مره Draw the molecule(s) on the canvas by choosing buttons from the Tools (for bonds and charges), Atoms, and Templates toolbars. Show the appropriate stereochemistry by choosing the dashed or wedged buttons and then clicking a bond on the canvas.

7) The structure of menthone is shown below. Can you circle the two isoprene units?

Draw all the isomers of C5H₁0. Clearly show stereochemistry if stereoisomers are possible. Step 1: Start by drawing all the isomers with double bonds. • Consider constitutional isomers, then stereoisomers. Step 2: Draw all isomers containing a ring. • Consider constitutional isomers, then stereoisomers. Consider the constitutional isomers of C5H₁0 that contain a 3-carbon ring. Do not draw stereochemistry. 10 Select C Draw H Rings More Erase

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verse osis Consider the structures of the carbocations formed by ortho attack of the electrophile, *NO₂, on the given starting material. NH2 Part: 0/2 Part 1 of 2 + Draw all resonance structures for the carbocation formed by ortho attack of the electrophile "NO, on the given starting material. If applicable, include the resonance structure in which π bond electrons "move" to the more electronegative atom as a lone pair. Be sure to include all charges and relevant lone pairs. 00 al. Ar B K

o chem - please show stereochemistry and break down each step as much as possible

The following reaction represents one of the steps in the synthesis of the bioactive substance quinine. Me 활씀 OH Draw the structure of the product of this reaction. • All hydrogen atoms are implied. Apply formal charges where appropriate. Assign lone pairs and radical electrons where appropriate. Use the wedge/hash bond tools to indicate stereochemistry where it exists. If needed, use the "starting points" menu to revert to the original molecule(s) shown.

I have the following data from an NMR scan.  Five peaks; a doublet at about 0.8ppm (6H) a small single septet at  about 1.5 ppm (1H), a triplet at 1.6 ppm (2H(, a singlet at about 2.1 ppm (3H), a triplet at about 4.4 ppm (2H).  The molecular formula is C7H14O2.  I calculated a degree of unsaturation of 1.  I have tentatively identified the compound as methyl-4-methylbutanoate.  I would appreciate any comments you care to make.  Thank you.

Which of the following is true of the mechanism of the addition of HBr to an alkene? Select one: A. HBr bonds to C=C in a concerted, SYN addition process. B. The first step is the slow attachment of H+ to the C=C group to form a carbocation. C. The mechanism is a step-wise ANTI addition of H-Br to the C=C group. D. H+ bonds to the C=C group in a first, fast step, followed by the slow attachment of a Cl- nucleophile.

Draw the organic product(s) of the following reactions, and include carbon dioxide if it is produced. KMNO4 / H3O* CH3CH2CH2-C=C-H • You do not have to consider stereochemistry. • If a compound is formed more than once, add another sketcher and draw it again. • Draw carbon dioxide in its own sketcher if it is produced. Separate multiple products using the + sign from the drop-down menu. • If no reaction occurs, draw the organic starting material.