212704-99-9

Basic information

• Product Name: 4-[1-(benzo[b]thien-2-yl)ethyl]phenol
• Synonyms: 4-[1-(benzo[b]thien-2-yl)ethyl]phenol
• CAS NO: 212704-99-9
• Molecular Weight: 254.353
• Mol File: 212704-99-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 4-[1-(benzo[b]thien-2-yl)ethyl]phenol(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[1-(benzo[b]thien-2-yl)ethyl]phenol(212704-99-9)
• EPA Substance Registry System: 4-[1-(benzo[b]thien-2-yl)ethyl]phenol(212704-99-9)

Safety Data

• Hazardous Substances Data: 212704-99-9(Hazardous Substances Data)

Upstream product

• 22720-75-8 2-acetyl benzo[b]thiophene 
• 51868-95-2 1-(benzo[b]thiophen-2-yl)ethanol 
• 108-95-2 phenol 

Downstream Products

• 281191-13-7 5-[1-(benzo[b]thien-2-yl)ethyl]-2-(S-dimethylthiocarbamate)benzaldehyde 
• 281191-12-6 5-[1-(benzo[b]thien-2-yl)ethyl]-2-(O-dimethylthiocarbamate)benzaldehyde 
• 281191-11-5 5-[1-(benzo[b]thien-2-yl)ethyl]-2-hydroxybenzaldehyde 

Relevant articles and documents

Characterization and Synthesis of a 6-Substituted Benzo[b]thiophene

An impurity observed during the synthesis of zileuton (Zyflo) has been isolated and characterized as a benzo[o]thiophene derivative that has undergone electrophilic substitution in the 6 position (4). A nine-step synthesis confirms the structural assignment. Key steps in the synthesis include a regioselective Friedel-Crafts coupling between 2-hydroxythioanisole, 8, and 1-(benzo[6]thien-2-yl)ethanol, 1, and formation of a benzo[b]thiophene from an o-methylthiobenzaldehyde, 14, and chloroacetone. The synthesis provides a potentially general route to substituted benzo[6]thiophenes.