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- Consider the following reaction. CH3CH₂CH=CHCOH HCI CH3CH₂CH CHCOH c₁ CH3CH₂CH- H O CHCOH H CI this product is not observed Account for the fact that this reaction yields only a single product by drawing the carbocation intermediate leading to the observed product.Draw the product formed from cyclohex-2-enone in each of three reactions. Reaction 1 Reaction 2 Reaction 1 1. NaCN 1. (CH3)2CuLi Reaction 2 product product 2. H3O*, H20 2. CH3CH21 A 1. EtO,CCH,CO¿Et NaOEt, HOET 2. Hао", Н-0, д Reaction 3 Reaction 3 productDraw the structure of the product of step 1) and the product of step 2
- Major product for these?Draw the product formed from cyclohex-2-enone in each of three reactions. Reaction 1 Reaction 2 Reaction 1 1. NaCN 1. (CH3)2CULI Reaction 2 product product 2. H30*, H2O 2. CH3CH2I 1. EtO,CCH2CO½ET NaOEt, HOET 2. Hао", Н-о, д Reaction 3 Reaction 3 productThe reaction of methylpropene with HBr in ether gives one of the two products below as the major product. Br HBr Br ether Product A Product B Product would have a higher energy transition state for the formation of the intermediate leading to it. O A O B O Both products would have the same transition state.
- Be sure to answer all parts. Part 1: What other alkene is also formed along with Y in the below reaction? H20 Y major product view structure Part 2 out of 2 What minor product would form from X if no carbocation rearrangement occurred? draw structure . Next partWhich reagents best lead to this transformation? A B C 1. SO3, H₂SO4 2. CH3CH₂CI, AICI 3 1.CH3CH₂CI, AICI 3 2. SO3, H₂SO4 1. CH3COCI, AICI3 2. Zn, HCI 3. SO3, H₂SO4 1. CH3COCI, AICI3 2. SO3, H₂SO4 3. Zn, HCI -50- CH3COCI= CH₂COCI= i l SO3H2. Draw the carbocation intermediates (if any exist) and the products for each reaction. Include any intermediates and products arising from carbocation rearrangements. Be sure to include stereochemistry!!! 1. ВНз 2. Н2О2, NaOн H2SO4 H20 Br2 HO. H2SO4 HOʻ
- XIV. Identify the reagents a and b in the following scheme. a Br b4. Both the Markovnikov and anti-Markovnikov hydration of alkynes proceed through an enol intermediate (1 and 2, respectively). Provide a mechanism for the conversion of each enol to its corresponding final product. H₂SO4, H₂O HgSO4 1. Sia₂BH 2. H₂O₂, NaOH [Y] 2 NaOH OH [۴] H₂O+ LThe following reaction can potentially produce three different cyclized products. 1. NaOMe, MeOH MeO cyclization products 2. acidic workup Provide the structures of the three cyclization products. Label the products as A, B, and C. Circle the major product. Five and six membered rings form preferentially over smaller and larger rings.