Which of the following carbocations is likely to undergo rearrangement through a methyl shift? H3C CH3 H₂C CH3 H3C CH3 О НЗС СНЗ and H3C CH3 H3C CH3 H₂C CH3 and
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- 1-Ethoxypropane is: O CH3CH₂OCH₂CH³ Ⓒ CH³CHCH₂OCH3 O CH3CH₂CH₂CH₂CH3 O CH3CH₂CH2CH2CH₂CH3 OCH3CH₂CH₂CH₂OCH3Identify two alkenes that react with HBr to form 1-bromo-1-methylcyclohexane without undergoing a carbocation rearrangement.Which of the following carbocations would you expect to rearrange? CH3 CH3 CH3 CH3CHCHCH3 + A B C O A ОВ O CH3 CH3CCH₂CH3 D MacBook Air
- Which alkene reacts the slowest with HC1? CH3CHCH=CH2 CH3 A Н CH3 D CH3 CH3 CH3CFCH2 CH3 B CH3CH2 CH3 CH3CH2C=CH2 | CH3 с E 1 CH3 CH3Rank the carbocation compounds below from most stable to least stable.Identify ALL compounds DO NOT undergo highly favorable rearrangements a different carbocation isomer. ✔A B C D E A B C D E
- Which structure represents the most stable chair conformation of trans-1-tert-butyl-3-methylcyclohexane? O structure a O structureb O structure c O structure dLeast stable H H CH₂ CH₂ Carbocation stability Adjacent alkyl groups stabilize carbocations H H C-H H₂C- CH, CH₁ Most stable CH₂ ن6. HO3S Synthesize the following compounds starting from benzene: H3C CH3 NH2 Br SO 3H H₂C CH3 Cl CH3
- Which of the following substituted cyclohexanes is most stable?The highest energy and be not stable of the following carbocations is: O ČH2 CH3 CH3 CH3 II III IV I O IV OAll ara nExplain the fact that the C-O stretch in ethers and esters occurs at 1000-1100 cm-1 when the C is sp hybridized, but at 1250 cm- when it is sp2 hybridized.