7642-31-1

Basic information

• Product Name: 1-(4-methoxyphenyl)-1,3-butadiyne
• Synonyms: 1-(4-methoxyphenyl)-1,3-butadiyne
• CAS NO: 7642-31-1
• Molecular Weight: 156.184
• Mol File: 7642-31-1.mol
• Article Data: 17

Chemical Properties

• CAS DataBase Reference: 1-(4-methoxyphenyl)-1,3-butadiyne(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(4-methoxyphenyl)-1,3-butadiyne(7642-31-1)
• EPA Substance Registry System: 1-(4-methoxyphenyl)-1,3-butadiyne(7642-31-1)

Safety Data

• Hazardous Substances Data: 7642-31-1(Hazardous Substances Data)

Upstream product

• 131292-07-4 ethyl 5-(4-methoxyphenyl)-3-oxo-2-triphenylphosphoranylidenepent-4-ynoate 
• 4023-80-7 1-(4-methoxyphenyl)butan-1,3-dione 
• 32117-56-9 Triethyl-[4-(4-methoxy-phenyl)-buta-1,3-diynyl]-silane 
• 130248-54-3 1-methoxy-4-[4-(trimethylsilyl)-1,3-butadiyn-1-yl]benzene 
• 696-62-8 para-iodoanisole 
• 2227-57-8 3-(4-methoxyphenyl)propynoic acid 
• 131292-14-3 3-(4-methoxyphenyl)propioloyl chloride 
• 51718-85-5 ethyl 3-(4-methoxyphenyl)propynoate 
• 100-06-1 1-(4-methoxyphenyl)ethanone 
• 117635-52-6 5-Hydroxy-5-methyl-1-(4-methoxylphenyl)hexa-1,3-diyne 
• 460-12-8 Butadiyne 
• 768-60-5 4-methoxyphenylacetylen 
• 33675-41-1 1-bromo-2-(4-methoxyphenyl)acetylene 

Downstream Products

• 38177-92-3 p-Methoxy-phenyl-hexatriin 
• 32117-66-1 Triethyl-[6-(4-methoxy-phenyl)-hexa-1,3,5-triynyl]-silane 
• 4572-10-5 Bis-p-anisyl-octatetrain 
• 1094774-97-6 2-[4-(4-methoxyphenyl)buta-1,3-diynyl]pyrimidine 
• 1318244-92-6 C₁₅H₁₆O₂ 
• 1342892-05-0 diethyl 3-((4-methoxyphenyl)ethynyl)-5-phenyl-1-tosyl-1H-pyrrole-2,2(5H)-dicarboxylate 
• 1370017-50-7 1-(4-fluorobuta-1,3-diynyl)-4-methoxybenzene 
• 1380539-88-7 C₂₈H₂₀F₄N₂O₃ 
• 1380539-87-6 C₂₈H₂₀ClF₃N₂O₃ 
• 1394290-82-4 1-methoxy-4-(6,6,6-trifluorohexa-1,3-diyn-1-yl)benzene 
• 1394290-96-0 C₁₃H₈⁽²⁾HF₃O 
• 1415638-80-0 N-(5-(4-methoxyphenyl)-1-phenylpenta-2,4-diyn-1-yl)-4-methylbenzenesulfonamide 
• 1429511-46-5 C₂₃H₃₇ClOP₂Pd 
• 1575710-78-9 3,5-diallyl-2-(4-methoxyphenyl)-6-phenylfuro[2,3-b]pyridine 

Relevant articles and documents

Catalytic Cyclotrimerization Pathway for Synthesis of Selaginpulvilins C and D: Scope and Limitations

A facile and unified approach to the main selaginpulvilin's framework was achieved by catalytic [2 + 2 + 2]-cyclotrimerization of a triyne with monosubtituted alkynes. The reaction proceeded with high "ortho"selectivity by using Wilkinson's catalyst (RhCl

Cyclobutene vs 1,3-Diene Formation in the Gold-Catalyzed Reaction of Alkynes with Alkenes: The Complete Mechanistic Picture

The intermolecular gold(I)-catalyzed reaction between arylalkynes and alkenes leads to cyclobutenes by a [2 + 2] cycloaddition, which takes place stepwise, first by formation of cyclopropyl gold(I) carbenes, followed by a ring expansion. However, 1,3-butadienes are also formed in the case of ortho-substituted arylalkynes by a metathesis-type process. The corresponding reaction of alkenes with aryl-1,3-butadiynes, ethynylogous to arylalkynes, leads exclusively to cyclobutenes. A comprehensive mechanism for the gold(I)-catalyzed reaction of alkynes with alkenes is proposed on the basis of density functional theory calculations, which shows that the two pathways leading to cyclobutenes or dienes are very close in energy. The key intermediates are cyclopropyl gold(I) carbenes, which have been independently generated by retro-Buchner reaction from stereodefined 1a,7b-dihydro-1H-cyclopropa[a]naphthalenes.

Total Synthesis of Selaginpulvilin C and D Relying on in Situ Formation of Arynes and Their Hydrogenation

The total syntheses of selaginpulvilins C and D is described. The key strategy for the construction of the core fluorene moiety involves in situ formation of an aryne intermediate followed by its formal hydrogenation. The precursor tetraynes that undergo