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 reply machine recognized as the Wittig Reaction. The Wittig Reaction allows the pill pushcart to synthesize phosphoranes in the research laboratory with relative ease. A more(prenominal) recent and meretricious variate of the reception is the Wittig-Horner reaction (1). ABSTRACT Georg Wittig was a German chemist and Nobel pillage 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 road 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 lieu as director of the innate chemistry department at Heidelberg (1). Wittig became an old professor in 1967, where he remained until the end of his renowned life story (1). In 1967, he won the Otto Hahn Prize, and in 1979, he and Herbert C. brown were conjointly awarded the Nobel Prize for their development of the delectation of boron and friction match-containing compounds for of import reagents in organic synthesis (1). The foundation of the Wittig reaction is not complex.

Phosphorus is a cooperate row element - in-group 5 - like nitrogen, but inappropriate 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 atomic number 15 equivalent of amines, advantageously form phosphonium salts with alkyl halides and that these salts quick lose HX with strong base. This overlap 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 get at a full essay, regularise it on our website: Ordercustompaper.com

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