siame. hswers on the answe I. Multiple Choice: Chose the on 1. Which one of the following dienes will not react in a Diels Afder reaction? of C 2. Which one of the following compounds will not react by Friedel-Crafts alkylation or acylation? -NHCH3 CH3 -NHCHO C ich one is the anti-aromatic compound?
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- H. H ÔMe Ph;P LIAIH4 compound a compound b HO. Bombykol C16H300 The above reaction scheme presents one possible synthesis of the compound. Work out the synthesis on a separate sheet of paper, and then draw the structure of compound b. Consider E/Z stereochemistry of alkenes. Do not show stereochemistry in other cases.Rank the following compounds in order from slowest to fastest rate of reaction in a Diels–Alder reaction with ethene.Rank the following dienophiles in order of increasing reactivity.
- Provide the reagents. Но + enantiomer A 1. KOt-Bu, heat 2. mCPBA 3. MeMgBr 4. H2O B. 1. conc. H,SO4, heat 2. MCPBA 3. MeBr С. 1. РBгз 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O D. 1. Br2, hv 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O E. 1. Br2, hv 2. KOt-Bu 3. MCPBA 4. MeBr 5. H2O F. 1. Br2, FeBr3 2. KOt-Bu 3. mCPBA 4. MeMgBr 5. H2O G. 1. Br2, FeBr3 2. KOt-Bu 3. mCPBA 4. MeBr 5. H204. The following compound undergoes an intramolecular Diels-Alder reaction. Show the mechanism and expected product. Pay attention to stereochemistry. heat PhExplain the observed reactivity rate of the following alkyl halides in an SN1 reaction. -CI slowest rate anti-aromatic least stable answer. + non-aromatic CI CN Propose the product of the following reaction (hint: this is a two step-reaction. Reaction one is an electrocyclic ring opening and step 2 is a cycloaddition reaction). Be sure to include stereochem in your CN fastest rate A CI aromatic most stable
- Determine the mechanism of nucleophilic substitution of each reaction and draw the products, including stereochemistry. CH₂CH3 a. b. C. x Br + CN Br H Br + OCH3 + CH3OH CH₂CH₂CH3 acetone DMSO d. CI + CH3 e. f. H Br CH3COOH + -OCH₂CH3 + CH3CH₂OH DMFWhat diene and what dienophile should be used to synthesize the following?Draw the diene and dienophile that are needed to prepare the following Diels-Alder product. Diene: draw structure. Dienophile: draw structure ..
- Rank the following in order from slowest to fastest rate of reaction in a Diels–Alder reaction with buta-1,3-dienea. Propose a mechanism for the following reaction. (Hint: An electrocyclic reaction is followed by a Diels–Alder reaction.)b. What would be the product if trans-2-butene were used instead of ethene?From 1 being the least reactive and 4 being the most reactive rank the following alkyk chlorides in terms of increasing reactivity via SN2 reaction mechanism.