What reagent(s) should be used to perform the following transformation most efficiently? A 1. H2Cr,O7 2) PhMgBr 3) H2O 1. PhCHO 2) HCI 3) PCC, CH2 Cl2 В 1. PhMgBr 2) H2O 3) PCC, CH2 C Cl2 PhBr E PHOH, HCI
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- H3C₂ Br H₂O a. Enantiopure (1R, 3R)-3-Methylcyclohexanol b. Achiral 1-Methylcyclohexanol C. Racemic mixture (1R, 3R)- and (1S, 3S)-3-Methylcyclohexanol d. Diastereomeric mixture of (1R, 3R)- and (1S, 3R)-3-MethycyclohexanolWhat reagents are needed to carry out the conversion shown? OH هده O 1. HNO3/H₂SO4: 2. Br2/FeBr3: 3. Fe/HCI; 4. NaNO2/HCI/< 5°C; 5. CH3OH/heat CH3CH₂CCI / AICI3: 2. HNO3/H₂SO4; 3. Fe/HCI; 4. NaNO₂/HCI/< 5°C; 5. CH3OH/heat Hic 1. HNO3/H₂SO4; 2. Fe/HCI; 3. CH₂CCI / AICI3; 4. HNO3/H₂SO4: 5. H3O*: 6. NaNO2/HCI/< 5°C; 5. H₂0/heat 1. O 1. HNO3/H₂SO4: 2. Sn/HCI; 3. NaNO2/HCI/< 5°C; 4. H₂0/heat; 6. fuming H₂SO4: 5. excess (CH3)2CHCI/AICI3; 6. H30*/heat O 1. HNO3/H2SO4: 2. NaNO2/HCI/< 5°C; 3. H₂O/heat: 6. fuming H₂SO4: 5. excess (CH3)2CHCI/AICI 3Determine the major product of the rxn O Li" -Н20 1. ? OH- heat 2. H2O a. b. C. d.
- compound or reagent. Indicate stereochemistry where approprlate 1. heat NacN 02 NH3 2) heat 2. 2) Hos q, cag) heat 3. 0 2) MCl cag) 4. 2) H20 Ht 5. Na OEt HOEE, A りLDA 2) cl DEt Na H/DMF O NaOH 2) Ht 3) A, Ht HOEt Cb/Fecy Et 07 10. (0 11. 2) H20 * LDA 12.The dehydration of 3- hydroxypropanal, CH3CH(OH)CH2CHO, givesa/an *.aldehyde alph gama-unsaturated alpha dalta-unsaturated alpha beta-unsaturated beta gama-unsaturated * In the following resonance effect CH, LLCH₂ CH₂-C-CH₂ || A.Form I is more stable than form II B.Form II is more stable than form I C.in (II) negative charge is present on electronegative oxygen. D. in (1) negative charge is present on electronegative oxygen. E. (A. and D.) F. (B. and C.) The more stable structure of (5 * cyclo octane is half-chair Ttue False 1 2 3chem 534 cha Hư OAC H please show stereochemistry H₂ COCH ? H CO₂CH3 O Ac 2. + ? hv 9 40°C 3. H₂ C 4. 0°C Catq Q-0 + [6+4] NGC ?. لك 5. [ V-CO₂CH3 + II NCCN [4+2] C6H5 6. 2 C6H5
- ]>90% e.e. TSOH (cat.), CH,Cl2 then workup racemic но mostly one diastereomer ]5:1 diastereomer mix product after these transformations >90% e.e. 2) a) NANH2, THF, -20 °C b) OHC-CH,CH3 c) workup ]racemic mostly one diastereomer 3) NaH, MegSi-CI, then workup ] 5:1 diastereomer mix product after these transformationsme following multistep synthesis of the target structure on right from the starting structure on the left choose the correct order of reagents. Ignore stereochemistry. To preview the image click here & Step 1 Step 2 Step 3 Br. 요 Step 4 Step 5 Step 1 Reagent(s) [Select] Step 2 Reagent(s) [Select] Step 3 Reagent(s) [Select] Step 4 Reagent(s) [Select] Step 5 Reagent(s) [Select]Order the following in increasing priority A. -C, -CH, -OL B. -CH3, -CH2OH, -CH2CH3 C. -C≡CH, -CH゠CH2, -CH゠O
- Drawthe MAJOR product(s) of the followingreaction. 1) ВН,-THF 2) H,0г. NaOH 3) РСС, СН,Clz 1. он 1) NaH 2) 8 3) Н,о 2. но. O,N AICI, Br 1) NaCN, DMSO 2) excess LAH 3) H20 4. 3.Chemistry 4. Draw the correct product (may be multiple competing products) and label each of them as the product of E1, E2, SN1, or SN2. Br oner Br- OTS KCN DMSO NaOH H₂O, heat H₂O CH,CH,ONa CH₂CH₂OH NaSH DMSO KOH DMSO NINH, NH₂ NH₂ please explainWhat is the best reagent for this transformation? H₂C H₂C a) (CH3CH₂CH₂)2Culi d) BrCH=CHCH3 Od H₂C H₂C -CH3 b) Ph3P-CHCH₂CH3 d) CH3CH₂CH₂OH, H* c) CH3CH₂CH₂MgBr