18428-06-3

Basic information

• Product Name: 8,9,10,11-Tetrahydrobenzo[b]naphtho[1,2-d]thiophene
• Synonyms: 8,9,10,11-Tetrahydrobenzo[b]naphtho[1,2-d]thiophene
• CAS NO: 18428-06-3
• Molecular Formula: C₁₆H₁₄S
• Molecular Weight: 0
• Mol File: 18428-06-3.mol
• Article Data: 3

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 8,9,10,11-Tetrahydrobenzo[b]naphtho[1,2-d]thiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 8,9,10,11-Tetrahydrobenzo[b]naphtho[1,2-d]thiophene(18428-06-3)
• EPA Substance Registry System: 8,9,10,11-Tetrahydrobenzo[b]naphtho[1,2-d]thiophene(18428-06-3)

Safety Data

• Hazardous Substances Data: 18428-06-3(Hazardous Substances Data)

Upstream product

• 1056477-06-5 2-bromocyclohexanone 
• 39689-37-7 sodium salt of β-mercaptonaphthalene 
• 91-60-1 2-Naphthalenethiol 
• 822-87-7 2-Chlorocyclohexanone 

Downstream Products

• 205-43-6 Benzo[b]naphtho[1,2-d]thiophene 
• 40358-51-8 1-cyclohex-1-enyl-naphthalene 
• 3042-69-1 1-cyclohexylnaphthalene 
• 90501-15-8 cyclohexyl-5 tetraline 
• 90501-18-1 decahydro(1,2,3,4,7a,8,9,10,11,11a)benzo(b)naphto<1,2-d>thiophene 
• 90501-17-0 hexahydro(7a,8,9,10,11,11a)benzo(b)naphto<1,2-d>thiophene 

Relevant articles and documents

One-pot synthesis using the supported reagent system Na2CO 3/SiO2-PPA/SiO2: Synthesis of Benzo[b]thiophenes and naphthothiophenes

A simple and efficient method has been developed for the synthesis of benzo[b]thiophenes and naphtho[2,l-6]thiophenes from arenethiols and α-halo ketones using Na2CO3/SiO2-PPA/ SiO2. Reaction of a-halo ketones with arenethiols is promoted by Na2CO3/SiO2 to afford α-sulfanyl ketones, which cyclize in the presence of PPA/SiO2 to give the corresponding thiophene-fused arenes in one-pot. The reaction using α-bromo acetals instead of α-halo ketones also gave the corresponding naphtho[2,l-b] thiophenes via a three-step reaction in one-pot. Thieme Stuttgart.

Hydrodesulfuration de molecules polycycliques aromatiques sulfurees sur catalyseur NiMo/γAl2O3: Etude du benzo(b)naphtothiophene et du tetrahydro-8,9,10,11 benzo(b)naphtothiophene

The hydrodesulfurisation of two aromatic polycyclic compounds has been studied on sulfurised NiMo/Al2O3 catalyst at 250 deg C, 40 atm in dodecane: benzo(b)naphthothiophen and 8,9,10,11-tetrahydrobenzo(b)naphthothiophen.For these two molecules, there always is competition between the different processes, hydrogenation of the thiophen double bond, hydrogenation of the aromatic (naphthenic) part and desulfurisation.This result is very different from those found for benzo(b)thiophen, where the first step was hydrogenation of the olefinic double bond prior to desulfurisation, and for dibenzothiophen, where desulfurisation (hydrogenolysis) takes place prior to hydrogenation.The main consequence of this behaviour is that the heavier the sulfur compounds the more important the consumption of hydrogen will be in the overall hydrotreatment process on this catalyst because hydrogenation of aromatic rings competes with hydrogenolysis.