Day: November 16, 2022

Shi, Hongwei published the artcileCatalyst- and additive-free sunlight-induced autoxidation of aldehydes to carboxylic acids, Name: 5-Methyl-2-phenylhex-2-enal, the main research area is carboxylic acid preparation green chem; aldehyde autoxidation sunlight.

A catalyst- and additive-free sunlight-induced strategy for autoxidation of a wide range of aldehydes RCHO (R = Bu, cyclohexyl, Ph, pyridin-3-yl, etc.) to carboxylic acids RC(O)OH is described for the first time. In this oxidation system, air serves as the source of oxygen and sunlight as the light source, and the system includes the advantages of green, highly atom-efficient, and low-cost synthesis. This method was easily applied even at gram scale. The reaction proceeds smoothly even at lower temperature and in natural light.

Green Chemistry published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 21834-92-4 belongs to class isoquinoline, name is 5-Methyl-2-phenylhex-2-enal, and the molecular formula is C13H16O, Name: 5-Methyl-2-phenylhex-2-enal.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Liang, Shengzong published the artcileSynthesis of Alkyl Halides from Aldehydes via Deformylative Halogenation, COA of Formula: C11H12O3, the main research area is alkyl halide synthesis aldehyde deformylative halogenation.

An unprecedented deformylative halogenation of aldehydes to alkyl halides is presented. Under oxidative conditions, 1,4-dihydropyridine (DHP), derived from an aldehyde, generated a C(sp3) radical that coupled with a halogen radical that was generated from inexpensive and atom-economical halogen sources (NaBr, NaI, or HCl), to yield an alkyl halide. Because of the mild conditions, a wide range of functional groups were tolerated, and excellent site selectivity was achieved.

Organic Letters published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, COA of Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Vandavasi, Jaya Kishore published the artcileA Nickel-Catalyzed Carbonyl-Heck Reaction, COA of Formula: C11H12O3, the main research area is Heck organotriflate aldehyde nickel catalyst triphos ligand amine base; Heck reactions; acylation; cross-coupling; ketones; nickel.

The use of transition-metal catalysis to enable the coupling of readily available organic mols. has greatly enhanced the ability of chemists to access complex chem. structures. In this work, an intermol. coupling reaction that unites organotriflates and aldehydes is presented. A unique catalyst system is identified to enable this reaction, featuring a Ni0 precatalyst, a tridentate Triphos ligand, and a bulky amine base. This transformation provides access to a variety of ketone-containing products without the selectivity- and reactivity-related challenges associated with more traditional Friedel-Crafts reactions. A Heck-type mechanism is postulated, wherein the π bond of the aldehyde takes the role of the olefin in the insertion/elimination steps.

Angewandte Chemie, International Edition published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, COA of Formula: C11H12O3.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Srimannarayana, Malempati published the artcileDeracemization and Transacetalization of Aldehydes with Enantiomers of Betti’s Base Derivatives, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, the main research area is deracemization transacetalization aldehyde enantiomer Betti base naphthoxazine; resolution aromatic aldehyde.

Improved procedure for the deracemization (resolution) of α-Me dihydrocinnamic aldehydes (2-methyl-3-phenylpropanals) of formula RCHMeCHO [R = Ph, 4-methoxyphenyl, 4-isopropylphenyl, 4-tert-butylphenyl, benzo[d][1,3]dioxol-5-yl] with L-(+)-tartaric acid salt of (S)-enantiomer of Betti’s base (I) to obtain naphthoxazines (II) and optically active dihydrocinnamic aldehydes (III) is presented. The method enabled the transacetalization of N,O-ketal (R)-enantiomer of Betti’s base (IV) with various aldehydes of formula R1-CHO [R1 = Ph, iso-Bu, 1-(4-isopropylphenyl)propan-2-yl, 2-(4-methoxyphenyl)ethyl, benzyl, 4-nitrophenyl, 1-[(benzo[d][1,3]dioxol-5-yl)methyl]propan-2-yl, 1-(4-tert-butylphenyl)propan-2-yl] to give N,O-ketals (V) and (VI) (R1 = same as above).

