Task: Text Categorization
Input (English): According to Maryanoff and Reitz, interconversion of reaction adducts in this reaction results in stereochemical drift. A triply eponymous alternative to this reaction uses the products of the Arbuzov reaction. This chemical reaction is used in the production of Vitamin A1 by BASF. In a similar reaction to this one, a beta-hydroxysilane undergoes an elimination; that reaction is named for Peterson. That previous alternative is named for Emmons, Wadsworth and Horner. Using a phenyl lithium deprotonating agent allows interconversion of erythreo to threo betaine in the Schlosser modification of this reaction. This reaction can preferentially produce Z-alkenes and its intermediate is an oxophosphetane. For 10 points, name this reaction in which aldehydes or ketones are reacted with a phosphonium ylide.
Output (English): Science