The Wittig Reaction - Lab Report

INTRODUCTION The purpose of this experiment is to synthesize trans-9-(2-phenylethenyl) anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde by fashion of the reception machine recognized as the Wittig Reaction. The Wittig Reaction allows the tab pusher to synthesize phosphoranes in the lab with relative ease. A more recent and meretricious version of the reaction is the Wittig-Horner reaction (1). ABSTRACT Georg Wittig was a German chemist and Nobel repute superior in 1979 for the Wittig reaction (1). He was born(p) in Berlin, on June 16, 1897, and died fearful 26, 1987 (1). Wittig discovered the route to alkenes through ylide molecules (1). Wittig was educated originally at Tubingen; Wittig spent periods at Braunschweig, Freigurg, backbone to Tubingen again before fetching up the post as director of the organic interpersonal chemistry department at Heidelberg (1). Wittig became an old professor in 1967, where he remained until the end of his notable life story (1). In 1967, he won the Otto Hahn Prize, and in 1979, he and Herbert C. brown were jointly awarded the Nobel Prize for their development of the use of boron and friction match-containing compounds for beta reagents in organic synthesis (1). The foundation of the Wittig reaction is not complex.

morning star is a second row element - in-group 5 - ilk nitrogen, but unlike nitrogen, has the ability to expand its valencey from 3 to 4, 5, or even 6 (1). The stable 5 valencies ar met in compounds like phosphoric acid and PCL (1). Wittig discovered that phosphines, which ar the morning star equivalent of amines, easily form phosphonium salts with alkyl halides and that these s alts quickly dawdle HX with strong base. T! his product is called an ylide or a phosphorane. The ylide is a pivotal molecule with a carbanionic carbon. Figure 1. How to make a morning star ylid (1) In relation to stereochemistry, If you want to get a to the full essay, modulate it on our website: OrderEssay.net

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