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- What 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 BrStarting from the wedge-and-dash structure below (sighting down the indicated bond), rotate the back carbon to provide the structure in the conformation that will be capable of an E2 elimination. R/S stereochemistry is graded. # O H3C H Drawing > CI ||||| H Atoms, Bonds and Rings Tap a node to see schoice. b. (4 pts) Assign configurations ( R or S ) to all stereocenters in the products. vs. (1 pt) Unlike NaBH4, reductions carried out with DIBAL require quantities equimolarof DIBAL and substrate. Can you explain this difference? MinOR Help wirh part B please, please show working out
- Consider the reaction below: D D Br2 The final product of this reaction has [Select] form a total of [Select] stereocenter(s), and stereoisomer(s).1. Draw all possible stereoisomers of the structures below. Indicate the isomeric relationships between all pairs of stereoisomers in each box. In each original structure, circle the stereocenters. D. E. NH2 OMeA E OH OH H This is a(n) OH R B F PCC, CH₂Cl₂ H type reaction. The major product if R = CH₂CH3 is compound The major product if R = H is compound G Look at the given reaction and use the letter code corresponding to each compound in the blank to indicate the expected product(s), or fill in the blank with the appropriate vocabulary word or phrase. If a specific stereoisomer (e.g single enantiomer) is formed, select that isomer only. If a mixture of stereoisomers (e.g. racemic or diastereomers) is formed, select the single structure that shows the appropriate mixture (e.g. lines not dashes). If we convert the reagent to Na2CrO4, H₂SO4, H₂O: The major product if R = CH₂CH3 is compound The maior product if R = H is compound ??? OH D H H though compound
- 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.5. 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 CH3R'R?CHOH-CR°R* R'R?C=CR®R* What should orientation of each substituent in reactant to convert it into product alkene? What is importance of their specific orientation?
- ce trom Cengage Learning [Review Topics] [References] Use the References to access important values if needed for this question. Draw the structure of the product that is expected when the following compound is treated with concentrated H,SO4. H2S04 CH3CH2CH2OH heat • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. ted C P. opy aste ? CH4 ChemDoodle Submit Answer Retry Entire Group 3 more group attempts remaining Previous Next Email Instructor Save and Exit Cengage Learning | Cengage Technical SupportH H ČH3 Br р. + CH;C=C: in acetone Reaction Type(s) Mechanism(s) Product(s). Stereochemistry (if applicable) q. p-chloronitrobenzene + sodium ethoxide Reaction Type(s) Mechanism(s) Product(s). Stereochemistry (if applicable)S) Draw the expected major product (except when I explicitly ask for a minor product) in each box NaOCI CH;CO,H : CH,CN : H20 1) `MgBr OH 2) H20 C10H180 C12H240 C12H240 major stereoisomer minor stereoisomer base C13H9F203 "Fiflunisal" NSAID Drug produced by Merck in 1971 NC. CN heat C10H12N2 enant #1 C1OH12N2 enant #2 show "relative stereochemistry" of the methyl groups in the product for full credit. Two enantiomers are produced, draw one in one box, the other in the other box.
