(a)
Interpretation: The curved arrows are to be used to show the conversion of carbocation A to carbocation B. The new
Concept introduction: Curved arrows aid in determining the movement and flow of electrons in the reaction. The electrons that take part in the
Half headed arrows are used to show the flow of single electrons, while the full headed arrow shows the movement of electron pairs.
(b)
Interpretation: The product is to be drawn by using the curved arrows.
Concept introduction: Curved arrows aid in determining the movement and flow of electrons in the reaction. The electrons that take part in the chemical reactions are shown by the curved arrows. An electronegative element in the reaction attracts electron toward it.
Half headed arrows are used to show the flow of single electrons, while the full headed arrow shows the movement of electron pairs.
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ORGANIC CHEMISTRY
- Circle the correct bolded word. a. Hydrogenation of an alkyne with palladium on carbon can / cannot be controlled to give an alkene. b. When a reaction becomes more exothermic, the transition state looks more like the substrate / product. C. Addition of two equivalents of HBr to an alkyne results in a vicinal / geminal dibromide. d. An SN2 reaction involves the collision of two alkyl halides to form a new carbon-carbon bond. True / Falsearrow_forwardDraw the major product of this reaction. Ignore inorganic byproducts. 0 1. CrO3, H₂SO4 2. Neutralizing work-up H .arrow_forward2. For the following reaction, a. Draw the 1,2-addition product b. Briefly explain why only that product is formed. HBr, 40°C 1,2 addtion product onlyarrow_forward
- ited Draw both resonance structures of the most stable carbocation intermediate in the reaction shown. od m... • You do not have to consider stereochemistry. . Do not include anionic counter-ions, e.g., I', in your answer. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom Separate resonance structures using the → symbol from the drop-down menu. ● CH4 + ? HBrarrow_forwardd 6. Draw a reaction scheme that represents all steps needed to go from the starting material to the final product. Likely more than one step will be necessary, draw each reaction with its own arrow. Draw a complete scheme of all required stepsarrow_forward1. Propose a synthetic route from the starting material to the product. Show each individual reaction step and all intermediate products. Assume acidic workups occur if needed. Starting Material Product a. b. Hint: Number the carbons in your starting material and your product. Starting Material Product a-an c. Hint: Pay attention to stereochemistry. Starting Material Product 4arrow_forward
- Draw the products of the reaction shown below. Use wedge and dash bonds to indicate stereochemistry. Ignore inorganic byproducts. 1. Os04 2. NaHSO3, H3O Select to Draw Select to Drawarrow_forwardPredict the major substitution products of the following reaction. Br. H Na OAc HOAC • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If there is more than one major product possible, draw all of them. H.C. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate multiple products using the sign from the drop-down menu. Q24 DO-Sall ⒸY 981 BEH O. IFarrow_forwardDraw the major product of the reaction sequence. Omit byproducts. Select Draw Rings More C H 1. PHCO0OH 2. EtLi, then H3O* 3. PCCarrow_forward
- 2. Но ... H-O Draw the major product of this reaction. Explain your reasoning. Br₂, H₂O EtOH 1. Me₂ BuSi-CI, imidazole 2.9-BBN-H (like BH3) 3. H₂O₂, NaOH OTMS excess HBrarrow_forwardFor the following reactions: A. Draw the missing reactant, reagent or product including the correct stereochemistry where appropriate. B. Determine the Reaction Pathway (Sn1, Sn2, E1, E2) leading to the desired product C. How many steps are in the Reaction as can be plotted on a Reaction Coordinate?arrow_forwardItem 2 Draw the organic products formed in each reaction. Consider both substitution and elimination products, if possible. Indicate the type of reaction that happened (SN1, SN2, E1, E2). Include stereochemistry and regiochemistry if relevant. For multiple products, identify which is the major and which is th]e minor product. a. b. C. d. e. H₂C 9H **** CH3 CH₂CH3 Br Br CH₂CH C6H5 Br -OC(CH3)3 OC(CH3)3 CH3CH₂OH TOH CH₂OHarrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning