A recent article reported that benzylic bromination can be achieved photochemically usingbromotrichloromethane as the brominating agent (you used NBS in lab) as shown below. Draw themechanism of this reaction, labeling all sets as either "Initiation" or "Propagation". Also, show onefeasible termination step. Helpful BDE's are given. How many unique hydrogens (NMR) are present inthe product?BrOrg. Biomol. Chem. 2019, 17, 1384BrCCl3hvМеоOMeМеоOMeOMeОMeBDE of C-Br bond ~230 kJ/molBDE of C-H in HCClg~ 401 kJ/mol
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A recent article reported that benzylic bromination can be achieved photochemically using bromotrichloromethane as the brominating agent (you used NBS in lab) as shown below. Draw the mechanism of this reaction, labeling all sets as either "Initiation" or "Propagation". Also, show one feasible termination step. Helpful BDE's are given. How many unique hydrogens (NMR) are present in the product? Br Org. Biomol. Chem. 2019, 17, 1384 BrCCl3 hv Мео OMe Мео OMe OMe ОMe BDE of C-Br bond ~230 kJ/mol BDE of C-H in HCClg~ 401 kJ/mol
Initiation:
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hv Cсl Br Br-CCl
Propagation:
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Н Н н-с-н Н-с. Br HBr CH2 CH2Br ссь Br-CCI3 + +
Terminatio...
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CH2 CH2 На На с. CI CI CI-С -с-CI CI Сch, сь CI +
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