write complete mechanism for allylic bromination of the 2,3-dimethyl-2-butene with N-bromosuccinimide and show all the possible...
Bromination of an alkene by N-bromosuccinimide (NBS) in the
presence of light or peroxide is a radical reaction and produces an
allylic bromide. For the following bromination of
3-methylcyclopentene, select the allylic bromides from the set at
the right that would be products of the reaction.
Question: hydration of 2,3-Dimethyl-2-butene in presence of H2SO4 or H3PO4. Draw reaction mechanism using arrows. Please indicate nucleophile, electrophile, products, show intermediate structure and name (please show which carbon carriers charges if possible), if anti/syn chemistry is involved, please indicate “anti” or “syn” at the end of the reaction equation. Please name the product. Please indicate “follow Markovnikov’s rule” or “not follow Markovnikov’s rule”. (If hydride shift is possible, please consider it and show it in your reaction)
2. Acid-catalyzed hydration of 3,3-dimethyl-1-butene produces 2,3-dimethyl-2-butanol. Show a mechanism for this reaction. 3. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation. Explain.
2. Acid-catalyzed hydration of 3,3-dimethyl-1-butene produces 2,3-dimethyl-2-butanol Show a mechanism for this reaction. 3. Acid-catalyzed hydration of 1-methylcyclohexene yields two alcohols. The major product does not undergo oxidation, while the minor product will undergo oxidation. Explain. 4. Using 2-propanol as your only source of carbon, show how you would prepare 2-methyl- 2-pentanol
2. For each of the following molecules, draw all possible mono-brominated products of an allylic bromination. (hint: Don't forget to look for resonance forms of the allylic radical initially formed.)
1. Give the complete reaction mechanism for the acid catalyzed hydration if 3,4-dimethyl-1-butene showing all intermediates and products. (10 pts).
How many of the following compounds could exhibit cis/trans isomers? i. 2,3-dichloro-2-butene ii. 2,3-dimethyl-2-butene iii. dibromoethyne iv. (CH3)2CHCH3 V. The monomer used to form: n
How many of the following compounds could exhibit cis/trans isomers? i. 2,3-dichloro-2-butene ii. 2,3-dimethyl-2-butene iii. dibromoethyne iv. (CH3),CHCH V. The monomer used to form: n Select one: O a. O O b.1 O c. 2 d. 3 e. 4 ОО 1.5
(ochem) please provide major organic product
2,3-dimethyl-2-butene
1) Write a mechanism for the bromination of acetanilide with bromine in acetic acid. Be as complete as possible and include all relevant resonance structures. Show electron flow for all steps.