23833-56-9

Upstream product

• 1122-91-4 4-bromo-benzaldehyde 
• 959-88-6 1,4-bis(4-bromodiphenyl)buta-1,3-diyne 
• 4363-35-3 Dihydroxy-styryl-boran 
• 766-96-1 4-bromo-1-ethynylbenzene 
• 386213-46-3 2-((E)-4-stilbenyl)-1,1-dibromoethene 
• 32555-96-7 4-styrylbenzaldehyde 
• 100-42-5 styrene 
• 386213-51-0 1-bromo-2-((E)-4-stilbenyl)ethyne 
• 22666-07-5 di-p-tolylbutadiyne 
• 538-51-2 benzylidene phenylamine 

Relevant academic research and scientific papers

Site-selective sequential coupling reactions controlled by "electrochemical Reaction Site Switching": A straightforward approach to 1,4-bis(diaryl)buta-1,3-diynes

Site-selective sequential coupling reactions directed toward bis(diaryl)butadiynes are described. The reaction site could be controlled completely by the on/off application of electricity. The electro-oxidative homo-coupling of terminal alkynes (electricity ON) and the subsequent Suzuki-Miyaura coupling (electricity OFF) afforded bis(diaryl)butadiynes in high yields. The obtained 1,4-bis(diaryl)butadiynes could be converted to a 2,5-bis(diaryl)thiophene derivative, which exhibited blue fluorescence. The Royal Society of Chemistry 2012.

Synthesis of 1-aryl-1,3-diyne and 2-aryl-1,1-dialkynylethene from the Sonogashira reactions of 2-aryl-1,1-dibromoethene

Both 1-aryl-1,3-diyne and 2-aryl-1,1-dialkynylethene were produced from the Sonogashira reactions of 2-aryl-1,1-dibromoethene with 1-alkyne. The ratio of the products varied according to the reaction conditions. The coupling reactions in benzene afforded