Although Georg Geissler was the second author on the paper introducing this reaction, he is never re
Although Georg Geissler was the second author on the paper introducing this reaction, he is never referred to as a namesake of this reaction. One alternative to this reaction uses a compound obtained in the Arbuzov rearrangement; that alternative transforms carbanions into olefins with E-selectivity and is named after Emmons, Wadsworth, and Horner. Another modification to this reaction adds lithium salts to create the threo version of the betaine intermediate, which again creates E-selectivity, instead of the usual Z-selectivity, in the product of that Schlosser modification. For 10 points, what is this reaction that forms olefins from ketones and phosphonium ylides, named after a German chemist?
Although Georg Geissler was the second author on the paper introducing this reaction, he is never referred to as a namesake of this reaction.
Wittig reaction [or Wittig olefination]