a)
Interpretation:
How to convert 1-butyne in to butanone is to be shown.
Concept introduction:
Terminal
To show:
How to convert 1-butyne in to butanone.
b)
Interpretation:
How to convert 1-butyne in to butanal is to be shown.
Concept introduction:
Terminal alkynes when hydrated using hydroboration-oxidation reaction yield an enol with OH group attached to the terminal carbon as the reaction follows anti-Markovnikov regiochemistry. The enol obtained then tautomerizes to an
To show:
How to convert 1-butyne in to butanal is to be shown.
c)
Interpretation:
How to convert ethynylbenzene in to propynylbenzene is to be shown.
Concept introduction:
Terminal alkynes are converted in to acetylides by treating with NaNH2 in liquid ammonia. The acetylides can be converted to higher alkynes by treating with
To show:
How to convert ethynylbenzene in to propynylbenzene.
d)
Interpretation:
How to convert propynylbenzene in to cis-1-propenylbenzene is to be shown.
Concept introduction:
Alkynes can be converted in to the corresponding
To show:
How to convert 1-propynylbenzene in to 1-propenylbenzene.
e)
Interpretation:
How to convert 1-butyne in to propanoic acid is to be shown.
Concept introduction:
Alkynes gets cleaved when treated with powerful oxidizing agents like KMnO4. Internal alkynes give carboxylic acids as products. Terminal alkynes give CO2 also along with a
To show:
How to convert 1-butyne in to propanoic acid.
f)
Interpretation:
How to convert 1-hexene in to 1-hexyne in two steps is to be shown.
Concept introduction:
Alkenes when treated with bromine yield a dibromo
To show:
How to convert 1-hexene in to 1-hexyne in two steps
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Chapter 9 Solutions
Organic Chemistry
- Don't used hand raitingarrow_forwardGramicidin A can adopt more than one structure; NMR spectroscopy has revealed an “end-to-end” dimer form, and x-ray crystallography has revealed an “anti-parallel double- helical” form. Briefly outline and describe an experimentalapproach/strategy to investigate WHICH configuration (“end-to-end dimer” vs “anti-paralleldouble helical”) gramicidin adopts in an actual lipid bilayer.arrow_forwardDon't used hand raitingarrow_forward
- CHEM2323 Problem 2-24 Tt O e: ל Predict the product(s) of the following acid/base reactions. Draw curved arrows to show the formation and breaking of bonds. If the bonds needed are not drawn out, you should redraw them. + BF3 (a) (b) HI + (c) OH -BF Problem 2-25 Use curved arrows and a proton (H+) to draw the protonated form of the following Lewis bases. Before starting, add all missing lone pairs. (a) (b) :0: (c) N 1 CHEM2323 PS CH02 Name:arrow_forwardCHEM2323 Problem 2-26 Tt O PS CH02 Name: Use the curved-arrow formalism to show how the electrons flow in the resonance form on the left to give the one on the right. (Draw all lone pairs first) (a) NH2 NH2 + (b) Problem 2-27 Double bonds can also act like Lewis bases, sharing their electrons with Lewis acids. Use curved arrows to show how each of the following double bonds will react with H-Cl and draw the resulting carbocation. (a) H2C=CH2 (b) (c) Problem 2-28 Identify the most electronegative element in each of the following molecules: (a) CH2FCI F Problem 2-29 (b) FCH2CH2CH2Br (c) HOCH2CH2NH2 (d) CH3OCH2Li F 0 0 Use the electronegativity table in Figure 2.3 to predict which bond in the following pairs is more polar and indicate the direction of bond polarity for each compound. (a) H3C-Cl or Cl-CI (b) H3C-H or H-CI (c) HO-CH3 or (CH3)3Si-CH3 (d) H3C-Li or Li-OHarrow_forwardDon't used hand raitingarrow_forward
- Don't used hand raitingarrow_forwardat 32.0 °C? What is the osmotic pressure (in atm) of a 1.46 M aqueous solution of urea [(NH2), CO] at 3 Round your answer to 3 significant digits.arrow_forwardReagan is doing an atomic absorption experiment that requires a set of zinc standards in the 0.4-1.6 ppm range. A 1000 ppm Zn solution was prepared by dissolving the necessary amount of solid Zn(NO3)2 in water. The standards can be prepared by diluting the 1000 ppm Zn solution. Table 1 shows one possible set of serial dilutions (stepwise dilution of a solution) that Reagan could perform to make the necessary standards. Solution A was prepared by diluting 5.00 ml of the 1000 ppm Zn standard to 50.00 ml. Solutions C-E are called "calibration standards" because they will be used to calibrate the atomic absorption spectrometer. a. Compare the solution concentrations expressed as ppm Zn and ppm Zn(NO3)2. Compare the concentrations expressed as M Zn and M Zn(NO3)2 - Which units allow easy conversion between chemical species (e.g. Zn and Zn(NO3)2)? - Which units express concentrations in numbers with easily expressed magnitudes? - Suppose you have an analyte for which you don't know the molar…arrow_forward
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning