrimethylammoniun bromide (CTAB) as phase transfer agent inhibits the hydroformylation reaction. The catalytic phase can be recycled up to four times without evident loss of activity or selectivity. In this work we report the use of an ionic liquid with hydrophilic character, without using water in the reaction medium.

Molecular Catalysis published new progress about Aldehydes Role: SPN (Synthetic Preparation), PREP (Preparation). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Application of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liu, Shanshan published the artcileDinuclear Zinc-AzePhenol Catalyzed Asymmetric Aza-Henry Reaction of N-Boc Imines and Nitroalkanes under Ambient Conditions, HPLC of Formula: 86-51-1, the main research area is asym aza Henry reaction Boc imine nitroalkane; dinuclear zinc AzePhenol catalyst asym aza Henry reaction.

The asym. aza-Henry reaction of N-Boc imines and nitroalkanes was realized in the presence of 10 mol% dinuclear zinc-AzePhenol catalysts under ambient conditions. A variety of nitroamines were obtained in good yields (up to 97%) with excellent enantioselectivities (up to 99% ee) and high diastereoselectivity (up to 14:1 dr). Our protocol combined the operational simplicity and mild reaction conditions, thus making the process amenable for tech. applications.

Journal of Organic Chemistry published new progress about Alkanes, nitro 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, HPLC of Formula: 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Campano, Teresa E. published the artcileEnantioselective Addition of Alkynyl Ketones to Nitroolefins Assisted by Bronsted Base/H-Bonding Catalysis, Application of 4-Methoxyphenylacetic acid, the main research area is nitro alkynone preparation diastereoselective enantioselective; alkynyl ketone nitroolefin conjugate addition bifunctional bronsted base catalyst; Brønsted bases; Michael reaction; alkynyl ketones; asymmetric catalysis; organocatalysis.

Various sets of enolizable alkynyl ketones (including Me ynones with α-aryl, α-alkenyl and α-alkoxy groups) were able to react smoothly with nitroolefins with the assistance of bifunctional Bronsted base/H-bond catalysts to provide nitro alkynones with two consecutive tertiary stereocenters I [R1 = Ph, 4-MeC6H4, 4-ClC6H4, etc.; R2 = n-Pr, Ph, 2-furyl, etc.; R3 = MeC=CH2, HC=CHPh, Ph, OBn, etc.] in a highly diastereo- and enantioselective fashion. Further transformation of the obtained adducts into optically active acyclic and polycyclic mols., including some with intricate carbon skeletons, was also demonstrated.

Chemistry – A European Journal published new progress about Alkenes, nitro 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, Application of 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Smith, Jennifer published the artcileChiral cyclometalated iridium complexes for asymmetric reduction reactions, Application of 2,3-Dimethoxybenzaldehyde, the main research area is iridium reduction transfer hydrogenation cyclometalation iridacycle reductive amination catalyst; ketone pyridinium ion arylamine benzylamine; piperidine secondary amine asym preparation mol structure.

A series of chiral cyclometalated iridium complexes have been synthesized by cyclometalating chiral 2-aryl-oxazoline and imidazoline ligands with [Cp*IrCl2]2. These iridacycles were studied for asym. transfer hydrogenation reactions with formic acid as the hydrogen source and were found to display various activities and enantioselectivities, with the most effective ones affording up to 63% ee in the asym. reductive amination of ketones and 77% ee in the reduction of pyridinium ions.

Organic & Biomolecular Chemistry published new progress about Aralkyl amines 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 of 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Dyachenko, Natalia V. published the artcileSynthesis of fused heterocyclic systems via the Mallory photoreaction of arylthienylethenes, SDS of cas: 86-51-1, the main research area is arylthienylethene diastereoselective preparation Mallory photoreaction UV visible spectra; naphthothiophene preparation crystal structure UV visible fluorescence spectra.

Photochem. oxidative cyclization of 2- and 3-thienylstilbenes (heterostilbenes) containing mono-, di- and trimethoxy groups in the benzene ring or heterocyclic fragment resulted in the formation of isomeric thieno-annelated polycyclic aromatic compounds demonstrating optical properties that differ from those of initial stilbene derivatives The structures of cyclic products were evaluated via 1H and 13C-NMR, HRMS, elemental anal. and X-ray crystallog. The research was aimed to study the effect of substituents in stilbene derivatives of thiophene as well as the position of the styryl fragment in the thiophene nucleus on the occurrence of photocyclization reactions.

