40004-67-9

Upstream product

• 75-21-8 oxirane 
• 38869-47-5 4-(p-methoxyphenyl)piperazine dihydrochloride 
• 103-76-4 1-(2-hydroxyethyl)piperazine 
• 104-92-7 1-bromo-4-methoxy-benzene 

Downstream Products

• 141474-02-4 4-(4-Methoxyphenyl)-1-[2-(3,4,5-trimethoxyphenylcarbamoyloxy)ethyl]piperazine, hydrochloride 
• 90096-04-1 2-[4-(4-methoxyphenyl)-1-piperazinyl]ethyl methyl 2,6-dimethyl-4-(3-nitrophenyl)-1,4-dihydropyridine-3,5-dicarboxylate 
• 90096-05-2 2-[4-(4-methoxyphenyl)-1-piperazinyl]ethyl methyl 4-(3-chlorophenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate 

Relevant academic research and scientific papers

“On Water” promoted N-arylation reactions using Cu (0)/myo-inositol catalytic system

Myo-inositol is originally applied as a cardiovascular medicine in clinic, which can be multi-ton manufactured via extraction from the byproducts in agricultural product processing such as defatted rice bran and corn-soaking water. Herein, the application of myo-inositol (MI) as a novel versatile tridentate O-donor ligand has been first described for promoting Cu-catalyzed amination reaction in aqueous medium.

Methyl-α-d-glucopyranoside as Green Ligand for Selective Copper-Catalyzed N-Arylation

In the selective N-arylation of amines or azoles with aryl halidesa-, methyl-α-d-glucopyranoside (MG) was found to function as a green ligand of copper powder. In addition, nitrogen heterocyclic amine compounds can also undergo the N-arylation coupling with heterocyclic aryl chlorides. This process allows access to a variety of aromatic amines and aryl azoles under mild reaction conditions, has good tolerance, and proceeds in moderate to high yield.

Copper(ii)-catalyzed c-n coupling of aryl halides and n-nucleophiles promoted by quebrachitol or diethylene glycol

Herein, we report the natural ligand quebrachitol (QCT) as a promoter for a Cu(II) catalyst, which is highly effective for N-Arylation of various amines and related aryl halides. A series of diarylamine derivatives were obtained in high yields by using diethylene glycol (DEG) as both ligand and solvent. The C-N coupling reactions proceed under mild conditions and exhibit good functional group tolerance.

Discovery of N-(Naphthalen-1-yl)-N′-alkyl Oxalamide Ligands Enables Cu-Catalyzed Aryl Amination with High Turnovers

A class of N-(naphthalen-1-yl)-N′-alkyl oxalamides have been proven to be powerful ligands, making a coupling reaction of (hetero)aryl iodides with primary amines proceed at 50 °C with only 0.01 mol % of Cu2O and ligand as well as a coupling reaction of (hetero)aryl bromides with primary amines and ammonia at 80 °C with only 0.1 mol % of Cu2O and ligand. A wide range of coupling partners work well under these conditions, thereby providing an easy to operate method for preparing (hetero)aryl amines.

Substituted heterocyclylalkyl esters of 1,4-dihydropyridine-3,5-dicarboxylic acids

Dihydropyridine derivatives and acid addition salts thereof which are of use as prophylactic or/and therapeutic drugs for cardiovascular diseases, said dihydropyridine derivatives having the formula STR1 wherein R1, R2 and R3 are the same or different and each is alkyl, cycloalkyl, cycloalkylalkyl or alkoxyalkyl; R4 and R5 are the same or different and each is hydrogen, halogen, nitro, trifluoromethyl, alkyl, cycloalkyl, alkoxy, cyano, alkoxycarbonyl or alkylthio; R6 is hydrogen, alkyl, cycloalkyl, aralkyl, aryl or a pyridyl; X is oxygen, sulfur, vinylene, azomethine or a group of the formula STR2 A is alkylene; Ar is aryl or a pyridyl; m is an integer of 1 to 3; n is an integer of 0 to 2.

1-Heterocyclic alkyl-1,2,3,4-tetrahydroquinazolinones and analgesic intermediates thereof

1-Heterocyclic alkyl-1,2,3,4-tetrahydroquinazolinones, acid addition salts thereof, and intermediate compounds having analgesic properties. A representative quinazolinone compound is 1-[2-(1-phenyl-4-piperazinyl)-ethyl]-2-phenyl-1,2,3,4-tetrahydro-4-quinazolinone. A representative analgesic intermediate is 2-[2-(4-[1-phenyl]piperazinyl)ethylamino] bezamide.