Question

Question 17 (1 point) Ethers can be prepared from alcohols by? O a reductive addition. O an oxidative addition. O a nucleophilic substitution. O an electrophilic addition. O a condensation.

Answer 1

17) Ethers can be prepared from alcohols by nucleophilic substitution reaction. The reaction involves SN attack of alcohol molecule on a protonated alcohol. 2 eH3-CH-OH He $14-0-5! HO-CH=Ct3 CH - CH - OH + + c - ốn, 413k н 19 CH-CH-0-CH-CH: H* Cų=(-0-04-05 Addition of 140 ni presence $ H (le 46) to an alkene produces secondary alcohol. Ad Grignaid reaction of aldehyde, ketone and ester ako produces alcohol. But the reaction of alkyl halide with an organo cuprate will not produce alcohol. Organo cuprates are used in cross coupling to form higher alkanes. Fischer esterification is acid catalysed esterification a carboxylic and with alcohols. This reaction is of reversible. R-COOH + R'OH H R-cooŘ + 40 ; According to he-chaletier's princple addition of reactants ie carboxylic or alcohol shifts the equilibrium to right; Also removal of products ie ester or alcohoh shifts the equilibrium to right. Hene Answer is All of the above.