Day: November 15, 2022

Luo, Nianhua published the artcileHighly pH-Dependent Chemoselective Transfer Hydrogenation of α,β-Unsaturated Aldehydes in Water, Recommanded Product: 5-Methyl-2-phenylhex-2-enal, the main research area is chemoselective pH dependent transfer hydrogenation unsaturated aldehyde preparation alc; cinnamyl alc benzenepropanol preparation chemoselective transfer hydrogenation cinnamaldehyde; iridium half sandwich imidazolylpyridine complex catalyst transfer hydrogenation cinnamaldehyde.

The pH-dependent selective Ir-catalyzed hydrogenation of α,β-unsaturated aldehydes was realized in water. Using HCOOH as the hydride donor at low pH, the unsaturated alc. products were obtained exclusively, while the saturated alc. products were formed preferentially by employing HCOONa as the hydride donor at high pH. A wide range of functional groups including electron-rich as well as electron-poor substituents on the aryl group of α,β-unsaturated aldehydes can be tolerated, affording the corresponding products in excellent yields with high TOF values. High selectivity and yields were also observed for α,β-unsaturated aldehydes with aliphatic substituents. Our mechanistic investigations indicate that the pH value is critical to the chemoselectivity.

Organometallics published new progress about Allylic alcohols Role: SPN (Synthetic Preparation), PREP (Preparation). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Recommanded Product: 5-Methyl-2-phenylhex-2-enal.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Li, Yuqiang published the artcileReaction scope and mechanistic insights of nickel-catalyzed migratory Suzuki-Miyaura cross-coupling, Related Products of isoquinoline, the main research area is diarylalkane allylbenzene derivative preparation nickel catalyst; alkyl electrophile aryl vinyl boronic acid Suzuki Miyaura coupling.

In this work, a Ni-catalyzed migratory Suzuki-Miyaura cross-coupling featuring high benzylic or allylic selectivity has been developed. With this method, unactivated alkyl electrophiles and aryl or vinyl boronic acids can be efficiently transferred to diarylalkane or allylbenzene derivatives under mild conditions. Importantly, unactivated alkyl chlorides can also be successfully used as the coupling partners. To demonstrate the applicability of this method, showcase that this strategy can serve as a platform for the synthesis of terminal, partially deuterium-labeled mols. from readily accessible starting materials. Exptl. studies suggest that migratory cross-coupling products are generated from Ni(0/II) catalytic cycle. Theor. calculations indicate that the chain-walking occurs at a neutral nickel complex rather than a cationic one. In addition, the original-site cross-coupling products can be obtained by alternating the ligand, wherein the formation of the products has been rationalized by a radical chain process.

Nature Communications published new progress about Alkanes Role: SPN (Synthetic Preparation), PREP (Preparation) (diaryl). 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

Li, Yuqiang published the artcileReaction scope and mechanistic insights of nickel-catalyzed migratory Suzuki-Miyaura cross-coupling, HPLC of Formula: 104-01-8, the main research area is diarylalkane allylbenzene derivative preparation nickel catalyst; alkyl electrophile aryl vinyl boronic acid Suzuki Miyaura coupling.

In this work, a Ni-catalyzed migratory Suzuki-Miyaura cross-coupling featuring high benzylic or allylic selectivity has been developed. With this method, unactivated alkyl electrophiles and aryl or vinyl boronic acids can be efficiently transferred to diarylalkane or allylbenzene derivatives under mild conditions. Importantly, unactivated alkyl chlorides can also be successfully used as the coupling partners. To demonstrate the applicability of this method, showcase that this strategy can serve as a platform for the synthesis of terminal, partially deuterium-labeled mols. from readily accessible starting materials. Exptl. studies suggest that migratory cross-coupling products are generated from Ni(0/II) catalytic cycle. Theor. calculations indicate that the chain-walking occurs at a neutral nickel complex rather than a cationic one. In addition, the original-site cross-coupling products can be obtained by alternating the ligand, wherein the formation of the products has been rationalized by a radical chain process.

