Homework Answers
If we look at the structure 18, the alcoholic OH is converted to ketone by the cyclic contraction process, a pinacol pinacolone rearrangement, by which the intermediate stereochemistry uneffected. In the next step obviously the hydroxyl groups are protected by acetals, where acetal formation takes place at C2-C3 and C5-C6.
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9. In the conversion of 17 to 18 why does the acetal form between C2-C3 and...
9. In the conversion of 17 to 18 why does the acetal form between C2-C3 and...
9. In the conversion of 17 to 18 why does the acetal form
between C2-C3 and C5-C6 rather than
C4-C5 or C3-C4?
1. What are 4Å molecular sieves? (Used in synthesis of 11) (Cite
your source)
2. How was 11 purified?
3. What is the appearance of 14?
R. R. Gadikota et al. / Tetrahedron: Asymmetry 14 (2003) 737-742 739 오 Lo -. LOWOH a, b 10. 16 FO c - Lo e, f L Ho" OH TBDPSO | 01...
4. Draw the mechanism for the conversion of 11 to 12. 5. What is the side...
4. Draw the mechanism for the conversion of 11 to 12.
5. What is the side product in the conversion of 12 to 13?
What is the role of the potassium tert-butoxide in the
conversion of 16 to 6?
8. What oxidizing agent is used to convert 17 into 18?
9. In the conversion of 17 to 18 why does the acetal form
between C2-C3 and C5-C6 rather than
C4-C5 or C3-C4?
1. What are 4Å molecular sieves? (Used in...
Economic value : U(C1, C2, C3, C4, C5) =C1∙C2∙C3∙C4∙C5 As a mathematical function, does U have...
Economic value : U(C1, C2, C3, C4, C5) =C1∙C2∙C3∙C4∙C5 As a mathematical function, does U have a maximum or minimum value? What values of Ci correspond to the minimum value of U? What values of Ci correspond to the maximum value of U? Do these values of Ci make sense from an economic standpoint? Now let us connect the idea of economic utility to actual dollar values. To keep the values more manageable, we will use household income rather than...
For the Keq lab, there are many differences between solution (C1-C3) and (C4-C6). Is the following...
For the Keq lab, there are many differences between solution (C1-C3) and (C4-C6). Is the following description true for C1-C3? C4-C6? or all C1-C6? A) blue in color B) without H+ attached. C) acidic form DATA TABLE Total (BTB) max for H = (1)417. Som [BTB) in acidic form = [Hin') 2max for In = [BTB] in basic form = [In (21605. Absorbance at this a Absorbance at this 0 0.000050 M All moon 0.000050 M com 2.435 0.000035 M...
Write a C program for: One technique for dealing with deadlock is called “detect and recover.” In...
Write a C program for:
One technique for dealing with deadlock is called “detect and
recover.” In this scheme, some procedure is used
to identify when a deadlock occurs, and then another procedure
is used to deal with the blocked processes. One technique to
identify a deadlock is to maintain a resource graph that identifies
all processes, all resources, and the relationships between them
(that is, which processes exclusively own which resources, and
which processes are blocked waiting for which...
please need help with all the questions and ASAP, thank you 11. Please predict the principle...
please need help with all the questions and ASAP, thank you
11. Please predict the principle organic product of the following reactions, show stereochemistry where appropriate. Note that some reactions involve isotope-labeled compounds, in those cases the correct isotope must be used. (66') 1. LIAID 2. H,O (1) 18 1) THF (2). CH3Li + 2) HaO NaBH4 (3) CH3OD H2(excess)/Pt (4) d herd (5). - Mg Br D2O diethyl ether Br +Li (6) diethyl ether LICu(CH2CHs)2 Br (7). 1. diethyl...
C1-T C2 c3 c4 C7 CB SEX AGE cs Св FOOT LE... SHOE PR... SHOE SIZE...
C1-T C2 c3 c4 C7 CB SEX AGE cs Св FOOT LE... SHOE PR... SHOE SIZE HEIGHT 27.8 31.3 11.0 180.3 25.7 29.7 9.0 175.3 1 M 67 2 M 47 3 M 41 26.7 31.3 11.0 184.8 4 M 42 25.9 10,0 177.8 31.8 314 5 M 48 26.4 10.0 182.3 6 M 34 29.2 13.0 185.4 31.9 31.8 7 M 26 26.8 11.0 180.3 8 M 29 28.1 175.3 31.0 29.7 10.5 9.5 9 M 60 25.4 177.8...
C1-T C2 c3 c4 C7 CB SEX AGE cs Св FOOT LE... SHOE PR... SHOE SIZE...
C1-T C2 c3 c4 C7 CB SEX AGE cs Св FOOT LE... SHOE PR... SHOE SIZE HEIGHT 27.8 31.3 11.0 180.3 25.7 29.7 9.0 175.3 1 M 67 2 M 47 3 M 41 26.7 31.3 11.0 184.8 4 M 42 25.9 10,0 177.8 31.8 314 5 M 48 26.4 10.0 182.3 6 M 34 29.2 13.0 185.4 31.9 31.8 7 M 26 26.8 11.0 180.3 8 M 29 28.1 175.3 31.0 29.7 10.5 9.5 9 M 60 25.4 177.8...
help with 9-18 i am stuck and and need help with them being answered thanks! 9....
help with 9-18 i am stuck and and need help with them being
answered thanks!
