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.
Q: The Schlosser modification of this reaction uses excess lithium salts, which stabilize the intermediate betaine created in the first step. The betaine forms an oxygen-containing four-membered ring, which subsequently breaks up into the products. A similarly named modification of this reaction stabilizes one of the reactants, forming the E form of the desired product almost exclusively. Named after the winner of the 1979 Nobel Prize in Chemistry, FTP, name this reaction, which forms an alkene from the reaction of a carbonyl group with a compound known as phosphorane or an ylide.
A:
Science