138770-85-1

Basic information

• Product Name: Benzene, 1-methoxy-4-(1,3-octadiynyl)-
• CAS NO: 138770-85-1
• Molecular Formula: C15H16O
• Molecular Weight: 212.291
• Mol File: 138770-85-1.mol

Chemical Properties

• CAS DataBase Reference: Benzene, 1-methoxy-4-(1,3-octadiynyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-methoxy-4-(1,3-octadiynyl)-(138770-85-1)
• EPA Substance Registry System: Benzene, 1-methoxy-4-(1,3-octadiynyl)-(138770-85-1)

Safety Data

• Hazardous Substances Data: 138770-85-1(Hazardous Substances Data)

Upstream product

• 693-02-7 hex-1-yne 
• 768-60-5 4-methoxyphenylacetylen 
• 94957-42-3 n-hexynyl(phenyl)iodonium tosylate 
• 138583-92-3 C₁₉H₁₄CuNO₂^(2-)*2Li⁽¹⁺⁾ 
• 1120-29-2 5,7-dodecadiyne 
• 22779-05-1 1,4-bis(4-methoxyphenyl)-1,3-butadiyne 

Downstream Products

• 1120-29-2 5,7-dodecadiyne 
• 22779-05-1 1,4-bis(4-methoxyphenyl)-1,3-butadiyne 

Relevant articles and documents

Pd-catalyzed C(sp3)-C(sp) bond formation in iodocyclobutenes

A synthesis of skipped 1,4-enynes through functionalization of the cyclobutene core with alkynes has been achieved, suggesting an unusual pathway of oxidative addition in tertiary iodoalkanes. This journal is

Copper Nanoparticles on Ordered Mesoporous Carbon Nitride Support: a Superior Catalyst for Homo- and Cross-Coupling of Terminal Alkynes under Base-Free Conditions

A novel ordered mesoporous carbon nitride (OMCN) was synthesized as a functionalized support with 2,4,6-trichloro-1,3,5-triazine and benzidine as starting materials in the presence of SBA-15 as a template. Copper nanoparticles were then loaded on the C–N material to achieve a novel nanocomposite catalyst (Cu NPs-OMCN). The nanocomposite was utilized as a highly efficient catalyst for homo- and cross-coupling of terminal alkynes under base-free conditions in ethanol, and various symmetrical and unsymmetrical 1,3-diynes were obtained with good to excellent yields. Moreover, based on this reaction, a one-pot approach to synthesize 2,5-disubstituted thiophenes and furans from terminal alkynes were developed. Furthermore, the heterogeneous catalyst could be recovered and reused conveniently for several times with satisfactory yields.

Recyclable Cu/C3N4 composite catalysed homo- and cross-coupling of terminal alkynes under mild conditions

A Cu/C3N4 composite was prepared and utilized as a highly efficient and environmentally friendly catalyst for the homo- & cross-coupling of terminal alkynes. Excellent functional group tolerance and good yields were observed with oxygen as an oxidant in an isopropanol solution (or as additive) under ambient conditions. Furthermore, the composite catalyst shows good recyclability and can be recovered simply and reused several times without significant loss in its catalytic activities.

Synthesis of unsymmetrical 1,3-diynes via alkyne cross-metathesis

The tungsten benzylidyne complex [PhC≡W{OSi(OtBu)3} 3] (1) efficiently catalyses the metathetic conversion between symmetrical and unsymmetrical 1,3-diynes, which provides the opportunity to prepare the latter species directly from terminal alkynes by a combination of copper-catalysed homocoupling and catalytic alkyne cross-metathesis (ACM).

Selective Coupling Reactions of Alkynyl(phenyl)iodonium Tosylates with Alkynylcopper Reagents

Alkynyl(phenyl)iodonium tosylates react with mixed cuprates coordinated by alkynyl components to give unsymmetrical diacetylenes selectively; the coupling reaction with dialkylcuprates afforded substituted alkynes.