1218795-31-3

Basic information

• Product Name: 2-(butylselenyl)-3-(phenylethynyl)-thiophene
• Synonyms: 2-(butylselenyl)-3-(phenylethynyl)-thiophene
• CAS NO: 1218795-31-3
• Molecular Weight: 319.329
• Mol File: 1218795-31-3.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2-(butylselenyl)-3-(phenylethynyl)-thiophene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(butylselenyl)-3-(phenylethynyl)-thiophene(1218795-31-3)
• EPA Substance Registry System: 2-(butylselenyl)-3-(phenylethynyl)-thiophene(1218795-31-3)

Safety Data

• Hazardous Substances Data: 1218795-31-3(Hazardous Substances Data)

Upstream product

• 67237-53-0 3-ethynylthiophene 
• 109-72-8 n-butyllithium 
• 108-86-1 bromobenzene 
• 109-65-9 1-bromo-butane 
• 131423-29-5 1-phenyl-2-(3-thienyl)ethyne 

Downstream Products

• 1218795-47-1 4-iodo-5-phenylselenopheno[2,3-b]thiophene 
• 1218795-48-2 5-phenyl-4-(phenylselanyl)selenopheno[2,3-b]thiophene 
• 1431569-60-6 4-(n-butyltelluro)-5-(phenylseleno)selenophene[2,3-b]thiophene 
• 1431569-55-9 5-phenyl-4-(4-(p-tolyl)phenylseleno)selenophene[2,3-b]thiophene 
• 1431569-56-0 5-phenyl-4-(4-fluorophenylseleno)selenophene[2,3-b]thiophene 
• 1431569-57-1 5-phenyl-4-(4-chlorophenylseleno)selenophene[2,3-b]thiophene 
• 1431569-58-2 5-phenyl-4-(phenyltelluro)selenophene[2,3-b]thiophene 
• 1431569-59-3 4-(n-butylseleno)-5-phenylselenophene[2,3-b]thiophene 
• 1218795-62-0 4-(4-bromophenyl)-5-phenylselenopheno[2,3-b]thiophene 
• 1218795-63-1 5-phenyl-4-p-tolylselenopheno[2,3-b]thiophene 

Relevant articles and documents

FeCl3-diorganyl dichalcogenides promoted cyclization of 2-organochalcogen-3-alkynylthiophenes: Synthesis of chalcogenophene[2,3-b] thiophenes

We report here our results on the FeCl3-diorganyl dichalcogenides intramolecular cyclization of 2-organochalcogen-3- alkynylthiophenes. The cyclization reaction proceeded cleanly under mild reaction conditions giving the (S)-Se-, (S)-S- and (S)-Te-heterocycles in good yields. In addition, the obtained chalcogenophenes were readily transformed into more complex products using the palladium cross-coupling reaction with boronic acids. Conversely, using a metal-halogen exchange reaction with n-BuLi, the chalcogenophenes produced the lithium-intermediate which was trapped with aldehyde furnishing the desired secondary alcohol in good yield. The Royal Society of Chemistry 2013.