The rate constants for the bromination of several disubstituted stilbenes are given in the table below...
Please help me to find the answer Challenge Problem 08.94 9-Borabicyclo[3.3.1]nonane (9-BBN) is a reagent commonly used in the hydroboration of alkynes, but it can also be employed in reactions with alkenes. The following table provides the relative rates of hydroboration (using 9-BBN) for a variety of alkenes (J. Am. Chem. Soc. 1989, 111, 1414-1418) : Relative Reactivity Alkenes CH—CHОBU, 1 CH2 CHBu, 2 CH2-CHCH2OMe, 3 CH CHOAC, 4 CH2 CHCH2OAC, 5 сH—CHCH,CN, 6 CH2 CHCH2C, 7 cis-2-Butene, 8 tans-CH,CH,CHСHC,...
5. All electron-donating groups are activating groups and all are ortho-para directors with the exception of substituents, all electron-withdrawing groups are deactivating groups and all are meta directors. A. hydroxyl B. amino C. halogens D. alkoxyl 6. Hydrogen abstraction from the methyl group of methylbenzene (toluene) produces a radical called the radical. A. allylic B. free C. halogen D. benzyllic 7. The stability of benzyllic radicals can be explained by theory. A. resonance B. bond order C. inductive D. molecular...
Activating/Deactivating Substituents Below is a list of different substituents and experimental results from attempted electrophilic aromatic substitution. PhNR, PHCN PhCHO PhF PhMe PhoMe PhNH Deactivating Activating PhNO, PhSozH Phl PhH PNHAC POH • Is the aromatic ring an [ electrophile / nucleophile ] in these reactions? Which substituents 'activate the ring (i.e. make it more reactive? 0 Alkyl substituents: Activate OR Deactivate o Halide substituents: Activate OR Deactivate o OH, NH substituents: Activate OR Deactivate o carbonyl groups: Activate OR...
1. please check what is wrong. Thank you! Determine the product formed when each compound is treated with Br2 and FeBr3. Drag the atom labels to their appropriate positions. CN Atom labels H H Br Br2 A. FeBr Br H OH OH Br Br. Br2 FeBr3 H H Br Br H Br2 FeBr H1 H Reset T Rank the compounds in each group in order of decreasing reactivity in electrophilic aromatic substitution. CI Decreasing reactivity Rank the compounds in each...
please help in all sections asap!! Which type of electron is the highest in energy? An electron in an anti-bonding molecular orbital. An electron in a bonding molecular orbital. An electron in an atomic orbital. O A non-bonding electron. Choose a systematic name for the following compound. 1,4 dimethyl ethyl benzene 1,4 diethyl methyl benzene 1,4-diisopropylbenzene 1,4 dipropylbenzene Answer the following questions. -OR Would you expect the above compound to be aromatic? Yes No Choose the correct explanations for the...
Please complete for Tuesday, we will go through the questions and mark them in class. pg 156 - 4.23, 4.24, 4.26 pg 170 - 4.29, 4.31, pg 171-4.36 pg 175 - 4.59 pg 176- 4.74, 4.75, 4.80 pg 177-4.81, 4.82 pg 188- 5.1, 5.4, 5.5, 5.6, 5.11 - Using Table 5.1 pg 198-5.22, 5.25 pg 203 - 5.29 pg 206 - 5.37 pg 209 - 5.39 pg 2.14 5.61 pg 235-6.11, 6.14, 6.16 156 CHAPTER 4 Introduction to Organic Compounds...