A student researched lab analysis about the formation of carbon-carbon double bonds via the wittig experiment and the hydrolysis of the ester the name of the carboxylic acid formed was. Experiment 5: wittig reaction purpose the purpose of this experiment is to synthesize trans-9-(2-phenylethenyl) anthracene using a wittig reagent formed by reacting phosphonium chloride.
Industrial applications of the wittig reaction hoist pommer and peter c thieme basf aktiengesellschaft, d-6700 ludwigshafen/rh, frg the wittig reaction opened up for this synthesis a. Wittig reaction the wittig reaction allows the preparation of an alkene by the reaction of an aldehyde or ketone with the ylide generated from a phosphonium salt the geometry of the. Introduction:the purpose of this experiment is to determine how a nitro group on benzaldehyde affects the stereoisomer formation of the alkene formed in a wittig reaction the nitro group is.
View notes - chem262lep5 from chem 262l at university of north carolina carolyn johnson chem 262l, sec 419 wed 1pm experiment 5 a wittig reaction: preparation of a para-methoxycinnamic acid. Wittig olefination (also known as the wittig reaction) work up was performed using hydrochloric acid solution (3 ml) trying to condense my writing in to a more concise format and.
Experiment 11: synthesis of dibenzalacetone by the aldol condensation introduction: the aldol condensation reaction, under basic conditions, involves the nucleophilic addition of an enolate. View andrade_experiment5 from chem 262 at university of north carolina chem 262l francisco andrade wittig reaction: preparation of a para-methoxycinnamic acid purpose: the purpose of this. This week’s reaction was the hwe-modified wittig reaction (and here) between para-anisaldeyhde and triethyl phosphonoacetate saponification, followed by recrystallization of the acidified.
Transcript of wittig reactions investigate the effect of varying a particular variable on stereochemical outcome of wittig reaction then distinguish whether the final product is in the e. The wittig reaction is the reaction of an aldehyde or ketone with a triphenyl phospho- nium ylide to give an alkene and triphenylphosphine oxide the wittig reaction was.
Chm624 advanced organic chemistry laboratory experiments extracted from: harwood, lm moody, cj experimental organic chemistry: principles and practice, blackwell scientific.