9. Let's assume that A is fixed and define the economic impact as a function of r, that is I(r) = Graph 1-1 this function with A = $10,000. What are the domain and range of the economic impact function in the context of this problem? 10. Compute the derivatives l'(r) and 1"(r). Is the economic impact function increasing or decreasing on its domain? Is...
8. Why does carbon contain only 4 valence electrons when it has 6 total electrons? 9.True...
8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
9. In the conversion of 17 to 18 why does the acetal form
between C2-C3 and C5-C6 rather than
C4-C5 or C3-C4?
1. What are 4Å molecular sieves? (Used in synthesis of 11) (Cite
your source)
2. How was 11 purified?
3. What is the appearance of 14?
R. R. Gadikota et al. / Tetrahedron: Asymmetry 14 (2003) 737-742 739 오 Lo -. LOWOH a, b 10. 16 FO c - Lo e, f L Ho" OH TBDPSO | 01...
4. Draw the mechanism for the conversion of 11 to 12.
5. What is the side product in the conversion of 12 to 13?
What is the role of the potassium tert-butoxide in the
conversion of 16 to 6?
8. What oxidizing agent is used to convert 17 into 18?
9. In the conversion of 17 to 18 why does the acetal form
between C2-C3 and C5-C6 rather than
C4-C5 or C3-C4?
1. What are 4Å molecular sieves? (Used in...
For the Keq lab, there are many differences between solution (C1-C3) and (C4-C6). Is the following description true for C1-C3? C4-C6? or all C1-C6? A) blue in color B) without H+ attached. C) acidic form DATA TABLE Total (BTB) max for H = (1)417. Som [BTB) in acidic form = [Hin') 2max for In = [BTB] in basic form = [In (21605. Absorbance at this a Absorbance at this 0 0.000050 M All moon 0.000050 M com 2.435 0.000035 M...
Write a C program for:
One technique for dealing with deadlock is called “detect and
recover.” In this scheme, some procedure is used
to identify when a deadlock occurs, and then another procedure
is used to deal with the blocked processes. One technique to
identify a deadlock is to maintain a resource graph that identifies
all processes, all resources, and the relationships between them
(that is, which processes exclusively own which resources, and
which processes are blocked waiting for which...
please need help with all the questions and ASAP, thank you
11. Please predict the principle organic product of the following reactions, show stereochemistry where appropriate. Note that some reactions involve isotope-labeled compounds, in those cases the correct isotope must be used. (66') 1. LIAID 2. H,O (1) 18 1) THF (2). CH3Li + 2) HaO NaBH4 (3) CH3OD H2(excess)/Pt (4) d herd (5). - Mg Br D2O diethyl ether Br +Li (6) diethyl ether LICu(CH2CHs)2 Br (7). 1. diethyl...
C1-T C2 c3 c4 C7 CB SEX AGE cs Св FOOT LE... SHOE PR... SHOE SIZE HEIGHT 27.8 31.3 11.0 180.3 25.7 29.7 9.0 175.3 1 M 67 2 M 47 3 M 41 26.7 31.3 11.0 184.8 4 M 42 25.9 10,0 177.8 31.8 314 5 M 48 26.4 10.0 182.3 6 M 34 29.2 13.0 185.4 31.9 31.8 7 M 26 26.8 11.0 180.3 8 M 29 28.1 175.3 31.0 29.7 10.5 9.5 9 M 60 25.4 177.8...
C1-T C2 c3 c4 C7 CB SEX AGE cs Св FOOT LE... SHOE PR... SHOE SIZE HEIGHT 27.8 31.3 11.0 180.3 25.7 29.7 9.0 175.3 1 M 67 2 M 47 3 M 41 26.7 31.3 11.0 184.8 4 M 42 25.9 10,0 177.8 31.8 314 5 M 48 26.4 10.0 182.3 6 M 34 29.2 13.0 185.4 31.9 31.8 7 M 26 26.8 11.0 180.3 8 M 29 28.1 175.3 31.0 29.7 10.5 9.5 9 M 60 25.4 177.8...
help with 9-18 i am stuck and and need help with them being
answered thanks!
9. Let's assume that A is fixed and define the economic impact as a function of r, that is I(r) = Graph 1-1 this function with A = $10,000. What are the domain and range of the economic impact function in the context of this problem? 10. Compute the derivatives l'(r) and 1"(r). Is the economic impact function increasing or decreasing on its domain? Is...
8. Why does carbon contain only 4 valence electrons when it has
6 total electrons?
9.True or False. Oxygen and sulfur have the same number of
valence electrons.
10. True or False. Beryllium and magnesium have the same number
of valence electrons.
11. True or False. Sodium and magnesium have the same number of
valence electrons.
12. What is the relationship between the number of valence
electrons and the column on the periodic table?
13. How is the number of...
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