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- OH OH OH 1. Hg(OAc)2, H₂O 2. NaBH4, NaOH x HỌ OH + enantiomer + enantiomer + enantiomer + enantiomerPredict the product(s) for the following reaction. O ll + enantiomer I OI ||| OH O IV OH CN OH + enantiomer || 1. NaCN 2. H₂O CN "ОН + enantiomer ||| IV CN CN5. Give the stereochemical relationship between each pair of isomers. Examples are same compound (meso), constitutional isomers, enantiomers, and diastereomers. H3C CH3 HO OH lll a. Но OH H Br CH3 b. C/ H3C CI H. ICH3 CH3 с. CH3 H. CH3 d. Но. H3C OH CH2OH Ho CH2OH Br e. Br H3C f. H CH3 H3C CH3
- Determine the major product(s) of the following reaction: (En: enantiomer) Bľ2 Br, ? H,O ОН A) + En Br Br В) + En Br ОН C) + En HQ Br YOH D) + Eng. cis-3-methylpent-2-ene with BH3, H2O2, and OH CH3 H3C- CH =C -CH2-CH3 Major Product(s) of g. Stereochemistry of the product described in g. (Circle one) а. R b. S С. Е d. Z e. a mixture of E and Z f. erythro g. threo h. a racemic (50/50) mixture i. all 4 products (a set of erythro and a set of threo) j. no stereochemistryPPh3, DIAD CH20H (A) THF mitsunobu H2N sreaction NH2 excess AGOH () (Ci3H20 INS) me I N-me me
- Identify the relationship between the following structures. OH OH A. identical/same molecule | NH B. constitutional isomers OC. enantiomers OD. diastereomers NHC П W Co X А) I В || I Ш E D) IV. "ОН none of these ОН 11 ОН "О H3O* OH OH + enantiomer ||| IV H 7 OFStereochemistry: -CH3 -CH3 H3C- Br H3C Br IUPAC 313
- enantiomers, or identical H₂CC. H Br Br HC. CN b. Label the following as structural isomers, conformational isomers, diastereomers, CN HO CH₂ Br H H H hundreds of H H H H-Br Bri OH HH OH Br OH O OH ÕH Br -CH₂ HO H HO- H OH HOH₂C H H HO H 5. Provide arrows for the reaction mechanism shown below. The arrows should show 'electron flow' as we've done in class and should be consistent with the formal charges that show up on the intermediates in this multistep process All the structures with relevant atoms are provided below H H Br H O RO-OR heat or hvi H HOH H HO H O O Br H H H OH OH H LOH H Br Br Br Br HO Br CO₂H H₂N-H CH₂SH H CH₂ Supply mechanisms for the following reactions showing all intermediates, all formal charges and using arrows to show 'electron flow'. The first two mechanisms represent an 'easy' and a 'hard' exam mechanism. HS. e Br HNH₂ OH CH₂ HOH N A you only need to show initiation and propagatin steps where n hundredsRank the following groups in order of priority from highest (1) to lowest (3). < < -COO- -CH3 -NHCH3What product(s) is(are) formed in the following reaction Br/CH-Clz Br plus enantiomer H3C Et Br Br H and H3C Br H3C Et Et Br он ...Et plus enantiomer H3C Br