Table 3. Alkanes Condensed Structural Formula Boiling Point (°C) -162 Name Phase Methane Gas CH CH:CH3 CH&CH2CH3 CH.CH2CH2CHS CH&CH:CH2CH2CHS CH.CH2CH2CH2CH2CHS CH&CH2CH2CH2CH.CH:CHa CH.CH2CH2CH CH CH2CH CH Ethane Gas -89 Gas -42 Propane Butane Pentane Hexane Heptane Gas -0.5 Liquid Liquid Liquid Liquid 36 69 98 126 Octane Table 4. Alkenes Name Condensed Structural Formula Boiling Point (°C -104 Phase Ethene Gas CH2-CH2 Gas CH2-CHCH3 -47 Propene 1-Butene CH2 CHCH2CH3 CH2-CHCH2CH2CH3 CH2-CHCH2CH2CH2CH3 Gas -6 -30 Liquid Liquid 1-Pentene 1-Hexene 63 Table 5. Alkynes Condensed Structural Formula Name Phase Boiling Point Ethyne Propyne 2-Butyne Pentyne CH CH CH CCH3 CH3C CCH3 CH CCH2CH2CH3 Gas -84 -47 Gas Gas 8.08 Liquid 40.2 Alkanes are also saturated hydrocarbons. The distinguishing feature of = alkane, making it distinct from other compounds that also exclusively contain carbo and hydrogen, is its lack of unsaturation. Notice that the first four alkanes are gas at room temperature, and solids do not start to appear until ab0 C17H35. These forces will be very small for a molecule like methane but will increa What do you think will be the boiling point of the next alkane, alkene, and alkyne? Will the boiling point of each hydrocarbon be higher or lower? Explain your answer.
Reactions of Ethers
Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.
Epoxides
Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.
Williamson Ether Synthesis
An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.
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