Concept explainers
Interpretation: The enantiomer other than
Concept introduction: Hydroboration reaction is a two step reaction, which involves conversion of
Anti markovinokov’s rule states that the positive part of acid gets attached to that carbon atom in
To determine:
The enantiomer other than
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Organic Chemistry (9th Edition)
- When cyclohexene is treated with m-chloroperbenzoic acid and H,0, trans-cyclohexane-1,2-diol is produced. Propose a mechanism for this reaction, accounting for the observed stereochemistry. Hint: Recall what a МСРВА + Enantiomer H2O "OH peroxyacid does to an alkene.arrow_forwardProvide the structure of the missing products or reactants. Show the relevant stereochemistry if necessary. H3C Br H₂O _SH [4© 1 product 2 products (2 isomers) ✓ OH + ?<arrow_forwardDraw the main product (s) (and the stereochemistry, if present). Indicate the mechanism of the reaction (reason it). 1) NaOH CH3 2) CH3-CH=CH-CH2BR NaNH2 H3C-CH2-C-Br CH3 Acetona/H20 50% NH3 líquido ČH3arrow_forward
- Provide the structure of the product(s) with stereochemisty if appropriate. If multiple products indicate major product or if products are formed in equal amounts. If there is no reaction expected explain why. NaBH3CN `N then H30* work up `NH2 ВГz, NaOH, H2Cо mCPBA then heat •NMe2 Меarrow_forwardb) DRAW THE product of each of the following reactions? DRAW expected product stereochemistry, where NEEDED TO b) חוו H3C- Pd(OAc)2 Ag2CO3 dppe H OBn 1. B2H6, THF CH3 CH3 2. NaOH, H2O2 B 0arrow_forwardWhich of the following additions to alkenes occur(s) specifically in an anti fashion? I am referring to anti/syn stereochemistry in this question, not the Markovnikov-based regiochemistry. O addition of H2 O halohydrin formation O hydroboration-oxidation O dihydroxylation using OsO4arrow_forward
- Give the Major product(s) and name the starting compound with stereochemistry: H2O H2O H2SO4 H,SO, HgSO,arrow_forwardFor each reaction, decide whether substitution or elimination (or both) is possible, andpredict the products you expect. Label the major products. chlorocyclohexane + NaOCH3 in CH3OHarrow_forwardDraw the major product or products of each reaction. If the reaction is stereoselective, be certain that your structure(s) clearly indicate the correct stereochemistry. On the lines next to each reaction, indicate if the reaction likely proceeds by an Syl or Sx2 mechanism. H;C H F hexane CH;CH,Br CH; Br CH;OH e CN pentane Br CH; CH;CH, CH; H,0 C1arrow_forward
- Please predict the products for each of the following reactions. Clearly show the regiochemistry (Markovnikov vs anti-Markovnikov) and stereochemistry (syn- vs anti- or both). If a mixture of enantiomers is formed, please draw all the enantiomers. O O O A O Br₂ CH3OH A 1.03 2. DMS KMnO4, NaOH cold HI mCPBA 1. Oso4 2. H₂O2 1.03 S B 18 17 19 20 1 16 14 CH,CHOSH (peroxyacid) MCPBA Pd or Pt (catalyst) 13 12 11 2 10 3 Pd or Ni (catalyst) D₂ (deuterium) EtOH C HBr ROOR BH3 THF Фәнхолест a ada d œœœœœ H₂SO4 HCI 1. BH3-THF 2. H₂O2, NaOH Br₂ Br₂ H₂O D Darrow_forwardDraw mechanism arrows and then predict the major products and stereochemistry. Also include the labels of thermodynamic and kinetic 1-methylcyclohexene with BH3 followed later with –OH, H2O2, and H2O.arrow_forwardNCH 3 of Give appropriate reagents for this transformation. O NH2CH3 O NH(CH3)2 O NH3 / CH31 NH2CH2CH3 1. CH3MgBr H. 2. H30 What is the stereochemistry of the product of the above reaction? racemic mix O (R)-enantiomer O achiral O (S)-enantiomerarrow_forward