Which reaction in each set would be expected to be faster? Explain by showing key intermediates, transition states, and or orbitals. -OTS a. TSO Ph-O or Ph Br or Ph-O solvolysis in acetic acid Ph Br solvolysis in acetic acid
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- Which undergoes electrophilic substitution on the ring most rapidly? a. b. CHO d. e.8) Identify the nucleophile and electrophile in each reaction. А. H. O.. CI CI B.Be sure to answer all parts. The following reaction leads to the given product through a series of two pericyclic reactions. Draw the resulting intermediate in the sequence and account for the observed stereochemistry. SCH3 SCH3 ces H. SCH SCH draw structure ... H.
- A. Predict the major product of the reaction. Clearly indicate stereochemistry, if necessary. ELOH Ph H2SO4 (cat.) B. Draw a detailed arrow-pushing mechanism for the transformation, accounting for stereochemistry, if necessary.Rank the nucleophiles in each group in order of increasing nucleophilicity.a. -OH, -NH2, H2Ob. -OH, Br-, F- (polar aprotic solvent)c. H2O, -OH, CH3CO2-What type of sigmatropic rearrangement is illustrated in each equation? a. b. D
- A.6. Intramolecular Claisen reaction : "Dieckmann Cyclizatim" Predict fhe major product and draw the ran mechanism 25 °C pka: 19 Clue : Byproduct is pkai 17 babel the alds1 domor site" end aldor accoptor" site",1. Each reaction below gives a mixture of two (only two!) diastereomeric products. Draw both diastereomers, placing the structures of the major and minor diastereomers in the indicated boxes in problem C. A. B. C. OMe ACHN NH₂ H₂, Pd H₂, Pt H₂, Pd Major product Minor producta.) b.) LOCH 3 CHO Determine and draw the product of the following reactions. HNO3 / H₂SO4 HNO3 / H₂SO4 c.) ОНС d.) CH3 OCH3 CH3 OCH3 HNO3 / H₂SO4 HNO3/H₂SO4
- 14. Which compound will react third fastest with H,SO.?provide the mechanism! The tautomer that predominates in aqueous solution A. Enol B. Keto form1) Give the MAJOR organic product(s) of the reaction, and include all stereochemistry as appropriate. Identify any meso compounds if they are made. 2) Indicate whether a solution of the product(s) would be optically active OR not active and provide a simple reasoning to support your choice. A. B. C. D. E. 1. BH3. THF 2. NaOH/H₂O2 H₂ Pd/C HBr ROOR Br₂ hv H₂ Pd/C