Now, let's examine the 13C NMR of 3-bromopentane: Br 13C NMR of 3-bromopentane 20 60 40 0 100 80 120 200 180 140 160 ppm COS-09-303 دیا 93 Question 5: How many peaks are shown? Why is this number not the same as the number of carbons in the structure?

Question: Consider the E2 elimination of 3-bromopentane with hydroxide. CH3 1111H 3 product + Br + H2O 1 HII! CH3CH2 H 2 Given this conformation, determine the mechanistic steps to form the unknown product, then draw the product.

Question: For the reaction of 3-bromopentane with NaOH draw the two products and label major and minor products. Is this reaction stereoselective or stereospecific? Pls explain with very clear diagrams. For the reaction of 2-bromopentane with potassium tert-butoxide draw the major products. Is this reaction stereoselective or stereospecific?

Question: Consider the E2 elimination of 3‑bromopentane with hydroxide. The starting material consists of a chiral carbon with an in plane bond to bromine pointing to the upper left, an in plane bond to ethyl pointing to the right, a wedged bond to ethyl pointing to the lower left and a dashed bond to hydrogen pointing to the lower left.

3-Bromopentane is treated with sodium methoxide (CH3O) in methanol at 323 K. Identify the major product of the reaction. Be sure to consider the stereochemistry of the reaction. CH OH 323 K Br View Available Hint(s) HiC CH, hCH2C-C-CH2CH3 OCHs HiC ? ?

Consider the E2 elimination of 3-bromopentane with hydroxide. .. :0-H CH3 H product +Br + H2O HU CH3CH2 н Complete the curved arrow electron-pushing mechanism and draw the structure of the organic product formed. Draw the organic product. Use three curved arrows to show the conversion to the product.

Question: For the Sn1 reaction of 3-bromopentane and iodide (l'), draw the correct organic intermediate and the unrearranged organic product. Include all necessary lone pairs. Do not draw any inorganic byproducts or intermediates. Do not draw any curved arrows. HC сн.

12. For the reaction of 3-bromopentane with NaOH draw the two products and label major and minor products. Is this reaction stereoselective or stereospecific? 13. For the reaction of 2-bromopentane with potassium tert-butoxide draw the major products. Is this reaction stereoselective or stereospecific? 14. For the following molecule draw the E2 ...

Question: Consider the E2 elimination of 3-bromopentane with hydroxide. :0–H :Br CH3 product + Br + H2O 111111H CH3CH2 Н Complete the curved arrow electron-pushing mechanism and draw the structure of the organic product formed. Draw the organic product. Use three curved arrows to show the conversion to the product. H H x H H H

a) 3-Bromopentane acts as an acid in this reaction. b) The hydroxide ion acts as an acid in this reaction. c) A byproduct of this reaction is Br 2. d) Br − anions are produced in thisreaction. e) One mole of 3-bromopentane reacts with two moles …