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The following sequence of reactions was used to synthesis compound F. Compound B, which is produced in step 2, is used in the fifth step. In step 5, B is de-protonated by NaOCH3 in an acid-base reaction and reacted with D in a substitution reaction (a small amount of alkene is also formed in this reaction which should be ignored). In the first step, only one isomer, A, is formed. Compound F yielded as a pair of enantiomers.
For each of the six reactions, draw the major product (A-F) of the reaction. Show all stereoisomers of A-F which are formed. When the starting material consists of several stereoisomers, clearly indicate the stereoisomer of the product formed from each of the stereoisomers of the starting material.
Draw the accepted mechanism for each reaction and illustrate how each stereoisomer is formed in the reaction. For the reaction, which yields product B, predict the peaks in the IR and NMR spectra of the starting material and the product B. Also comment on the differences in these spectra which indicate a successful reaction yielding the product.
Which has the smallest heat of combustion and why? allenic, conjugated, or isolated structures
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what is the underlying electronic reason for all periodic trends?
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A small piece of zinc reacts with dilute HCl to form H2, which is collected over water at 16°C into a large flask. The total pressure is adjusted to barometric pressure (752 torr), and the volume is 1544 mL.
2Fe(s) + O2(g) => 2FeO(s) ?H = -544.0 kJ 4Fe(s) + 3O2(g) => 2Fe2O3(s) ?H = -1648.4 kJ Fe3O4(s) => 3Fe(s) + 2O2(g) ?H = +1118.4 kJ Given the data above, determine the heat of reaction, ?H, for the reaction below: Reaction: Fe2O3(s) + FeO(s) => Fe3O..
If the pH of such a phosphate-containing solution were gradually lowered by addition of HCl or some other strong acid, what three protonated phosphate species would be generated? (Specify the chemical formula and name of each.)
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Wine is made by adding yeast to grape juice. What concentration of glucose in grams per liter must the grape juice contain to produce wine that is 11% ethanol by volume? (take the density of ethanol to be 0.789 g/mL^-1) C6H12O6(aq)----> 2CH3CH2OH(..
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