SCAN0010 - Practice 8 — Stereochemistry For each molecule...

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Unformatted text preview: Practice 8 — Stereochemistry For each molecule below: 1) identify all stereocenters with a star. 2) Indicate if they are chiral or achiral (no asymmetric centers or meso). 3) If chiral, assign R or S to each stereocenter. a) Br \H h) n) COZH W HO CH0 H OH HO H b) \jiBr/\ I) Me 0) H pH °’ ”05' G W 1) Br SCI 0 NH OH Br ) OH d) _ , p HO HiOH H OH e) W 2 ; Me 6:) l) COZH f) Br H—‘OH W Ho—CI HO H H OH H g) COZH m) CHO r) \‘OH H OH HO——H ' Br H H——H HO I’H CHO , H—OH Me 4) Draw structures which correspond to the following names: a) (R) 2—bromobutane ‘ f) meso-1,2—dihydroxycyclohexane b) (S) 2—iodopentane g) (R) 3-bromononane 0) (ER, 38) 2-bromo-3—iodoheptane h) (S) 4-ethyldecane d) (S) 3-methylhexane i) meso -1,3-dimethylcyclohexane e) (38, SS) 5—methyl—3—octanol j) (S) 2-nitropentane (nitro = N02) 5) Draw i) an enantiomer; ii) a diastereomer, for each ofthe following if possible. a) CHZCI b) H Br Me c) H (:1) OH e) Cl f) Cl H CN H e OH ; Me OH O ’ Text Practice: 7.1, 7.2, 7.7 — 7.9, 7.11, 7.12, 7.17, 7.28, 7.30, 7.31, 7.33, 7.35, 7.38, 7.43 ...
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