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- Briefly explain why the Suzuki reaction can take place in aqueous solution whereas a Grignardreaction requires anhydrous conditions.What is the major difference between catalytic reduction and non-catalylic reduction techniques?what would a detailed step-by-step mechanism be for a reaction between bromine and trans-stilbene if the solvent, ethanol, is a stronger nucleophile than the bromide ions?
- Compare the relative case of oxidation of primary, secondary and tertiary alcohol toward the dichromate acid based on the time required for each sample to change colorWrite the complete mechanism (including intermediates) for the reaction of trans-stilbene with bromine in dichloromethane.Describe the six steps that take place during heterogenously (hydrogenation) of ethene on a nickel catalyst. Be specific to the reaction, do not just list generic steps.
- in a reaction where trans-stilbene reacts with a molecule of bromine while using ethanol as a solvent, what would happen if the ethanol was a more reactive nucleophile than the bromide ion(s)? what would the product look like?complete overall reaction when taking KAuCl4 in methanol mixed with 2-phenyl-1,10-phenanthroline in dichloromethaneThe Wittig Reaction allows the preparation of an alkene by the reaction of an aldehyde or ketone with the ylide generated from a phosphonium salt. From the reaction, write the mechanism of Wittig reaction and Wittig reaction application
- How the rate of reaction is affected by phenomenon of selectivity explain with at least 3 examples.Imagine that phenol (“hydroxybenzene”) and nitrobenzene are reacted (in separate beakers) with a hot solution containing both concentrated sulfuric acid and concentrated nitric acid. A) In analyzing the products, you discover that the substitution pattern resulting from the reaction with phenol differs from the reaction with nitrobenzene. Explain this difference in substitution patterns using one or more judiciously selected reaction mechanisms or portions of mechanisms.Will adding carboxylic acid added in excess and the alcohol as the limiting reagent maximize the yield in synthesizing esther?