17402-83-4

Basic information

• Product Name: 1-BENZOTHIEN-4-YLAMINE
• Synonyms: BENZO[B]THIOPHEN-4-YLAMINE;1-BENZOTHIEN-4-YLAMINE;4-Aminobenzo[b]thiophene;4-Aminobenzothiophene;4-AMinobenzo[b]thiophen;3-aMino-1-benzyl-1H-1$l^{4}-thiophen-1-yl;Benzo[b]thiophen-4-aMine;4-Aminobenzo[B]Thiophenee
• CAS NO: 17402-83-4
• Molecular Formula: C₈H₇NS
• Molecular Weight: 149.21
• Product Categories: Thiophenes
• Mol File: 17402-83-4.mol
• Article Data: 3

Chemical Properties

• Melting Point: 139-140 °C
• Boiling Point: 313.15 °C at 760 mmHg
• Flash Point: 143.188 °C
• Appearance: /
• Density: 1.294 g/cm³
• Vapor Pressure: 0.000506mmHg at 25°C
• Refractive Index: 1.744
• Storage Temp.: under inert gas (nitrogen or Argon) at 2–8 °C
• PKA: 3.96±0.10(Predicted)
• CAS DataBase Reference: 1-BENZOTHIEN-4-YLAMINE(CAS DataBase Reference)
• NIST Chemistry Reference: 1-BENZOTHIEN-4-YLAMINE(17402-83-4)
• EPA Substance Registry System: 1-BENZOTHIEN-4-YLAMINE(17402-83-4)

Safety Data

• Hazardous Substances Data: 17402-83-4(Hazardous Substances Data)

Usage

InChI:InChI=1/C8H7NS/c9-7-2-1-3-8-6(7)4-5-10-8/h1-5H,9H2

Upstream product

• 19995-19-8 4,5,6,7-tetrahydro-4-oxobenzo[b]thiophene oxime 
• 10133-34-3 4-nitrobenzene[b]thiophene 
• 62100-45-2 2-(1-benzo[b]thiophen-4-yloxy)-2-methylpropanamide 
• 857473-95-1 N-(4-nitro-benzo[b]thiophen-5-yl)-acetamide 
• 23692-83-3 3,4-dinitro-benzo[b]thiophene 
• 127491-04-7 4-nitro-benzo[b]thiophen-5-ylamine 
• 18044-91-2 benzo[b]thiophen-5-yl-acetamide 
• 17402-80-1 3-nitrobenzo[b]thiophene 
• 3610-02-4 4-hydroxybenzothiophene 
• 62100-46-3 N-(1-benzo[b]thiophen-4-yl)-2-hydroxy-2-methylpropanamide 

Downstream Products

• 66490-33-3 4-chlorobenzothiophene 
• 5118-13-8 4-bromobenzo[b]thiophene 
• 3610-02-4 4-hydroxybenzothiophene 
• 17402-84-5 N-benzo[b]thiophen-4-yl-acetamide 
• 1429041-87-1 ethyl 5-(benzo[b]thiophen-4-ylamino)-3-(methylthio)-1,2,4-triazine-6-carboxylate 
• 1429041-98-4 ethyl 3-chloro-5-(benzo[b]thiophen-4-ylamino)-1,2,4-triazine-6-carboxylate 
• 913611-97-9 Brexpiprazole 
• 1427045-41-7 octanoic acid 7-[4-(4-benzo[b]thiophene-4-ylpiperazin-1-yl)butoxy]-2-oxo-2H-quinoline-1-ylmethyl ester 
• 1427046-38-5 4-methylpentanoic acid 7-[4-(4-benzo[b]thiophene-4-ylpiperazin-1-yl)butoxy]-2-oxo-2H-quinoline-1-ylmethyl ester 
• 1427046-16-9 pentadecanoic acid 7-[4-(4-benzo[b]thiophene-4-ylpiperazin-1-yl)butoxy]-2-oxo-2H-quinoline-1-ylmethyl ester 
• 1427045-26-8 dodecanoic acid 7-[4-(4-benzo[b]thiophene-4-ylpiperazin-1-yl)butoxy]-2-oxo-2H-quinoline-1-ylmethyl ester 
• 1427045-70-2 decanoic acid 7-[4-(4-benzo[b]thiophene-4-ylpiperazin-1-yl)butoxy]-2-oxo-2H-quinoline-1-ylmethyl ester 
• 846038-18-4 1-benzo[b]thiophen-4-ylpiperazine hydrochloride 
• 5118-14-9 4-bromo-benzo[b]thiophene-1,1-dioxide 

Relevant articles and documents

Preparation method for synthesizing brexpiprazole

The invention provides a preparation method for synthesizing brexpiprazole. The preparation method comprises the following specific steps of using 4-nitrobenzo[b]thiophene as a raw material to carry out a hydrogenation reaction to synthesize an intermediate compound (II), and using 7-hydroxy-1H-quinolin-2-one as a raw material to carry out a reaction to synthesize and obtain a compound (III) at a first step and to obtain an intermediate compound (IV) at a second step; afterwards, condensing the intermediate compound (II) and the intermediate compound (IV) to make a target compound (I), namely the brexpiprazole. Raw materials of the entire synthetic route of the preparation method are both obtained easily; the operation is simple and convenient; the operation cost is low; the preparation method is green and environment-friendly; further, the yield of each step is high; the preparation method is quite suitable for industrialized production, and has extremely high industrial application value.

Smiles rearrangement for the synthesis of 5-amino-substituted [1]benzothieno[2,3-b]pyridine

The Smiles rearrangement was successfully applied to 4-hydroxybenzo[b]thiophene furnishing a facile entry to the 4-amino derivative. The rearrangement was extended to 5-methoxy-4-methoxycarbonyl[1]benzothieno[2,3-b]pyridine obtained via aza-Wittig/electrocyclization reaction of novel N-(4-methoxybenzothiophen-2-yl)iminomethyldiphenylphosphorane with methyl trans-4-oxo-2-pentenoate. The preparation of a novel 5-amino-4-methoxycarbonyl[1]benzothieno[2,3-b]pyridine, which is of interest as a potential secondary peptide structure mimic, was successfully achieved.