62108-18-3

Basic information

• Product Name: 5-Methoxy-2-pentyne
• Synonyms: 5-Methoxy-2-pentyne
• CAS NO: 62108-18-3
• Molecular Formula: C6H10O
• Molecular Weight: 98.14
• Mol File: 62108-18-3.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 123 °C
• Appearance: /
• Density: 0.837±0.06 g/cm3(Predicted)
• CAS DataBase Reference: 5-Methoxy-2-pentyne(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Methoxy-2-pentyne(62108-18-3)
• EPA Substance Registry System: 5-Methoxy-2-pentyne(62108-18-3)

Safety Data

• Hazardous Substances Data: 62108-18-3(Hazardous Substances Data)

Upstream product

• 10229-10-4 pent-3-yn-1-ol 
• 74-88-4 methyl iodide 
• 103670-56-0 1,1-dibromo-4-methoxy-2-methylbut-1-ene 
• 917-54-4 methyllithium 

Relevant articles and documents

Ring-size ans Substituent Effects in Intramolecular Reactions of Alkylidenecarbenes (Carbenoids)

Intramolecular reaction of methylenecarbenes (carbenoids), derived by reaction of 1,1-dibromoalkenes and methyllithium, with 5,6-related C-H bonds leads to cyclopentenes when there is an alkoxy or amino substituent on C-5, but no reaction occurs at a 4,5-related C-H bond when there is a heteroatom on C-4; when there is an alkylthio group either on C-4 or C-5 attack occurs on sulphur and the alkyl group is lost, leading to a 2,3-dihydrothiophene or a 3,4-dihydro-2H-thiopyran respectively.If a heteroatom-hydrogen bond is present at the 5,6-position a formal insertion occurs at that bond leading to 2,3-dihydropyrroles, 2,3-dihydrofuranes or 2,3-dihydrothiophenes.