Ethers H H
Ethers
H-Bonding in Ethers Alcohol Ether Alcohol ether H R O-R R R R R hydrogen bond no hydrogen bond hydrogen bond donor acceptor no donor acceptor donor acceptor
H-Bonding in Ethers
Solvation ether solvates cations: alcohol solvates cations and anions: R R R R H… …H (not well solvated) R R O-R
Solvation
Crown Ethers Can Act as Phase Transfer Catalysts 12-crown-4 15-crown-5 18-crown-6 solvates Lit solvates Na+ solvates K+ 18-crown-6 with K+solvated
Crown Ethers Can Act as Phase Transfer Catalysts
Nomenclature butyl ethyl ether(common) or 1-ethoxybutane (IUPAC) trans 1-bromo-2-methoxycyclopentane CH3CH2O OH ethyl(Z)1-propenyl ether(common) CH:CH2O or (Z)1-ethoxy-1-propene (IUPAC) 4,4-diethoxy-2-cyclohexenol
Nomenclature O butyl ethyl ether (common) 1-ethoxybutane (IUPAC) or OCH3 Br trans 1-bromo-2-methoxycyclopentane ethyl (Z) 1-propenyl ether (common) (Z) 1-ethoxy-1-propene (IUPAC) or OH CH3 CH2 O CH3 CH2 O 4,4-diethoxy-2-cyclohexenol O