例句與造句

1. In addition when Y-Z is an active hydrogen compound the reaction is known as a Michael reaction.
2. A Knoevenagel condensation is a nucleophilic addition of an active hydrogen compound to a carbonyl group followed by a dehydration reaction in which a molecule of water is eliminated ( hence " conjugated enone ).
3. It's difficult to find active hydrogen compounds in a sentence. 用active hydrogen compounds造句挺難的