234-41-3

Basic information

• Product Name: naphtho[1,2-b]thiophene
• Synonyms: naphtho[1,2-b]thiophene;benzo[g][1]benzothiole;benzo[g]benzothiophene
• CAS NO: 234-41-3
• Molecular Formula: C₁₂H₈S
• Molecular Weight: 184.25692
• EINECS: 205-941-2
• Mol File: 234-41-3.mol
• Article Data: 27

Chemical Properties

• Boiling Point: 340.2°Cat760mmHg
• Flash Point: 118.4°C
• Appearance: /
• Density: 1.252g/cm³
• Vapor Pressure: 0.000173mmHg at 25°C
• Refractive Index: 1.756
• CAS DataBase Reference: naphtho[1,2-b]thiophene(CAS DataBase Reference)
• NIST Chemistry Reference: naphtho[1,2-b]thiophene(234-41-3)
• EPA Substance Registry System: naphtho[1,2-b]thiophene(234-41-3)

Safety Data

• Hazardous Substances Data: 234-41-3(Hazardous Substances Data)

Usage

InChI:InChI=1/C12H8S/c1-2-4-11-9(3-1)5-6-10-7-8-13-12(10)11/h1-8H

Upstream product

• 116083-05-7 naphtho[1,2-b]thiophen-3-ol 
• 116608-06-1 3-Benzyl-2-chloromethyl-thiophene 
• 126613-08-9 trifluoromethanesulfonic acid 1-bromonaphthalen-2-yl ester 
• 573-97-7 1-bromo-2-naphthol 
• 1245602-41-8 1-bromo-2-(2’-trimethylsilyl)ethynylnaphthalene 
• 1375801-18-5 2-[2-(2-iodovinyl)phenyl]thiophene 
• 90-15-3 α-naphthol 
• 14474-59-0 naphthalen-1-yl-lithium 
• 85992-27-4 3-chloronaphtho<1,2-b>thiophene-2-carbonyl chloride 
• 85992-28-5 3-Chloro-naphtho[1,2-b]thiophene-2-carboxylic acid 
• 337512-22-8 3-(2-thienoyl)cinnoline 
• 35022-11-8 3-styryl-thiophene 
• 860244-88-8 naphtho[1,2-b]thiophene-4,5-dicarboxylic acid-anhydride 

Downstream Products

• 78604-60-1 2-(3',4'-dimethylphenyl)naphtho<1,2-b>thiophene 
• 345230-06-0 2,3-dihydro-3-(3',4'-dimethylphenyl)naphtho<1,2-b>thiophene 
• 78604-52-1 2,3-dihydro-2-(3',4'-dimethylphenyl)naphtho<1,2-b>thiophene 
• 78643-27-3 2-(2',5'-dimethylphenyl)naphtho<1,2-b>thiophene 
• 78604-56-5 2,3-dihydro-3-(4'-ethylphenyl)naphtho<1,2-b>thiophene 
• 78604-61-2 [2,2']Bi[naphtho[1,2-b]thiophenyl] 
• 78604-57-6 2,3-dihydronaphtho<1,2-b>thiophene 
• 78604-59-8 2-(4'-methylphenyl)naphtho<1,2-b>thiophene 
• 78604-55-4 2,3-dihydro-3-(4'-methylphenyl)naphtho<1,2-b>thiophene 
• 939-27-5 2-ethylnaphthalene 
• 42372-45-2 1-(2-naphthyl)-1-phenyl ethane 
• 6196-94-7 1-ethyl-4-(1-phenylethyl)benzene 
• 78604-53-2 2,3-dihydro-2-(2,5'-dimethylphenyl)naphtho<1,2-b>thiophene 
• 1345093-62-0 C₁₉H₁₃BrS 

Relevant articles and documents

Enhancing the Antiaromaticity ofs-Indacene through Naphthothiophene Fusion

Addressing the instability of antiaromatic compounds often involves protection with bulky groups and/or fusion of aromatic rings, thus decreasing paratropicity. We report four naphthothiophene-fuseds-indacene isomers, one of which is more antiaromatic tha

Method for synthesizing phenanthrene and derivatives thereof

The present invention provides a method for synthesizing phenanthrene and derivatives thereof represented by a formula (III) or (IV). The method is characterized in that a substituted 2-phenylcinnamaldehyde compound represented by a formula (I) or 2-thiophenylcinnamaldehyde represented by a formula (II) is taken as an initial substance, under the effect of a silver catalyst, an oxidant, a basic substance and a solvent, a reaction is carried out at 60 DEG C-100 DEG C for 12-36 hours, the reaction solution is separated and purification is carried out, so that corresponding phenanthrene and derivatives thereof represented by the formula (III) or (IV) are obtained. The synthesis method of the invention has the characteristics of small environmental hazard, mild reaction conditions, simple operation and the like.

Synthetic Utility of Arylmethylsulfones: Annulative π-Extension of Aromatics and Hetero-aromatics Involving Pd(0)-Catalyzed Heck Coupling Reactions

A straightforward and general method for the synthesis of annulated thiophene, dibenzothiophene, and carbazoles analogues has been achieved involving alkylation of 2-bromo-1-(phenylsulfonylmethyl)arene/heteroarene with arylmethyl bromides/heteroarylmethyl bromides using t-BuOK as a base in DMF, followed by Pd(0)-mediated intramolecular Heck coupling in the presence of K2CO3 in DMF at 80-140 °C. The attractive feature of this protocol is that a wide variety of π-conjugated heterocycles could be readily accessed by an appropriate choice of arylmethylsulfones and benzylic bromides.