Instructions: In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Input: Reaction of these compounds with a strong acid may produce a tri-alkyl oxonium salt. Allyl aryl ones can undergo the Claissen Rearrangement, and the smallest cyclic member of this group is ethylene oxide, while cyclic poly- ones are known as "crown. " Members of this class of chemicals can be produced by dehydroxation of alcohols or by alkoxide nucleophilic displacement on an alkyl halide, which is known as the Williamson synthesis. FTP, name these chemical compounds defined by the presence of an oxygen bonded to two alkyl groups and perhaps best known for their diethyl variety, which is a notable anesthetic.
Output:
Science