457885-37-9

Basic information

• Product Name: 2-[(1Z)-1-buten-3-ynyl]-1-({2-[(1Z)-1-buten-3-ynyl]phenyl}ethynyl)naphthalene
• Synonyms: 2-[(1Z)-1-buten-3-ynyl]-1-({2-[(1Z)-1-buten-3-ynyl]phenyl}ethynyl)naphthalene
• CAS NO: 457885-37-9
• Molecular Weight: 328.413
• Mol File: 457885-37-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-[(1Z)-1-buten-3-ynyl]-1-({2-[(1Z)-1-buten-3-ynyl]phenyl}ethynyl)naphthalene(CAS DataBase Reference)
• NIST Chemistry Reference: 2-[(1Z)-1-buten-3-ynyl]-1-({2-[(1Z)-1-buten-3-ynyl]phenyl}ethynyl)naphthalene(457885-37-9)
• EPA Substance Registry System: 2-[(1Z)-1-buten-3-ynyl]-1-({2-[(1Z)-1-buten-3-ynyl]phenyl}ethynyl)naphthalene(457885-37-9)

Safety Data

• Hazardous Substances Data: 457885-37-9(Hazardous Substances Data)

Upstream product

• 153140-75-1 1-bromo-2-[(Z)-2-bromoethenyl]benzene 
• 3378-82-3 1-bromo-2-naphthaldehyde 
• 457885-36-8 triisopropyl{(3Z)-4-[2-({2-[(1Z)-4-(triisopropylsilyl)-1-buten-3-ynyl]-1-naphthyl}ethynyl)phenyl]-3-buten-1-ynyl}silane 
• 457885-28-8 triisopropyl((3Z)-4-{2-[(trimethylsilyl)ethynyl]phenyl}-3-buten-1-ynyl)silane 
• 457885-33-5 [(3Z)-4-(1-iodo-2-naphthyl)-3-buten-1-ynyl](triisopropyl)silane 
• 457885-32-4 [(3Z)-4-(1-bromo-2-naphthyl)-3-buten-1-ynyl](triisopropyl)silane 
• 457885-29-9 [(3Z)-4-(2-ethynylphenyl)-3-buten-1-ynyl](triisopropyl)silane 
• 457885-23-3 [(3Z)-4-(2-iodophenyl)-3-buten-1-ynyl](triisopropyl)silane 
• 457885-22-2 [(3Z)-4-(2-bromophenyl)-3-buten-1-ynyl](triisopropyl)silane 
• 457885-30-2 1-bromo-2-(2,2-dibromovinyl)naphthalene 
• 457885-31-3 1-bromo-2-[(Z)-2-bromoethenyl]naphthalene 

Downstream Products

• 187-83-7 [6]helicene 

Relevant articles and documents

Synthesis of [5]-, [6]-, and [7]helicene via Ni(0)- or Co(I)-catalyzed isomerization of aromatic cis,cis-dienetriynes

An original approach to helicene frameworks exploiting atom economic isomerization of appropriate energy-rich aromatic cis,cis-dienetriynes has been developed. The new paradigm provides nonphotochemical syntheses of helicenes based on the easy, convergent, and modular assembly of key cis,cis-dienetriynes and their nickel(0)-catalyzed [2+2+2] cycloisomerization. The potential of the methodology is underlined by the syntheses of the parent [5]helicene (2), 7,8-dibutyl[5]helicene (23), [6]helicene (24), and [7]helicene (25). The approach can be adapted to prepare functionalized helicenes as exemplified by the eight-step synthesis of 7,8-dibutyl-2,3-dimethoxy[6]helicene (34). Density functional theory (DFT) calculations showed that bis[2-((1Z)-1-buten-3- ynyl)phenyl]acetylene (1) and isomeric [5]helicene (2) differ enormously in the Gibbs energy content (ΔG= -136.6 kcal.mol-1) to favor highly the devised intramolecular simultaneous construction of three aromatic rings.