136408-25-8

Basic information

• Product Name: 2-Cyclohexen-1-one, 3-(4-pentynyl)-
• CAS NO: 136408-25-8
• Molecular Formula: C11H14O
• Molecular Weight: 162.232
• Mol File: 136408-25-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2-Cyclohexen-1-one, 3-(4-pentynyl)-(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Cyclohexen-1-one, 3-(4-pentynyl)-(136408-25-8)
• EPA Substance Registry System: 2-Cyclohexen-1-one, 3-(4-pentynyl)-(136408-25-8)

Safety Data

• Hazardous Substances Data: 136408-25-8(Hazardous Substances Data)

Upstream product

• 66927-74-0 5-bromo-1-(trimethylsilyl)pentyne 
• 144269-91-0 5-(trimethylsilyl)pent-4-ynyl methanesulfonate 
• 13224-84-5 5-trimethylsilanyl-pent-4-yn-1-ol 
• 5323-87-5 3-Ethoxycyclohex-2-en-1-one 
• 28077-72-7 1-bromo-4-pentyne 
• 141462-72-8 3-(5-(trimethylsilyl)pent-4-yn-1-yl)cyclohex-2-en-1-one 

Downstream Products

• 1601389-49-4 (S)-3-(pent-4-yn-1-yl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)cyclohexan-1-one 
• 121056-73-3 3-(4-methoxy-4-pentenyl)-2-cyclohexen-1-one 

Relevant articles and documents

Br?nsted Acid Catalysis in Visible-Light-Induced [2+2] Photocycloaddition Reactions of Enone Dithianes

1,3-Dithiane-protected enones (enone dithianes) were found to undergo an intramolecular [2+2] photocycloaddition under visible-light irradiation (λ=405 nm) in the presence of a Br?nsted acid (7.5–10 mol %). Key to the success of the reaction is presumably the formation of colored thionium ions, which are intermediates of the catalytic cycle. Cyclobutanes were thus obtained in very good yields (78–90 %). It is also shown that the dithiane moiety can be reductively or oxidatively removed without affecting the photochemically constructed ring skeleton.