501072-71-5

Basic information

• Product Name: Benzene, 1,4-bis[4,4-dibromo-3-[4-(1,1-dimethylethyl)phenyl]-3-buten-1-ynyl]-2,5- bis(octyloxy)-
• CAS NO: 501072-71-5
• Molecular Formula: C50H62Br4O2
• Molecular Weight: 1014.66
• Mol File: 501072-71-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: Benzene, 1,4-bis[4,4-dibromo-3-[4-(1,1-dimethylethyl)phenyl]-3-buten-1-ynyl]-2,5- bis(octyloxy)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1,4-bis[4,4-dibromo-3-[4-(1,1-dimethylethyl)phenyl]-3-buten-1-ynyl]-2,5- bis(octyloxy)-(501072-71-5)
• EPA Substance Registry System: Benzene, 1,4-bis[4,4-dibromo-3-[4-(1,1-dimethylethyl)phenyl]-3-buten-1-ynyl]-2,5- bis(octyloxy)-(501072-71-5)

Safety Data

• Hazardous Substances Data: 501072-71-5(Hazardous Substances Data)

Upstream product

• 173428-81-4 1,4-bis[(trimethylsilyl)-ethynyl]-2,5-bis-(octoxy)benzene 
• 1710-98-1 p-tert-butyl benzoyl chloride 
• 558-13-4 carbon tetrabromide 
• 501072-70-4 1,4-bis[3-(4-tert-butylphenyl)-3-oxopropenyl]-2,5-bis(octyloxy)benzene 

Relevant articles and documents

Synthesis of unsymmetrically substituted 1,3-butadiynes and 1,3,5-hexatriynes via alkylidene carbenoid rearrangements

Unsymmetrically substituted 1,3-butadiynes and 1,3,5-hexatriynes are synthesized in four steps from commercially available aldehydes or carboxylic acids. The key step in this process involves a Fritsch-Buttenberg-Wiechell rearrangement, in which an alkylidene carbenoid intermediate subsequently rearranges to the desired polyyne. This rearrangement proceeds under mild conditions, and it is tolerant of a range of functionalities. In general, the procedurally facile formation of the dibromoolefinic precursors, in combination with the effectiveness of the rearrangement step, makes this procedure an attractive alternative to traditional methods for di- and triyne synthesis that utilize palladium or copper catalysis.