Synthetic Communications published new progress about Aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 1205-17-0 belongs to class isoquinoline, name is 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde, and the molecular formula is C11H12O3, Safety of 2-Methyl-3-(3,4-methylenedioxyphenyl)propionaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Prasad, Sure Siva published the artcileOne-Pot, Three-Component Approach to Diarylmethylphosphonates: A Direct Entry to Polycyclic Aromatic Systems, COA of Formula: C8H10O2, the main research area is aldehyde three component reaction electron rich heteroarene alkyl phosphite; polycyclic arylmethyl phosphonate preparation cyclization formylphenylboronate; phenanthrene preparation.

A new type of three-component reaction was developed consisting of aldehydes, electron-rich (hetero)arenes, and trialkyl phosphite, which provided facile access to a wide range of diarylmethylphosphonates under mild reaction conditions. Simple 1- or two-step synthetic manipulation of the resulting compounds enabled the authors to reach several polycyclic (hetero)aromatic systems efficiently.

Journal of Organic Chemistry published new progress about Aldehydes 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

Shabalala, Nhlanhla Gracious published the artcileCatalyst-free synthesis of novel isopropyl 2-amino-7,7-dimethyl-4-(aryl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate derivatives in aqueous ethanol under ultrasound irradiation, Safety of 2,3-Dimethoxybenzaldehyde, the main research area is isopropyl amino dimethyl aryl oxo tetrahydrochromene carboxylate green preparation; aldehyde isopropyl cyanoacetate dimedone three component ultrasound.

A series of 2-amino-7,7-dimethyl-4-(aryl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate derivatives I [R = n-Bu, 2-ClC6H4, 4-FC6H4, etc.] was reported via a simple, efficient and environmentally friendly protocol. This was achieved through a three-component reaction of chosen aliphatic and aromatic aldehydes with iso-Pr cyanoacetate and 5,5-dimethyl-1,3-cyclohexanedione in aqueous ethanol under ultrasound irradn with excellent yields (95-99%) for rapid reaction times (5-15 min) at room temperature This method avoided the use of a catalyst, volatile organic solvents and column chromatog. The present method gave a 95% atom economy and 100% of carbon efficiency.

Chemical Data Collections published new progress about 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, Safety of 2,3-Dimethoxybenzaldehyde.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Yoshii, Tomomi published the artcileN-Hydroxybenzimidazole as a structurally modifiable platform for N-oxyl radicals for direct C-H functionalization reactions, Recommanded Product: 1,3-Dimethoxybenzene, the main research area is hydroxy benzimidazole preparation DFT; benzyl amide preparation; aldehyde benzyl amine tandem functionalization hydroxy benzimidazole tetrafluoroborate catalyst; carbonyl compound preparation; phenyl propanal nucleophile functionalization hydroxy benzimidazole tetrafluoroborate catalyst.

Synthesis of N-oxyl radicals based on N-hydroxybenzimidazole were prepared and used as catalysts for direct C-H functionalization reaction of aldehydes with benzyl amine to afford N-benzyl-amides RC(O)NHBn [R = n-pentyl, Ph, (CH2)2Ph, etc.] in one-pot manner. Also, a series of carbonyl compounds R1C(O)R2 [R1 = (CH2)2Ph; R2 = OEt, OBn, pyrrolidin-1-yl etc.] was prepared via 1-hydroxy-3-methyl-2-phenyl-1H-benzo[d]imidazol-3-ium tetrafluoroborate catalyzed C-H functionalization reaction of 3-phenylpropanal with various nucleophiles. A class of unsym. ketones R3C(O)R4 [R3 = (CH2)2Ph; R4 = Ph, CH2CO2Me, 1,3-(OMe)2C6H3, etc.] was synthesized via reaction of phenylpropanoyl fluoride with various carbon nucleophiles. Moreover, with 1-hydroxy-3-methyl-2-phenyl-1H-benzo[d]imidazol-3-ium tetrafluoroborate as catalyst, a metal-free approach for the synthesis of acyl fluorides R5C(O)F [R5 = (CH2)2Ph, 4-MeC6H4, 4-MeOC6H4] via direct C-H fluorination of aldehydes using selectfluor as reagent under mild conditions was reported. N-hydroxybenzimidazole catalysts were carried out for d. functional theory calculations in order to estimate the bond dissociation energy values of the O-H bonds within the moiety.

Chemical Science published new progress about Aldehydes 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, Recommanded Product: 1,3-Dimethoxybenzene.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Koli, Papita published the artcileStructure-Activity Relationship of Indolylkojylmethane Based on Antiproliferative Activity against Breast Cancer, Category: isoquinoline, the main research area is alkyl kojylmethane aryl preparation human antitumor SAR docking.