Nature Communications published new progress about Alkanes Role: SPN (Synthetic Preparation), PREP (Preparation) (diaryl). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, HPLC of Formula: 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Luo, Shu-Zheng published the artcileSynthesis of Bulky 1,1-Diarylalkanes by Copper-Catalyzed 1,2-Alkylarylation of Styrenes with α-Carbonyl Alkyl Bromides and Arenes involving C-H Functionalization, Formula: C8H10O2, the main research area is diarylalkane preparation copper catalyst; styrene carbonyl alkylbromide arene alkylarylation.

A copper and silver-promoted intermol. 1,2-alkylarylation of styrenes with α-carbonyl alkyl bromides and arenes for producing highly bulky 1,1-diarylalkane derivatives I (Ar = 2,4-diOMeC6H3, 4-Me-2,6-diOMeC6H2, 2,4,6-triOMeC6H2, etc; R1 = 4-MeC6H4, 4-OEtC6H4, 4-tBuC6H4, etc; R2 = R3 = Me, F, c-Bu, etc; R4 = OMe, OEt, C6H5.) has been developed. In this transformations, two new C-C bonds were formed in a single reaction step through C-Br bond cleavage and C(sp2)-H functionalization. This protocol tolerates a variety of α-carbonyl alkyl bromides, including primary, secondary and tertiary α-bromoalkyl ketone esters.

Advanced Synthesis & Catalysis published new progress about Alkanes Role: SPN (Synthetic Preparation), PREP (Preparation) (diaryl). 151-10-0 belongs to class isoquinoline, name is 1,3-Dimethoxybenzene, and the molecular formula is C8H10O2, Formula: C8H10O2.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Shao, Wen published the artcileNi-Catalyzed Regiodivergent and Stereoselective Hydroalkylation of Acyclic Branched Dienes with Unstabilized C(sp3) Nucleophiles, HPLC of Formula: 104-01-8, the main research area is nickel catalyzed regiodivergent stereoselective hydroalkylation branched diene unstabilized nucleophile.

Two complementary regiodivergent [(P,N)Ni]-catalyzed hydroalkylations of branched dienes are reported. When amides are employed as unstabilized C(sp3) nucleophiles, a highly regioselective 1,4-addition process is favored. The addition products are obtained in high yield and with excellent stereocontrol of the internal olefin. With use of a chiral ligand and imides as carbon nucleophiles, a 3,4-addition protocol was developed, enabling construction of two contiguous tertiary stereocenters in a single step with moderate to high levels of diastereocontrol and excellent enantiocontrol. Both methods operate under mild reaction conditions, display a broad scope, and show excellent functional group tolerance. The synthetic potential of the 3,4-hydroalkylation reaction was established via a series of postcatalytic modifications.

Journal of the American Chemical Society published new progress about Alkadienes Role: RCT (Reactant), RACT (Reactant or Reagent) (branched). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, HPLC of Formula: 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Rosien, Michael published the artcileTitanium-Catalyzed Hydroaminoalkylation of Ethylene, Application of 4-Methoxy-N-methylaniline, the main research area is amine preparation; secondary amine ethylene hydroaminoalkylation titanium catalyst; amination; amines; ethylene; hydroaminoalkylation; titanium.

The first examples of titanium-catalyzed hydroaminoalkylation reactions of ethylene with secondary amines such as N-ethylaniline, N-methylcyclohexanamine, pyrrolidine, etc. are presented. The reactions can be achieved with various titanium catalysts and they do not require the use of high pressure equipment. In addition, the first solid-state structure of titanapyrrolidine I (R = H, Cl, Me; n = 2) that is formed by insertion of alkene into the Ti-C bond of titanaaziridine I (n = 1) is reported.

Chemistry – A European Journal published new progress about Aliphatic amines Role: SPN (Synthetic Preparation), PREP (Preparation). 5961-59-1 belongs to class isoquinoline, name is 4-Methoxy-N-methylaniline, and the molecular formula is C8H11NO, Application of 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yu, Lu published the artcileRegio- and Enantioselective Formal Hydroamination of Enamines for the Synthesis of 1,2-Diamines, Product Details of C9H10O3, the main research area is regioselective enantioselective hydroamination enamine diamine synthesis; amines; copper; enamines; enantioselectivity; hydroamination.

