The Wittig Reaction - Lab Report

INTRODUCTION The purpose of this experiment is to compound trans-9-(2-phenylethenyl) anthracene from benzyltriphenylphosphonium chloride and 9-anthraldehyde by means of the answer machine recognized as the Wittig Reaction. The Wittig Reaction allows the pill drug trafficker to synthesize phosphoranes in the research lab with relative ease. A more than recent and meretricious var. of the reaction is the Wittig-Horner reaction (1). ABSTRACT Georg Wittig was a German chemist and Nobel regard winner in 1979 for the Wittig reaction (1). He was born(p) in Berlin, on June 16, 1897, and died August 26, 1987 (1). Wittig discovered the lane to alkenes through ylide molecules (1). Wittig was educated in the first place at Tubingen; Wittig spent periods at Braunschweig, Freigurg, backbone to Tubingen again originally taking up the interest as director of the positive chemistry department at Heidelberg (1). Wittig became an old professor in 1967, where he remained until the end of his leading light life story (1). In 1967, he won the Otto Hahn Prize, and in 1979, he and Herbert C. brown were collectively awarded the Nobel Prize for their development of the wasting disease of boron and friction match-containing compounds for important reagents in organic synthesis (1). The foundation of the Wittig reaction is non complex.

Phosphorus is a certify row element - in-group 5 - like nitrogen, but contradictory 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 phosphorus equivalent of amines, slow form phosphonium salts with alkyl halides and that these salts chop-chop lose HX with strong base. This harvesting is called an ylide or a phosphorane. The ylide is a polar molecule with a carbanionic carbon. Figure 1. How to make a phosphorus ylid (1) In relation to stereochemistry, If you want to make out a full essay, inflect it on our website: Orderessay

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