A series of (alkyl/aryl)kojylmethane (IKM) derivatives I [R = 4-HOC6H4, 2-pyrrolyl, 3-indolyl, etc.; R1 = n-Bu, Ph, 2-naphthyl, etc.] was synthesized using a multicomponent one-pot reaction under solvent-free condition using a heterogeneous catalyst. The synthesized compounds were screened against breast cancer cell lines MDA-MB-231, MCF7, and T47D. The structure-activity relationship revealed that IKM synthesized from aliphatic aldehydes were active against all three cell lines and showed IC50 value of 0.15μM-3.93μM. IKM synthesized from aromatic aldehydes having electron-donating groups specifically inhibited the proliferation of the MDA-MB-231 cell line. The effect of various substituted indoles was also studied and observed that compound I [R = 5-CN-indol-3-yl, R1 = Ph] synthesized from 5-cyanoindole, specifically inhibited T47D cell line proliferation. Compound I [R = 3-indolyl, R1 = n-heptyl] synthesized from kojic acid, indole and octanal was found to be most potent with IC50 values of 0.21, 0.15, and 3.45μM against MDA-MB-231, MCF7, and T47D, resp.

ChemistrySelect published new progress about 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

He, Fengming published the artcileDesign, synthesis, and biological evaluation of (E)-N’-substituted-4-((4-pyridylpyrimidin-2-yl)amino)benzohydrazide derivatives as novel potential CDK9 inhibitors, Formula: C9H10O3, the main research area is pyridylpyrimidinyl benzohydrazide preparation antitumor HIV inhibitor mol docking.

In a continuing effort to develop new CDK9 inhibitors endowed with good anticancer activity, a series of new benzene carbohydrazide derivatives I (R = pyridin-2-yl, pyridin-3-yl, pyridin-4-yl; R 1 = n-Pr, 4-methylphenyl, thiophen-2-yl, etc.) bearing a (pyridyl pyrimidin-2-yl)amino moiety in position-4 of the Ph ring was designed and synthesized. This work reports the preparation of benzene carbohydrazide derivatives I, their inhibition effect on HIV-1 transcription, and the preliminary structure-activity relationships. Compound I (R = pyridin-2-yl, R 1 = 4-methoxyphenyl (II)) was found to be the most potent CDK9 inhibitor and exhibited excellent anti-proliferative activities against cancer cells (A375, A549, HepG2, and MCF-7) but was less toxic to normal cells (MCF-10A and HaCaT). Further bioassays indicated that compound II could induce the apoptosis of cancer cells, which contributes to its antitumor effects. Finally, the mol. docking studies are performed to predict the binding mode of 9h at the ATP binding site of CDK9 and identify the essential amino acids responsible for the interactions.

Arabian Journal of Chemistry published new progress about 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

Li, Baicun published the artcileDiscovery of a Nur77-mediated cytoplasmic vacuolation and paraptosis inducer (4-PQBH) for the treatment of hepatocellular carcinoma, HPLC of Formula: 86-51-1, the main research area is quinoline amino benzoylhydrazide preparation diastereoselective cytoplasmic vacuolation paraptosis docking; 4-(Quinoline-4-amino) Benzoylhydrazide; Cytoplasmic vacuolation; Hepatocellular Carcinoma; Nur77; Paraptosis.

A series of 4-(quinoline-4-amino) benzoylhydrazide derivatives I (R = Ph, 3-bromo-4-methoxyphenyl, 3-bromothiophene-2-yl, 2-chloropyridin-3-yl, etc.) was synthesized and evaluated for their anti-HCC activity and binding affinity to Nur77 in vitro. Compound I (R = pyridin-4-yl) emerged as the best Nur77 binder (KD = 1.17μM) and has potentially selective cytotoxicity to HCC cells. Mechanistically, I (R = pyridin-4-yl) extensively induced caspase-independent cytoplasmic vacuolization and paraptosis through Nur77-mediated ER stress and autophagy. Moreover, I (R = pyridin-4-yl) exhibited an effective xenograft tumor inhibition by modulating Nur77-dependent cytoplasmic vacuolation and paraptosis. This paper is the first to disclose that chemotherapeutic agents targeting Nur77-mediated cytoplasmic vacuolization and paraptosis may provide a promising strategy to combat HCC that frequently evade the apoptosis program.

Bioorganic Chemistry published new progress about 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, HPLC of Formula: 86-51-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem