Day: November 17, 2022

Mamidala, Ramesh published the artcilePalladacycle-Phosphine Catalyzed Methylation of Amines and Ketones Using Methanol, Product Details of C8H11NO, the main research area is amine ketone methylation palladacycle phosphine catalyst methanol.

Methylation of amines and ketones with palladacycle precatalyst was performed using methanol as an environmentally benign reagent. Various ketones and amines undergo methylation reaction to yield monomethylated amines or ketones in moderate to good isolated yields. Moreover, this protocol was tested for the chemoselective methylation of 4-aminobenzenesulfonamide. The scope of the reaction was further extended to the deuteromethylation of ketones.

Journal of Organic Chemistry published new progress about Amines 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, Product Details of C8H11NO.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Li, Yong published the artcileMicrowave-assisted efficient and facile synthesis of tetramic acid derivatives via a one-pot post-Ugi cascade reaction, Recommanded Product: 4-Methoxyphenylacetic acid, the main research area is tetramic acid derivative preparation microwave irradiation; ethyl glyoxylate amine acid isonitrile tandem Ugi Dieckmann cyclization; Dieckmann cyclization; Ugi reaction; multicomponent reactions; nitrogen heterocycles; one-pot reaction.

A facile microwave-assisted method for the synthesis of tetramic acid derivatives I (R1 = Ph, Bn, 4-MeOC6H4, etc.; R2 = 3-F, 4-NO2, 3,4-(OMe)2, etc.; R3 = Ph, Bn, c-hexyl, 2,6-(Me)2C6H3) has been developed through an Ugi/Dieckmann cyclization strategy with DBU. This two-step one-pot procedure afforded the targeted tetramic acid analogs in good yields. With com. available Ugi starting materials, microwave irradiation, a simple operation, excellent yields, and a broad scope, this reaction has the potential to produce a large number of tetramic acid analogs, which cannot be easily accessed by the classic synthetic methods.

Beilstein Journal of Organic Chemistry published new progress about Amines 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, Recommanded Product: 4-Methoxyphenylacetic acid.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Emayavaramban, Balakumar published the artcileCobalt-Catalyzed Reductive Alkylation of Amines with Carboxylic Acids, Computed Properties of 104-01-8, the main research area is cobalt catalyst reductive alkylation amine carboxylate; alkylation; amines; carboxylic acids; cobalt; reduction.

Direct reductive alkylation of amines with carboxylic acid was carried out by using an inexpensive, air-stable cobalt/triphos catalytic system with mol. hydrogen as the reductant. This efficient synthetic method proceeds through reduction and condensation, followed by reduction of the in situ-generated imine into the amine in a green catalytic process.

ChemSusChem published new progress about Amines 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, Computed Properties of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Takaishi, Kazuto published the artcileUnexpected Macrocyclic Multinuclear Zinc and Nickel Complexes that Function as Multitasking Catalysts for CO2 Fixations, Safety of 4-Methoxy-N-methylaniline, the main research area is epoxide carbon dioxide fixation binaphthyl bipyridyl zinc nickel catalyst; cyclic carbonate preparation; amine hydrosilane zinc nickel catalyst formylation methylation chemoselective DFT; tertiary amine preparation; N-functionalization; carbon dioxide fixation; cyclic carbonates; multinuclear complexes; self-assembly.

Unique self-assembled macrocyclic multinuclear ZnII and NiII complexes with binaphthyl-bipyridyl ligands (L) were synthesized. X-ray anal. revealed that these complexes consisted of an outer ring (Zn3L3 or Ni3L3) and an inner core (Zn2 or Ni). In the ZnII complex, the inner Zn2 part rotated rapidly inside the outer ring in solution on an NMR timescale. These complexes exhibited dual catalytic activities for CO2 fixations: synthesis of cyclic carbonates from epoxides and CO2 and temperature-switched N-formylation/N-methylation of amines with CO2 and hydrosilane.

Angewandte Chemie, International Edition published new progress about Amines 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, Safety of 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Onida, Killian published the artcileDirect Synthesis of Carbamoyl Fluorides by CO2 Deoxyfluorination, Synthetic Route of 5961-59-1, the main research area is carbamoyl fluoride synthesis carbon dioxide deoxyfluorination amine DAST; amines; carbamoyl fluorides; carbon dioxide; deoxyfluorination; fluorine.

Herein, a new concept for the direct synthesis of carbamoyl fluoride derivatives is disclosed. The developed method makes use of CO2 as an inexpensive and abundant C1 source; a variety of amines were successfully converted in the presence of a deoxyfluorinating reagent. The corresponding products were often obtained in excellent yields under mild reaction conditions (1 atm and room temperature). The reaction was easily scaled up, demonstrating the efficiency of the developed process.

Angewandte Chemie, International Edition published new progress about Amines 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, Synthetic Route of 5961-59-1.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Kalita, Tapasi published the artcileEthyl 2-Cyano-2-(2-Nitrophenylsulfonyloximino)Acetate (ortho-NosylOXY) Mediated One-Pot Racemization Free Synthesis of Ureas, Carbamates, and Thiocarbamates via Curtius Rearrangement, Synthetic Route of 104-01-8, the main research area is urea preparation; carbamate preparation; thiocarbamate preparation; carboxylic acid ethyl cyano nitrophenylsulfonyloximino acetate Curtius rearrangement.

A detailed NMR-based mechanism study is incorporated here. Direct conversion of to ureas RNHC(O)NHR1 (R = Ph, 4-methylphenyl, 4-methoxybenzyl, (tert-butoxycarbonylamino)(phenyl)methyl, etc.; R1 = 4-chlorophenyl, tert-Bu, methoxycarbonylmethyl, etc.), carbamates RNHC(O)OR1 (R = 4-methoxyphenyl, 4-bromophenyl; R1 = 4-nitrobenzyl, 4-methoxybenzyl), and thiocarbamate RNHC(O)SR1 (R = Ph, undecan-1-yl, 2-methoxyphenyl; R1 = 4-chlorobenzyl) in a single pot via Curtius rearrangement is accomplished. One recently established coupling reagent, ethyl-2-cyano-2-(2-nitrophenylsulfonyloximino)acetate (ortho-NosylOXY), is successfully used for the racemization free synthesis of ureas, di-peptidyl ureas, and carbamates with moderate to good yield (82-69%). This single-pot hassle-free procedure works with a diverse range of N-protecting groups Fmoc, Boc, and Cbz. Various amines R1NH2, including aromatic, Me esters of amino acids, tert-butylamine, benzyl alcs. (such as 4-nitrobenzyl alc., 4-methoxybenzyl alc.), and (4-chlorophenyl)-methanethiol, are used as nucleophiles. Racemization suppression, easy removal of byproducts, and less waste generation make this methodol. useful.

Asian Journal of Organic Chemistry published new progress about Amines 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, Synthetic Route of 104-01-8.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Lenci, Elena published the artcileA Glucose-Derived α-Hydroxy Aldehyde for the Petasis Reaction: Facile Access to Polyfunctional δ-Amino Acids, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is glucose hydroxy aldehyde preparation multicomponent Petasis borono Mannich; polyfunctional amino acid preparation multicomponent Petasis borono Mannich.

The multicomponent Petasis borono-Mannich reaction proceeds via an imine with the boronic acid acting as the nucleophile for the preparation of amines and their derivatives, including amino acids. In view of the expansion of the poorly-exploited carbohydrate chem. using this reaction, a new α-hydroxy aldehyde moiety from the terminal diol of D-glucose diacetonide was synthesized and applied to this multicomponent reaction, demonstrating the scope of this method and the applicability to the convenient preparation of a protected polyfunctional δ-amino acid in only three synthetic steps from the Petasis reaction intermediate.

European Journal of Organic Chemistry published new progress about Amines 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, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Tang, Feiying published the artcileBiomass-derived N-doped porous carbon: an efficient metal-free catalyst for methylation of amines with CO2, SDS of cas: 5961-59-1, the main research area is biomass derived nitrogen doped carbon catalytic methylation amine.

Developing green, efficient, and low-cost catalysts for methylation of N-H by using CO2 as the C1 resource is highly desired yet remains a significant challenge. Herein, N-doped porous carbons (NPCs) were designed, synthesized, and are an excellent metal-free catalyst for CO2-participated methylation conversion. NPCs were prepared via the pyrolysis of a mixture of tannic acid and urea. Both theor. calculation and the N species especially pyridinic N and pyrrolic N within NPCs can work as Lewis basic sites for attacking CO2 to weaken the C=O bonds and lower the mol. conversion barrier, facilitating the subsequent methylation of N-H to produce, for example, N,N-dimethylaniline. Besides, the unique porous structure can enrich CO2 and accelerate mass transfer, synergistically promoting the conversion of CO2. The optimized NPC(1/5) catalyst, integrating the porous structure and strong Lewis basicity, exhibits excellent catalytic activity for CO2-based methylation reaction under mild conditions (1 bar CO2, 75°). The work, for the 1st time, demonstrates the feasibility of using NPCs to catalyze the methylation of amino compounds to produce N,N-dimethylamine by exploiting CO2 as the C1 resource.

