Question 24 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: Na, NH3

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Question 24 Predict The Final Product Or A Mixture Of Products For The Following Synthetic Transformation Na Nh3 1 (672.52 KiB) Viewed 48 times

Question 24 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: Na, NH3 MCPBA ?. ? H two enantiomers HO НО Question 32 Predict HO" HO Mechanism D H OH HO Question 25 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: NaSH ? DMSO Br t-BUOK 1. Os04 2. H₂O2 Hofmann product H₂ two diastereomers Pd catalyst two diastereomers A B go go go 20 20 20 SH SH SH SH Question 26 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: NaSH DMSO Br SN2 t-BUOK 1. Os04 2. H₂O2 H₂ Pd catalyst two diastereomers two diastereomers A B C D ∞ ∞ ∞ ∞o Question 27 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: NaSH DMSO Br SN2 t-BuOK 1. Os04 2. H₂O₂ Hofmann product two diastereomers two diastereomers A B C D Question 28 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: NaSH DMSO Br SN2 t-BuOK ? 1. Os04 2. H₂O₂ ? Hofmann product H₂ two diastereomers two diastereomers A go но" OH OH OH HO HO" OH OH OH OH Question 29 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: NaSH DMSO Br SN2 t-BuOK ? 1. Os04 2. H₂O2 ? Hofmann product H₂ Pd catalyst two diastereomers two diastereomers A Br Br Br Br Br Question 30 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: two enantiomers 1. CH₂MgBr Br₂ 2. H₂O H₂O H-CI: B: loss ss of a leaving group :CI: CH₂ methyl migration tration (rearrangement) Mechanism C: :OH Mechanism D: : OH proton transfor A A A loss of a leaving group to H-CI: CI A CH3 loss of a leaving group - H₂O e.. A B C e CI nucleophilic attack g. two enantiomers B D Question 31 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: two enantiomers 1. CH₂MgBr Br₂ 2. H₂O H₂O ? Zaitsev product NaOEt A secondary Caloocation بی وای وای وای في علي علي nucleophilic attack B OH secondary. carbocation CH₂ OH B nucleophilic attack 1.03 2. Me₂S 1.03 2. Me₂S 1. 03 2. Me₂S nucleophilic attack nucleophilic attack tertiary carbocation در در B 1.03 2. Me₂S two enantiomers D quo Br Br Br Br OH Question 33 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: ? two enantiomers 1. CH3MgBr (excess) Br₂ 2. H₂O H₂O 1.03 2. Me₂S Zaitsev product NaOEt B two enantiomers Br D OH açam FINAL (?) product (or a mixture of products) for the following synthetic transformation: ? ? two enantiomers 1. CH₂MgBr Br₂ 2. H₂O B OH methyl migration (rearrangement) CH₂ tertiary Carbocation A O -OH OH ? Hofmann product تار کر لی لی OH A - H₂O methyl migration (rearrangement) loss of a leaving group Br H OH Br CH3 CH3 CH3 Question 34 Predict the FINAL (?) product (or a mixture of products) for the following synthetic transformation: two enantiomers 1. CH₂MgBr Br₂ 2. H₂O H₂O ? Zaitsev product ? NaOEt two enantiomers OH OH H₂O Zaitsev product NaOEt OH OH HO" OH он OH Question 35 The reaction below proceeds with the formation of four (4) products. Choose the mechanism below which best describes the following transformation. HCI $.$.$.& Mechanism A: methyl migration (rearrangement) CH₂ tertiary proton transfer carbocation resonance Pd catalyst HO & CH₂ resonance CH₂ secondary carbocation ? secondary carbocation ? Zaitsev product NaOEt Br CH3 Br loss of a leaving group -H₂O methyl migration (rearrangement) HO H₂ Pd catalyst Br₂ C OH Br₂ Br O H OH 1. 2. 1. MCPBA 2. H₂O* C C H 1. MCPBA 2. H₂O* -OH H Br₂ Br₂ MCPBA H₂O* Br₂ 1. MCPBA 2. H30* 1. MCPBA 2. H₂O* CH3 OH two enantiomers D -OH OH