1. Intramolecular SN2 reactions can occur if the product is a stable (5-, 6-, or 7-membered) ring. Draw a reasonable mechanism for this reaction. HO NaH THF
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- b).. .. Under each potential product of this E2 elimination, write "major product," "minor product," or "not formed." Me Br H Me Me OH Me Ph Ph H Me H Et Me Me Me Ph Ph Me Me Et5. Draw the mechanism of the following SN1 reaction and the products with Stereochemistry. Draw the intermediate. Br ||||| H :O: HWhich SN2 reaction will occur most rapidly? (Assume the concentrations and temperatures are all the same.) CH A CH,0 + + CI- B CH,0 CH3 CH,0+ +F CHO CH, Br Br
- In EAS bromination reactions, a -NHCOCH3 substituent on the aromatic ring is: O an activator and an o,p-director. O a deactivator and a m-director. an activator and a m-director. NHCOCH3 catalyzes the 1,2 addition of bromine across the double bond O a deactivator and an o,p-director.Draw the product of an SN2 reaction shown below. Use wedge and dash bonds to indicate stereochemistry where appropriate. Ignore inorganic byproducts. Br Bu4NCI DMF Draw SN2 product6. Draw a mechanism for the following Sn2 reaction. H2O OH ye y앤 + H3O+
- 8. Draw the mechanism for the formation of the following compounds from the given starting materials. a) 4-2-2 CO₂H NH₂ b) -dob base b) of - dod base OCH, O OCH, O K₂CO, OCH₂ OCH₂Q10. For each of the following reactions (a-b), predict whether the substitution is more likely to occur following an Sn1 or Sn2 mechanism; explain your reasoning. Draw the products of each nucleophilic substitution paying particular attention to the stereochemistry of carbon 1. a) Br, CH3 MeOH H3C b) Br NaOH 1 DMF* H3C *N,N-dimethylformamide2. Draw a reaction mechanism to explain the following reaction. O OH i. OH (aq) LOH
- LOH NaOH `N' (S) H20 'N' ČI This nucleophilic substitution occurs with rearrangement. Draw curved arrows to show the movement of electrons in the following step of the reaction mechanism. Arrow-pushing Instructions OH :OH N. H.5. Using curved arrows please give the mechanism of this reaction, including any regioselectivity or stereoselectivity. P. HBr } DCM BrIdentify the best conditions to complete the SN2 reaction shown below. A) CH3I, THF B) CH3CH₂I, THE C) CH3CH₂CCNa, THF D) CH3CH₂CCNA, CH3OH E) KI, THF