Sol:-
NBS is mostly used for the allylic bromination, in which the substitution of hydrogen on a carbon adjacent to a double bond or aromatic ring with bromine takes place.
What product(s) would you expect from the following reaction? CH2 NBS CCl4 3
what products would you expect from the following reaction? (alkene organic reaction with NBS/ CCl4) What product(s) would you expect from the following reaction? You do not have to consider stereochemistry. If more than one structure fits the description, draw them all. Draw one structure per sketcher. Add additional sketchers using the dropdown Separate structures with + signs from the dropdown menu.
4. What product(s) would you expect from the reaction of 1,4-hexadiene with NBS? What is the structure of the most stable radical intermediate? (5 marks)
What product(s) would you expect from the following reaction? CH3 NBS, Br2 CC4, hv You do not have to consider stereochemistry If more than one structure fits the description, draw them all Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner Separate structures with + signs from the drop-down menu. P opy asle ChemDoodle Previous O
References What product(s) would you expect from the following reaction? NBS CH-CH-CH2CH-CнсHB CCI pt You do not have to consider stereochemistry .If more than one structure fits the description, draw them all. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner Separate structures with + signs from the drop-down menu. pt pt pt pt pt O00-1 pt 1 pt 1 pt ChemDoodle
2. What product would you expect from the following reaction? 2. What product would you expect from the following reaction? ÇOCH H+ CO CHE A. in ÇOCH3 B CO.CH ÇO,CHE D. CO,CHE E
3. Given what you now know, what product(s) would you expect to isolate from this reaction? Y +Na + Nao + - Br (NaOf-Bu) Specify how each of the following would affect the rate of the reaction. a. Increase the concentration of the base. b. Decreasing the concentration of alkyl halide. 3. Predict the product(s) for each of the E2 elimination reactions below. major product for each. heat Br NaOCH3 heat
3. Given what you now know, what product(s) would you expect to isolate from this reaction? • Ngô – Br (NaOt-Bu) Specify how each of the following would affect the rate of the reaction. a. Increase the concentration of the base. b. Decreasing the concentration of alkyl halide. 3. Predict the product(s) for each of the E2 elimination reactions below. Identify the major product for each. Y ahoo Br NaOCH heat
3. Given what you now know, what product(s) would you expect to isolate from this reaction? Y & NOT (NaO1-Bu) Specify how each of the following would affect the rate of the reaction. a. Increase the concentration of the base. b. Decreasing the concentration of alkyl halide.
Draw the organic product(s) you would expect from the following reaction. Draw the organic product(s) you would expect from the following reaction. You do not have to consider stereochemistry. You do not have to explicitly draw H atoms.
Draw the organic product(s) you would expect from the following reaction. Draw the organic product(s) you would expect from the following reaction. You do not have to consider stereochemistry. Draw one structure per sketcher. Add additional sketchers using the dropdown menu in the bottom right corner. Separate multiple products using the + sign from the dropdown menu.