The asym. formal hydroamination of enamines using a CuH catalyst is reported [e.g., enamine I + O-acylhydroxylamine II → diamine III (69%, 97:3 e.r.) in presence of (MeO)2MeSiH as hydride source, Cu(OAc)2 and (R)-DTBM-SEGPHOS]. The method provides a straightforward and efficient approach to the synthesis of chiral 1,2-dialkyl amines in good yields with high levels of enantioselectivities for a broad range of substrates, and should have significant value for the preparation of mols. bearing a 1,2-diamine motif.

Angewandte Chemie, International Edition published new progress about Diamines Role: SPN (Synthetic Preparation), PREP (Preparation) (chiral). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Product Details of C9H10O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Chang, Meng-Yang published the artcileSynthesis of 1-Aryl Isoquinolinones or o-Diaryl Pyrimidines via Bismuth Triflate-Mediated Intermolecular Annulation of Arylacetic Acids with Nitroarylaldehydes or Trimethoxybenzene in the Presence of Acetonitrile, Synthetic Route of 104-01-8, the main research area is aryl isoquinolinone diaryl pyrimidine preparation; nitroarylaldehyde arylacetic acid trimethoxybenzene intermol multicomponent condensation bismuth triflate.

In this article, bismuth triflate (Bi(OTf)3)-controlled intermol. multi-component condensation of oxygenated arylacetic acids with electron-withdrawing nitroarylaldehydes or electron-donating trimethoxybenzene provide 1-aryl isoquinolinones or o-diaryl pyrimidines in acetonitrile at 60°C. The uses of various metal triflates and reaction conditions are investigated in the one-pot reaction. Only water is generated as the byproduct via (4C+1C+1N) and (2C+1N1C+1N1C) annulation routes. Plausible mechanisms have been proposed.

Advanced Synthesis & Catalysis published new progress about Aryl aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent) (nitro). 104-01-8 belongs to class isoquinoline, name is 4-Methoxyphenylacetic acid, and the molecular formula is C9H10O3, Synthetic Route of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Xing, Ai-Ping published the artcileCuO-catalyzed conversion of arylacetic acids into aromatic nitriles with K4Fe(CN)6 as the nitrogen source, Application of 4-Methoxyphenylacetic acid, the main research area is aromatic nitrile preparation; arylacetic acid cyanation copper catalyst.

CuO was demonstrated to be effective as the catalyst for the conversion of arylacetic acids to aromatic nitriles ArCN [Ar = Ph, 2-MeC6H4, 1-naphthyl, etc.] with non-toxic and inexpensive K4Fe(CN)6 as the nitrogen source via the complete cleavage of the C≡N triple bond. The present method allowed a series of arylacetic acids including phenylacetic acids, naphthaleneacetic acids, 2-thiopheneacetic acid and 2-furanacetic acid to be converted into the targeted products in low to high yields.

Catalysis Communications published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Tvspv, Satya Guru published the artcileExcellent catalytic activity of ethylenediamine stabilised oxalate ligated aluminium coordination complex for synthesis of novel benzoquinolines, Quality Control of 86-51-1, the main research area is aluminum oxalate oxo complex preparation crystal structure heterocyclization catalyst.

Two-dimensional supramol. structure of oxalate ligated Al(III) coordination complex, (C2H10N2)2.[Al2(μ-O2)(oxalate)4]•2H2O (Al-Ox) was synthesized hydrothermally and determined the structural features with single-crystal x-ray diffraction studies. Unique oxo bridged dinuclear Al(III) clusters were established and each Al(III) atom bonded with two units of oxalate ligand. In the dinuclear Al(III) structure, two Al(III) atoms were separated with a bond distance of 2.8702 Å. Unsaturated metal centers creation upon activation acts as Lewis acid sites and ethylenediamine with a strong basic character in the structure remarkably facilitate an efficient and economic strategy for better organic transformations. The Lewis acid-base character catalytic efficacy of the complex is explored in the tandem multi-component synthesis of benzoquinoline-2-carbonitrile moieties. The synergy between the exceptional Lewis acidic and basic properties of Al-Ox contributed to its excellent catalytic activity in the generation of five new benzoquinoline-2-carbonitriles in impressive yields (92-96%) in short reaction time (∼15 min) in a simple one-pot protocol, in ethanol. Recyclability with consistent activity (>5 times) is the added advantage.

Polyhedron published new progress about Aromatic nitriles Role: SPN (Synthetic Preparation), PREP (Preparation). 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