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- The main product of the reduction of 3-ethyl-2-pentanone, in the presence of LIAIH4 as catalyst, is: bv) CH–CH2CH CHI CHO CH-CH₂ cx) CH-CH₂-CH-0-CH3 1 CH₂ CH3 VALAISUU, US OH KHI CHICH, CHÍCH CHO CH-CH3 Ik) CH,CH, CH, CH, COO CHI CH(a) 2-methyl-2-pentanol Draw the structure of the alkene that was used to prepare the alcohol in highest yield. AAVIL ? ChemDoodleⓇ Which process does this employ? 1. Hg(OAc)2, H₂O; 2. NaBH4 01. BH3; 2. H₂O2, NaOH OsO4, H₂O2 On n [ ]#Which stereoisomer of 3,4-dimethyl-3-hexene forms (3S,4S)-3,4-dimethylhexane and (3R,4R)-3,4-dimethylhexane when it reacts with H2, Pd/C?
- 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-Methycyclohexanola) b) c) d) e) 1) BH3/THF 2) H₂O2 NaOH (aq) cold Cl₂, H₂O HBr CH3CH₂OOCH₂CH3 1. Hg(OAc)2, H₂O 2. NaBH4 o 1) 03 (-78 °C) 2) (CH3)S H₂ Lindlar catalyst4. What are the products obtained from the following elimination reaction? Indicate the major product. CH;CH2CCH3 H2O CI 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,CCH3 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.
- Which reaction would yield cyclopentanol? سیدگی (A) (B) -d (C) (D) 1. LiAlH4 2. H+ 1. NaBH4 2. H+ 1. BHg:THF 2. H2O2, NaOH OSO4(a) 2-methyl-2-pentanol Draw the structure of the alkene that was used to prepare the alcohol in highest yield. ? ChemDoodle Which process does this employ? 1. Hg(OAc)2, H₂O; 2. NaBH4 1. BH3; 2. H₂O2, NaOH OsO4, H₂O2 √ [FH3C OH OH CH3 1,3-pentanediol + B OMe OME OME MeO... CH3 H3C OMe benzaldehyde dimethylacetal catalytic Me 0:0 OH FO (p-TsOH) CH3CN H... MeO, OMe OMe e a & H3C CH3 H3C CH3 H3C CH3 C D A HO E HO OCH3
- 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?A E OH OH H This is a(n) OH R B F PCC, CH₂Cl₂ H type reaction. The major product if R = CH₂CH3 is compound The major product if R = H is compound G Look at the given reaction and use the letter code corresponding to each compound in the blank to indicate the expected product(s), or fill in the blank with the appropriate vocabulary word or phrase. If a specific stereoisomer (e.g single enantiomer) is formed, select that isomer only. If a mixture of stereoisomers (e.g. racemic or diastereomers) is formed, select the single structure that shows the appropriate mixture (e.g. lines not dashes). If we convert the reagent to Na2CrO4, H₂SO4, H₂O: The major product if R = CH₂CH3 is compound The maior product if R = H is compound ??? OH D H H though compoundDraw the organic products formed when cyclopentene is treated with each reagent. With some reagents, no reactionoccurs.a. H2 + Pd-Cb. H2 + Lindlar catalystc. Na, NH3d. CH3CO3He. [1] CH3CO3H; [2] H2O, HO–f. [1] OsO4 + NMO; [2] NaHSO3, H2Og. KMnO4, H2O, HO–h. [1] LiAlH4; [2] H2Oi. [1] O3; [2] CH3SCH3j. (CH3)3COOH, Ti[OCH(CH3)2]4, (–)-DETk. mCPBAl. Product in (k); then [1] LiAlH4; [2] H2O