119-25-5

Upstream product

• 96-96-8 4-methoxy-2-nitroaniline 

Downstream Products

• 119750-09-3 chloro-(4-methoxy-2-nitro-phenylhydrazono)-acetic acid ethyl ester 
• 69111-92-8 2-(4-methoxy-2-nitrophenyl)acetaldehyde 
• 85355-35-7 Acetic acid 1-chloro-2-(4-methoxy-2-nitro-phenyl)-ethyl ester 
• 6178-48-9 6-Carboxy-2,3,4,4'-tetramethoxy-2'-nitro-biphenyl 
• 6528-34-3 C₁₈H₁₈N₄O₆ 
• 1619995-07-1 12-[5-(4-methoxy-2-nitrophenyl)furan-2-yl]-9,9-dimethyl-7,8,9,10-tetrahydrobenzo[a]acridin-11(12H)-one 
• 1619995-18-4 (E)-N-[5-(4-methoxy-2-nitrophenyl)furan-2-ylmethylidene]naphthalen-2-amine 
• 415943-88-3 5-(4-methoxy-2-nitrophenyl)furan-2-carbaldehyde 
• 110081-47-5 amino-(4-methoxy-2-nitro-phenylhydrazono)-acetic acid ethyl ester 
• 3189-13-7 6-methoxylindole 
• 23501-92-0 C₁₈H₁₉N₃O₇S 
• 111335-06-9 2-[(4-Methoxy-2-nitro-phenyl)-hydrazono]-5-(3-nitro-phenyl)-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111335-02-5 5-(4-Dimethylamino-phenyl)-2-[(4-methoxy-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 
• 111335-04-7 5-(4-Bromo-phenyl)-2-[(4-methoxy-2-nitro-phenyl)-hydrazono]-1,1,3,3-tetraoxo-1λ⁶,3λ⁶-[1,3]dithiane-4,6-dicarboxylic acid dimethyl ester 

Relevant academic research and scientific papers

METHOD FOR THE PREPARATION OF TRICYCLIC AMINO ALCOHOL DERIVATIVES THROUGH AZIDES

The present invention is directed to processes for the preparation of a tricyclic amino-alcohol derivative useful for treating and preventing diabetes, obesity, hyperlipidemia and the like, which compound is represented by the formula (1): wherein R1 represents a lower alkyl group or a benzyl group; *1 represents an asymmetric carbon atom; R2 represents a hydrogen atom, a halogen atom or a hydroxyl group; and A represents one of the following groups: wherein X represents NH, O or S; R5 represents a hydrogen atom, a hydroxyl group, an amino group or an acetylamino group; and *2 represents an asymmetric carbon atom when R5 is not a hydrogen atom. The processes of the present invention proceed via azide derivatives and are convenient, practical preparing processes with low cost which comprise a small number of steps with good industrial work efficiency.

Process for the preparation of pigment compositions

Preparation of stabilized pigment compositions, comprising mixing a water-miscible quaternary ammonium compound of formula III wherein R1, R2, R3 and R4 independently of each other stand for C1-C22aklyl, C2-C22alkenyl, benzyl, pyridyl, quinolyl, isoquinolyl or polyoxyalkylenyl, and X? is an anion, a water-immiscible organic solvent and a pigment.

Synthesis of Substituted Indoles via Meerwein Arylation

A new method for the synthesis of substituted indoles is detailed.Meerwein arylation of 4- and 6-substituted 2-nitrobenzenediazonium chlorides with vinyl acetate or vinyl bromide and subsequent reductive cyclization of the resulting adducts affords the corresponding 6- and 4-substituted (CH3, OCH3, Cl, Br, CF3) indoles.The diazonium bisulfates of weakly basic 2-nitroanilines (4-Cl, 6-Br, 4-CF3) gave higher yields of Meerwein arylation adducts than the corresponding diazonium chlorides.Coupling of 2-nitrobenzenediazonium chloride with 2-acetoxy-1-alkenes followed byreductive cyclization affords 2-alkylindoles.