Green Chemistry published new progress about Amines 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

Yu, Haitao published the artcileDihydrolevoglucosenone as a bio-based catalytic solvent for efficient reductive-transformation of CO2 with amines into formamides and benzothiazoles, Category: isoquinoline, the main research area is formamide benzothiazole preparation; carbon dioxide amine reductive transformation dihydrolevoglucosenone bio catalytic solvent.

Transformation of CO2 as the C1 resource to produce value-added chems. is of great importance to decrease CO2 emission. In this context, development of green catalytic systems, especially those derived from renewable resources, is highly attractive to make the processes of converting CO2 more sustainable, which has gained significant interest. In this work, cellulose-derived dihydrolevoglucosenone (DLGO, Cyrene) was employed as a renewable catalytic solvent to convert CO2. DLGO was highly efficient for reductive conversion of CO2 with amines using PhSiH3 as the reductant, and various corresponding formamides could be selectively synthesized. Reaction kinetics anal. suggested that DLGO-based catalytic system possessed a higher reaction rate constant and lower apparent activation energy than both GVL and CH3CN-based catalytic systems. Furthermore, systematic studies revealed that DLGO with high polarity had strong ability to activate the N-H bond in amines and the Si-H bond in PhSiH3 by the solvent effect (i.e., solvation and polarization), thereby making the catalytic system be highly efficient. This developed biomass-based catalytic system could be expanded to synthesize benzothiazoles from the reductive conversion of CO2 with aminothiophenols using PhSiH3 as the reductant. Notably, the DLGO-based system combined CO2 transformation and biomass utilization, affording it possessing more values of practical applications.

Chemical Engineering Journal (Amsterdam, Netherlands) published new progress about Amines 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, Category: isoquinoline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem

Chen, Xiu-Ping published the artcileStudy on the mild, rapid and selective difluorocarbene-mediated triclassification of iododifluoroacetophenone with secondary amines and tree model for product classification, Recommanded Product: 4-Methoxy-N-methylaniline, the main research area is difluoromethyl benzoimidazole preparation; indole difluoromethyl preparation; formamide aryl preparation; benzothiazole difluoromethyl thio preparation; benzooxazole difluoromethyl thio preparation; aryl difluoromethoxy preparation.

In this work, a room temperature difluorocarbene-mediated triclassification reaction of iododifluoroacetophenone and secondary amines with mild condition, short reaction time (only 10 min) and high selectivity had been studied, which produced one of the following three substances: N-CF2H derivatives I [R1 = H, SCF2H, 2-pyridyl, (3,4-dichlorophenyl)methyl; R2 = H, CN, C(O)Me, (2-chloropyrimidin-4-yl); R3 = H, 5-Br, 6-NO2, 5,6-di-Me, 6-Me-5-NO2; X = C, N; Y = C, N] (up to 87% yield), formamides ArNR4C(O)H [Ar = Ph, 4-MeOC6H4, 1-naphthyl; R4 = Me, Et] (82-89% yield) or the recycled starting secondary amines. This phenomenon was related to the structural stability of the corresponding products. If unstable, it would be hydrolyzed to formamides first, and then further hydrolyzed to starting amines. Based on the geometric structure of the raw materials, the corresponding prediction tree model was established, which provided guidance for the further application of difluoromethylation of Vemurafenib and AZD9291. In addition, this method was successfully applied to the S- and O-difluoromethylations to obtain the corresponding sulfur derivatives II [Z = S, O; R5 = 5-Cl, 6-Br, 4-Me, etc.] and O-CF2H derivatives ArO-CF2H [Ar = 3,4-di-MeOC6H3 1-naphthyl, 4-PhC6H4, etc.] with satisfactory yields.

Tetrahedron published new progress about Amines 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, Recommanded Product: 4-Methoxy-N-methylaniline.

Referemce:
Isoquinoline – Wikipedia,
Isoquinoline | C9H7N – PubChem