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Which stereoisomer of 3-hexene forms (3S,4S)-4-bromo-3-hexanol and (3R,4R)-4-bromo-3-hexanol when it reacts with Br2 and H2O?
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- Draw a structural formula for the major organic product of the following reaction: CH3 CH3 ● CH3 CH3 AAVIL + Br₂ Show product stereochemistry IF the reactant alkene has both carbons of the double bond within a ring. • Do not show stereochemistry in other cases. ● If enantiomers are formed, just draw one. CH₂Cl₂ Sn [F ? ChemDoodleⓇ1-Chloro-4-isopropylcyclohexane exists as two stereoisomers: one cis and one trans. Treatment of either isomer with sodium ethoxide in ethanol gives 4-isopropylcyclohexene by an E2 reaction. CH,CH,O Na* CI CH,CH,OH 1-Chloro-4- 4-Isopropylcyclohexene isopropylcyclohexane The cis isomer undergoes E2 reaction several orders of magnitude faster than the trans isomer. How do you account for this experimental observation?explain why cis-2-chloro-1-cyclohexanol yields a cyclohexanone but the trans isomer yields cyclohexene oxide
- Two diastereomeric sets of enantiomers, A/B and C/D, exist for 3-bromo-2-butanol. When enantiomer A or B is treated with HBr, only racemic 2,3-dibromobutane is formed; no meso isomer is formed. When enantiomer C or D is treated with HBr, only meso 2,3-dibromobutane is formed; no racemic 2,3-dibromobutane is formed. Account for these observations.4. What are the products obtained from the following elimination reaction? Indicate the major product. CH3 CH,CH,ČCH, H2O 5. a) Determine the major product that is formed when the alkyl halide reacts with a hydroxide ion in an elimination reaction. CH;CH,CH,CH,CCH, Br b) For the major elimination product obtained in 5a), which stereoisomer (cis or trans) is obtained in greater yield? Draw the two isomers and provide the names of the compounds.What are the starting reactants for the following reaction? 4 X = cyclohexa-1,3-diene; Y = ethyl acrylate X = cyclopenta-1,3-diene; Y = acrylaldehyde X = cyclohexa-1,3-ene; Y = ethyl acrylate X = hexa-1,3-diene; Y = ethyl propiolate CO₂C₂H5
- What is the major product formed when 3-methyl-1-butene is treated with Hg(C2H3O2)2 in a THF/ethanol mixture followed by NaBH4 in base?Draw the product obtained when cis-2-butene is treated first with Br2 in CH2Cl2, second with NaNH2 in NH3, and then finally with Li in NH3.Kelerences Keview topic Draw a structural formula for the major product of the reaction shown. Cl2 H20 CH;CH2CH;CH=CHz • Show product stereochemistry IF the reactant alkene has both carbons of the double bond within a ring. Do not show stereochemistry in other cases. • If the reaction produces a racemic mixture, just draw one stereoisomer. 2reg 2reg M) ots 2reg pts 2req 1 pts 2req 1 pts 2reg ...1 pts ChemDoodle Previous Next> Save and Exit APR tv MacBook Air 80 DII DD F3 F4 FS F6 F7 F8 F10 F1 F12 #3 $ & + 3 4 6. 7 8 %3D dele E Y | { } P [ F G H. J K C V N M ? .. .. * C0 B
- Draw a structural formula for the major product of the reaction shown. -CH₂CH3 Br₂ H₂O • Show product stereochemistry IF the reactant alkene has both carbons of the double bond within a ring. • Do not show stereochemistry in other cases. • If the reaction produces a racemic mixture, just draw one stereoisomer.4. Draw the correct structure for each of the following compounds. Indicate stereochemistry if applicable. A) 2R-bromo-3S-pentanol B) 3-methyl-2E, 4Z-hepten-1-ol 10What alkene is needed to synthesize each 1,2-diol using [1] OsO4 followed by NaHSO3 in H2O; or [2] CH3CO3H followed by −OH in H2O?