Gas-phase pyrolytic reaction of 4-aryl-3-buten-2-ols and allyl benzyl ethers: kinetic and mechanistic study.
Flash vacuum pyrolysis (FVP) of 4-aryl-3-buten-2-ols [ArCH=CH-CH(CH3)OH, where Ar is phenyl, p-MeO, p-Me, p-Cl, p-NO2] gave the corresponding buta-1,3-dien-1-ylbenzene (ArCH=CH-CH=CH2, where Ar is Ph, p-MeO, p-Me, p-Cl, p-NO2) and 7-X-1,2-dihydronaphthalene derivatives (where X is H, MeO); FVP of 1-aryl-3-benzyloxy1-1-butenes and benzyl cinnamyl ethers [ArCH=CHCH(X)OCH2Ph, where Ar is phenyl, p-MeO, p-Me, p-Cl, X is H, Me, Ph] gave the corresponding but-2-en-1-ylbenzene derivatives (ArCH2CH=CH-X, where X is H, Me, Ph) together with benzaldehyde. The proposed mechanism of these pyrolytic transformations was supported by kinetic and product analysis.
Al-Etaibi
Alya M
AM
Natural Science Department, College of Health Science, Public Authority for Applied Education and Training, Kuwait.
Al-Awadi
Nouria A
NA
Ibrahim
Maher R
MR
Ibrahim
Yehia A
YA
D000438:Alcohols / Q000138:chemical synthesis / Q000737:chemistry*; D004987:Ethers / Q000138:chemical synthesis / Q000737:chemistry*; D005740:Gases / Q000737:chemistry*; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D013696:Temperature
D000438:Alcohols; D004987:Ethers; D005740:Gases