Draw one of the two enantiomers of the major product from this reaction. Use a dash or wedge bond to indicate stereochemistry of substituents on asymmetric centers. Ignore inorganic byproducts. Br2 H2O Drawing ધ

Draw the major organic product(s) for the following reactions, including stereochemistry when appropriate

2. Explain the stereochemistry and labelling pattern in this reaction. t-Bu enantiomerically pure 180 H₂SO4 HOAC t-Bu racemic

a Draw the structure of the intermediate (I) for the reaction below. Hg(O2CCH3)2 NaBH4 Product CH;OH H3C • Use the wedge/hash bond tools to indicate stereochemistry where it exists. If the reaction produces a racemic mixture, just drawv one stereoisomer.

Complete the following: Stereochemistry, enantio-, and regioselectivity are important. CrO3, H2SO4 a) OH Bromination of an alcohol (Sn2) type EtO₂C CO₂Et b) b) d) H3CO type NH2 a) b) H3CO type a) b) OH g) type CN CI h) acetone Swern Oxidation type type CO₂H type Доно i) Me3SICI, Imidazole OSiMe3 Et3N, CH2Cl2 Br type a) Mg°, THF Br j) b); H3O+ H2SO4 (H+) MeOH OMe type type

TReview TOpics] [References Draw a structural formula for the major product of the reaction shown. CH3 CH3CHCH=CH2 Show product steréochemistry IF the reactant alkene has both carbons of the double bond within a • Do not show stereochemistry in other cases. If the reaction produces a racemic mixture, just draw one stereoisomer. C P opy aste C.

Draw the alkene that would react with the reagent given to account for the product formed. ? + HCI My 3 You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. CH3 CH₂ CHOCH3 TT CI CH3 L ▼ {n [F ? ChemDoodleⓇ

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(a) Draw all stereoisomers formed by monochlorination of the cis and trans isomers of 1,2-dimethylcyclobutane drawn below. (b) How many constitutional isomers are formed in each reaction? (c) Label any pairs of enantiomers formed.

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