A two-step preparation of ethylamine is shown:
bromomethane→Y→ethylamine \text{bromomethane} \rightarrow \mathbf{Y} \rightarrow \text{ethylamine} bromomethane→Y→ethylamineWhat is Y\mathbf{Y}Y?
CH3CH2NH2\text{CH}_3\text{CH}_2\text{NH}_2CH3CH2NH2
CH3CN\text{CH}_3\text{CN}CH3CN
CH3CH2Br\text{CH}_3\text{CH}_2\text{Br}CH3CH2Br
CH3NH2\text{CH}_3\text{NH}_2CH3NH2