
OsO4 is a selective syn digydroxylation reagent
Ozonolysis of Alkene gives carbonyl compounds
Br2/H2O gives bromohydrin by Electrophilic Addition
Addition of HBr by Markonikoff addition
Elimination with bulky base like potassium tertiary butoxide gives less substitited alkene.
8. It is an example for iodolactonization.
6. (20) Fill in the missing reagents to accomplish these conversions (>1 step may be needed): 7, (10) Give the a...
Please explain in full detail.
6. (20) Fill in the missing reagents to accomplish these conversions >1 step may be needed):
7, (10) Give the alkyl halide which would give only the alkene shown by way of an E2 elimination (one alkyl halide for each alkene):
Please explain in full detail.
7.(10) Give the alkyl halide which would give only the alkene shown by way of an E2 elimination (one alkyl halide for each alkene):
Please explain in full detail.
8. (10 - extra credit) (a) (6) Propose la 2-4 step mechanism to explain this conversion. OH (b) (4) Draw a reasonable reaction coordinate diagram for this process.
6 2-Bromopentane is a reasonable starting material for the following reaction A. True B. False 7. Which alkyl halide(s) would give the following alkene as the only product in an elimination reaction? D. A and B E None of the choices is correct 4 C.C D.D E. E 8. What is the most likely mechanism of this reaction? CH2CH=CH2 CH(CH3)2 CH3CH2CH Br (CH2CH- A. Sul B. Sx2 C. EI D. E2 E. None of the choices is correct.
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6) Fill in the missing reagents and intermediate products for the following two step, EAS reaction. (6 pts) SO, 7) Draw the two neutral starting materials needed to generate the products via an S2 reaction. A base may be needed to complete the reaction, but it does not need to be included. More than one option may exist, but only draw ONE pair of molecules. (6 pts each) b) 8) Fill in the starting materials in this...
6. Fill in the missing reagents for the following reactions. If more than one step is necessary, indicate according Br (racemic) OH (racemic) Br (racemic) 7. Synthesize the following molecules by providing the correct substrates and/or reagents. Br Br Br
Fill in the missing reagents that would give the target molecules. These transformations will require more than one step. It may help to show the intermediates after each individual step so you can receive as much partial credit as you can. [22 points] a) CH H 4-oxopentanal b) НО. Br u c) СН3 CHZ
(10 pts) Fill in the missing intermediates (two), final product, and reagents (two) in the llowing multistep synthesis. Br X OH -- NH 에 CH,Br 6) (5 pts) Write out the 3-step arrow pushing mechanism showing how cyclopentanol is dehydrated to make cyclopentene: он conc. H,SO + HO heat
10% Multi Step Reactions 6) Show how you would accomplish the following synthesis in good yields. You may use any reagents that you wish. Hint: Protect 2 different functional groups if you choose to use a Grignard's reagent. :OH : OH но
10% Multi Step Reactions 6) Show how you would accomplish the following synthesis in good yields. You may use any reagents that you wish. Hint: Protect 2 different functional groups if you choose to use a Grignard's reagent....