Reference no: EM13132939
1. Nitroethane [CH3CH2NO2, pKa=8.6] is a much stronger acid than ethane [CH3CH3, pKa > 60]. Explain
2. Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
3. In the alkylation of cyclohexanone, better yields are obtained by first reacting cyclohexanone with an equivalent of lithium diisopropylamide in THF and then adding the alkyl halide, rather than mixing cyclohexanone, akyl halide, and a catalytic amount of sodium ethoxide in ethanol. Explain this observation by pointing out what the problems with the second reaction conditions might be and how the first set of reaction conditions help alleviate the problems.
4. Ethyl acetate can be prepared from ethanol as the only organic starting materal. Show all reagents and structures for all intermediates in this preparation.
5. Consider the compound 2-methyl-2-carboethoxycyclopentanone (structures wasn't provided)
Formulate a synthesis of 2-methyl-2-carboethoxycyclopentanone starting with acyclic precursors using a Dieckmann cyclization as a key carbon-carbon bond forming step. Show all reagents and all intermeidate structures.
6. Oxaloacetic acid is an important inetermediate in the biosynthesis of citric acid. Synthesize oxaloacetic acid using a mixed Claisen condensation as a key carbon-carbon bond forming reaction.
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Nice or complaining way
: Write a one page business letter of complaint, but ending it in a nice or complimenting way.I have never written a letter like this before and do not know what format to choose.
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Size of the bank actual reserves
: Suppose the National Bank of Commerce has excess reserves of $7,000 and outstanding checkable deposits $160,000. If the reserve ratio is 20 percent, what is the size of the bank's actual reserves?
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How to indicate if any of their choices is work-related
: Each Student is to individually complete and submit a research Paper as part of their Final Grade. The subject of this Paper is to be on a legal subject related to forensic accounting, such as money laundering, terrorist financing, tax fraud, inte..
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Calculate the length of an edge of the pbse
: Clausthalite is a mineral composed of lead selenide (PbSe). The mineral adopts a NaCl-type structure. The density of PbSe at 25C is 8.27g/cm^3.
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Write a complete stepwise mechanism for the cyclopentanone
: Write a complete stepwise mechanism for the reaction of cyclopentanone with bromine in acetic acid to give 2-bromocyclopentanone. Show all intermediate structures and all electron flow with arrows.
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Compute confidence intervals for mean of breaking strengths
: Calculate 95 percent and 99 percent confidence intervals for m. Using the 95 percent confidence interval, can we be 95 percent confident that m is at least 50 pounds? Explain.
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Provide ken with an estimate of the opportunity cost
: Provide Ken with an estimate of the opportunity cost, and explain why you do not have to consider rent or depreciation of office equipment in your estimate .
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Repaying the entire loan
: If you paid an extra $100 per month to reduce the principal due on the mortgage, how long would it take to repay half the principal due? In the case where you paid an extra $100 per month, how long would it take to repay the entire loan?
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Fourier series expansions
: Find the Fourier series expansions of f(x) = Co + C1x^2 with respect to the following two orthonormal bases on the interval [0,L] (L>0)
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