90766-20-4

Basic information

• Product Name: Benzene, 1-ethenyl-2-ethynyl- (9CI)
• Synonyms: Benzene, 1-ethenyl-2-ethynyl- (9CI)
• CAS NO: 90766-20-4
• Molecular Formula: C₁₀H₈
• Molecular Weight: 128.17052
• Mol File: 90766-20-4.mol
• Article Data: 11

Chemical Properties

• Appearance: /
• CAS DataBase Reference: Benzene, 1-ethenyl-2-ethynyl- (9CI)(CAS DataBase Reference)
• NIST Chemistry Reference: Benzene, 1-ethenyl-2-ethynyl- (9CI)(90766-20-4)
• EPA Substance Registry System: Benzene, 1-ethenyl-2-ethynyl- (9CI)(90766-20-4)

Safety Data

• Hazardous Substances Data: 90766-20-4(Hazardous Substances Data)

Upstream product

• 22801-07-6 o-bis(α,β-dibromoethyl)benzene 
• 141791-38-0 1-ethenyl-2-[2-(trimethylsilyl)ethynyl]benzene 
• 2039-88-5 2-bromostyrene 
• 77123-58-1 2-[2-(trimethylsilyl)ethynyl]benzaldehyde 
• 91-14-5 1,2-divinylbenzene 
• 6630-33-7 ortho-bromobenzaldehyde 
• 1066-54-2 trimethylsilylacetylene 

Downstream Products

• 102851-88-7 1-(2-vinylphenylethylidene)methanamine N-oxide 
• 201215-21-6 1-ethynyl-2-vinylbenzene-d1 
• 91-20-3 naphthalene 
• 723340-04-3 2-(2-ethynylphenyl)oxirane 
• 102851-89-8 dimethyl 2,3-dimethyl-3-(2-vinylphenyl)-isoxazoline-4,5-dicarboxylate 
• 1226889-79-7 2-[(2-vinylphenyl)ethynyl]benzoxazole 
• 1322670-33-6 C₁₄H₁₅NO₃S 
• 1322670-34-7 C₁₄H₁₅NO₄S 
• 1322669-90-8 1-(bromoethynyl)-2-vinylbenzene 
• 1322669-94-2 C₁₄H₁₅NO₂S 
• 1439373-69-9 1-phenyl-5-(o-vinylphenyl)-1H-1,2,3-triazole 
• 1601464-07-6 2-(2-vinylphenyl)-1,8b-dihydrobiphenylene 
• 1601463-98-2 2-(2-vinylphenyl)-1,8b-dihydrobiphenylene-d2 
• 52095-40-6 o-acetylstyrene 

Relevant articles and documents

Au(I)-Catalyzed 6-endo-dig Cyclizations of Aromatic 1,5-Enynes to 2-(Naphthalen-2-yl)anilines Leading to Divergent Syntheses of Benzo[α]carbazole, Benzo[c,h]cinnoline and Dibenzo[i]phenanthridine Derivatives

A gold(I)-catalyzed 6-endo-dig cyclization of aromatic 1,5-enynes was developed to synthesize 2-(naphthalen-2-yl)anilines. The functional group tolerance of this cyclization was examined systematically and a possible mechanism was proposed. The derivatization of 2-(naphthalen-2-yl)aniline was carried out to facile access to benzo[α]carbazole, benzo[c,h]cinnoline and dibenzo[i]phenanthridine derivatives in a divergent way.

Borane catalysed cyclopropenation of arylacetylenes

Triarylboranes have gained substantial attention as catalysts for C-C bond forming reactions due to their remarkable catalytic activities. Herein, we report B(C6F5)3catalysed cyclopropenation of a wide variety of arylacetylenes using donor-acceptor diazoesters. A mild reaction protocol has been developed for the synthesis of functionalised cyclopropenes (33 examples) in good to excellent yields.

Gold(I)-Catalyzed Oxidative Cascade Cyclization of 1,4-Diyn-3-ones for the Construction of Tropone-Fused Furan Scaffolds

Gold(I)-catalyzed cascade cyclization of 1,4-diyn-3-ones with a pyridine N-oxide enabled direct construction of a benzo[6,7]cyclohepta[1,2-b]furan scaffold with the formation of four bonds. This reaction would proceed through oxidative cyclization, alkynyl migration, and 5-endo-dig type cyclization. Synthesis of benzotropone-fused naphtho[1,2-b]furans through a two-step sequence, including epoxidation and In(OTf)3-catalyzed intramolecular carbon-carbon bond formation, is also presented.