a) In the decarboxylative elimination, two different solvents are used, butanone and water. What types of...

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Chemistry

a) In the decarboxylative elimination, two different solventsare used, butanone and water. What types of solvents are these andwhy is that important for the ultimate course of reaction in eachcase? b) Starting with (R,R)-2-3-dibromo-3-phenylpropanoic acid,which alkene products you would expect to observe if doing thereaction in water? How about in butanone? Provide reactionmechanisms to support your answers. be different. c) which alkeneproduct would be expected if (S,S)-2,3-dibromo-3-phenylpropanoicacid isomer was used as a substrate? How about (R,S) or (S,R)isomers? explain briefly. d) The final alkene beta-bromostyreneproduct was washed with brine solution. what is the function of thebrine solution?

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In both solvents water and butanone the first step isdeprotonation of the acid by a base to give the correspondingcarboxylate which then eliminates Br andCO2If the polarity of the solvent is low or intermediate in thecase for butanone elimination of CO2 andBr occurs in a singlestep concerted reaction E2type See Answer

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