Photochemical & Photobiological Sciences 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, SDS of cas: 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kasar, Sandeep B. published the artcileUltrasonically Assisted Efficient and Green Protocol for the Synthesis of 4H-isoxazol-5-ones using Itaconic Acid as a Homogeneous and Reusable Organocatalyst, Formula: C9H10O3, the main research area is arylaldehyde hydroxylamine hydrochloride ethylacetoacetate itaconic acid three component cyclocondensation; arylidene methylisoxazolone preparation green chem ultrasonication.

Itaconic acid was used as a green catalyst for the synthesis of 4H-isoxazol-5-ones derivatives under conventional as well as ultrasound irradiation technique. Ultrasound irradiation condition required less time for the completion of the reaction and also the yields were better. Ambient reaction conditions were used to carry out transformation for multicomponent reaction. Metal-free, mineral acid-free synthesis were key features of the present protocol.

Current Organocatalysis 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, Formula: C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Chang, Meng-Yang published the artcileTrifluoroacetic Anhydride Mediated One-Pot Synthesis of 1-Aryl Isochroman-3-ones via the Carboxy-Pictet-Spengler Reaction, Quality Control of 104-01-8, the main research area is arylacetic acid arylaldehyde ketone trifluoroacetic anhydride Pictet Spengler annulation; aryl isochromanone green one pot preparation.

In this paper, a novel and open-vessel route for the facile-operational synthesis of 1-aryl isochroman-3-ones is described via (CF3CO)2O (trifluoroacetic anhydride, TFAA)-mediated intermol. (4 + 2) annulation of oxygenated arylacetic acids with arylaldehydes or ketones under mild reaction conditions. A plausible mechanism is proposed and discussed herein. Various reaction conditions are investigated for efficient transformation under an environmentally friendly one-pot carboxy-Pictet-Spengler reaction.

Journal of Organic Chemistry published new progress about Aryl aldehydes 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, Quality Control of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Batalin, Sergey D. published the artcileSubstituted 2-(ortho-hydroxyaryl)cyclopenta[b]pyridines: Synthesis and Fluorescent Properties under Neutral, Acidic Medium and Solid State, Product Details of C9H10O3, the main research area is ortho hydroxyaryl cyclopentapyridine preparation fluorescent property; cyclopentanone aromatic aldehyde ketone pseudo five component.

New derivatives of substituted 2-(ortho-hydroxyaryl)cyclopenta[b]pyridines were synthesized by pseudo-five component reaction of cyclopentanone, two mols. of aromatic aldehyde, Krohnke salt of ortho-hydroxy substituted aromatic ketone and ammonium acetate. On the basis of the counter four-component synthesis, the path of this transformation has been established. The fluorescent properties of the obtained structures are considered in chloroform under neutral, acidic conditions (TFA added) and in the solid state.

ChemistrySelect 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, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Sadeh, Fatemeh Noori published the artcileThree-component coupling approach for the synthesis of 4H-pyrans and pyran-annulated heterocyclic scaffolds utilizing Ag/TiO2 nano-thin films as robust recoverable catalyst, Category: isoquinoline, the main research area is silver titanium oxide nano thin film catalyst preparation Knoevenagel; chromenecarbonitrile green preparation; dimedone aryl aldehyde malononitrile Knoevenagel cyclocondensation silver titanium catalyst; hydroxycoumarin aryl aldehyde malononitrile Knoevenagel cyclocondensation silver titanium catalyst; resorcinol aryl aldehyde malononitrile Knoevenagel cyclocondensation silver titanium catalyst; pyranopyrimidine green preparation; barbituric acid aldehyde malononitrile Knoevenagel cyclocondensation silver titanium catalyst.

As a segment of ongoing surveys and with the aim of expansion of environmentally benign processes, a series of biol. varied substituted 2-amino-3-cyano-4H-pyrans and pyran-annulated scaffolds I [R = Ph, 4-MeC6H4, 2,3-(MeO)2C6H3, etc.], II [R = Ph, 2-FC6H4, 2,4-Cl2C6H3, etc.], III [R = Ph, 4-MeC6H4, 2-thienyl, etc.] and IV [R = Ph, 4-FC6H4, 4-BrC6H4, etc., R1 = H, Me] have been synthesized by tandem Knoevenagel cyclocondensation of aldehydes, malononitrile, and C-H-activated acidic compounds in aqueous ethanol in the presence of Ag/TiO2 nano-thin films as an eco-friendly, recyclable, and robust catalyst at 60°C. The salient features of this protocol are mild reaction conditions, producing target compounds in high yields, short reaction times, high atom economy, eco-friendly catalyst, easy isolation of products, and no column chromatog. separation Also, it was observed that the catalyst is highly stable during the reaction and is reused several times without any observable loss in catalytic performance.

Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal 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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem