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Using the compound bank below, indicate the keto or enol tautomer of the given compound. Write...
2. Draw Fischer projections of the open chain tautomer of each of the monosaccharides shown below,...
2. Draw Fischer projections of the open chain tautomer of each of the monosaccharides shown below, and indicate whether the compound is: i. an aldose or a ketose; ii. a D- or an L-sugar; iii. a triose, tetrose, pentose or hexose OH OH HO HO HO OH OH HO OH OH HO H OH 3. Draw Fischer projections of L-arabinose, D-fucose, and L-mannoheptulose given the structures below OH CHO CHO HOH HOH HOHH H-OH HOH H OH H OH OH...
3) Write the names of the molecules whose explicit structures are given below, according to the...
3) Write the names of the molecules whose explicit structures are given below, according to the naming system. Write the open structures of the named compounds NH он a) CH3 соон NO2 b) ON -COOH -NOZ d) e) h) f) 2-Naphthoic acid g) 2,10-dimetilantras anisole i) o-cresol j) 3-aminopyridine 4) Using all the benzene as given in the reaction below, show all the steps necessary to synthesize the target compound, o-nitroaniline. Indicate what is the appropriate reagent in each step...
Propose a feasible synthesis for the following compound. The starting material is already given, you just...
Propose a feasible synthesis for the following compound. The starting material is already given, you just need to supply the next steps using the reagent bank. Assume aqueous work-up is applied when needed. • Assume you have enough equivalence for complete transformation, so you DO NOT need to repeat the letters or indicate the # of equivalence you need. . If the reagent you need is not in the bank, write NONE. • The number of steps you need is...
Indicate if the given statements are TRUE or FALSE regarding Hell Volhard Zelinski reaction 1. The...
Indicate if the given statements are TRUE or FALSE regarding Hell Volhard Zelinski reaction 1. The reaction involves nucleophilic acyl substitution as well as alpha substitution. II. Bra facilitates the formation of the acid bromide. III. Hell Volhard Zelinski can also be done using acetic acid as the catalyst. IV. Br2 acts as the electrophile in the a-bromination step. Propose a feasible synthesis for the following compound. The starting material is already given, you just need to supply the next...
Given the following compound: O b a С HO ОН d • List ALL the acidic...
Given the following compound: O b a С HO ОН d • List ALL the acidic protons with pka values less than 25 in the space provide. there isn't any, then write NONE. DO NOT put any space in between letters ex. abc acidic protons = • Which labeled proton is the most acidic? Just write the letter in the space provided, ex. a most acidic proton = Predict the products Br LDA; 1 LDA: CH Br 2 PRODUCT BANK...
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess....
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
19 NAME For the reactions shown below, . In the dashed circles of compound 1 write a Me and an H that would yield 2...
19 NAME For the reactions shown below, . In the dashed circles of compound 1 write a Me and an H that would yield 2 h. Over under the boxed arrow, add a suitable reagent for the elimination reaction Finish the Newman Projection to show the conformation needed for the elimination react d. In the dashed circles of compound 4, write a Me and an H for the product that would form. e. Check the box to indicate that this...
(5 Marks) B. Answer the questions based on the structures given below i. ii. нонс нонс...
(5 Marks) B. Answer the questions based on the structures given below i. ii. нонс нонс OH CH HOR OH HO CHOH CH, OH CH OH HO HOM H -OH CH, OH c. Identify the compounds ii, iii and iv as D or L. Explain how you came to this conclusion (2 marks) d. Draw the Fischer projection, enantiomer and indicate which carbons are chiral or achiral for the compound ii. (3 marks) e. Among the compounds iii and iv...
[Review Topics) (References) Give an IUPAC name for the compound below. Accepted names for branched alkyl...
[Review Topics) (References) Give an IUPAC name for the compound below. Accepted names for branched alkyl groups are isopropyl, isobutyl, sec-butyl, and tert-butyl. CH2CH3 CH3CH2CH2CCH2CH3 Submit Answer Retry Entire Group 9 more group attempts remaining The two reactants shown below are combined to bring about a nucleophilic substitution reaction. Br NaOCCH, . CH3CH2CHCH 1. none h. HBr 1.H20 e. "CCH3 f. Br j. Nat 9. HOCCH3 k. "OCCH3 Which letter designates the electrophilic carbon at which substitution occurs? (If no...
ESSAY. Write your answer in the space provided or on a separate sheet of paper 131...
ESSAY. Write your answer in the space provided or on a separate sheet of paper 131 Canone predict whether a compound with a single et carbon dextro the RS assignment at this asymmetricarbon? Explain briefly levorettory based on MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question 14 A mixture of two enantiomers with a composition of 650, R has an observed rotation of -253 14 in a 100 cm polarimeter tube. If the...
2. Draw Fischer projections of the open chain tautomer of each of the monosaccharides shown below, and indicate whether the compound is: i. an aldose or a ketose; ii. a D- or an L-sugar; iii. a triose, tetrose, pentose or hexose OH OH HO HO HO OH OH HO OH OH HO H OH 3. Draw Fischer projections of L-arabinose, D-fucose, and L-mannoheptulose given the structures below OH CHO CHO HOH HOH HOHH H-OH HOH H OH H OH OH...
3) Write the names of the molecules whose explicit structures are given below, according to the naming system. Write the open structures of the named compounds NH он a) CH3 соон NO2 b) ON -COOH -NOZ d) e) h) f) 2-Naphthoic acid g) 2,10-dimetilantras anisole i) o-cresol j) 3-aminopyridine 4) Using all the benzene as given in the reaction below, show all the steps necessary to synthesize the target compound, o-nitroaniline. Indicate what is the appropriate reagent in each step...
Propose a feasible synthesis for the following compound. The starting material is already given, you just need to supply the next steps using the reagent bank. Assume aqueous work-up is applied when needed. • Assume you have enough equivalence for complete transformation, so you DO NOT need to repeat the letters or indicate the # of equivalence you need. . If the reagent you need is not in the bank, write NONE. • The number of steps you need is...
Indicate if the given statements are TRUE or FALSE regarding Hell Volhard Zelinski reaction 1. The reaction involves nucleophilic acyl substitution as well as alpha substitution. II. Bra facilitates the formation of the acid bromide. III. Hell Volhard Zelinski can also be done using acetic acid as the catalyst. IV. Br2 acts as the electrophile in the a-bromination step. Propose a feasible synthesis for the following compound. The starting material is already given, you just need to supply the next...
Given the following compound: O b a С HO ОН d • List ALL the acidic protons with pka values less than 25 in the space provide. there isn't any, then write NONE. DO NOT put any space in between letters ex. abc acidic protons = • Which labeled proton is the most acidic? Just write the letter in the space provided, ex. a most acidic proton = Predict the products Br LDA; 1 LDA: CH Br 2 PRODUCT BANK...
Determine the enantiomeric excess (1) and indicate which configuration (2), S or R, is in excess. If R-3-bromo-2- methylhexane is -80 degrees, would a polarimetry reading of the mixture in this problem rotate light (3) clockwise (CW) or counterclockwise (CC) (8) Br Br 15% 85% (this question is worth 9 points, not 8 as stated in the picture) 1. determine enantiomeric excess (your answer should be a number) 2. determine whether excess is S or R. 3. Does the mixture...
19 NAME For the reactions shown below, . In the dashed circles of compound 1 write a Me and an H that would yield 2 h. Over under the boxed arrow, add a suitable reagent for the elimination reaction Finish the Newman Projection to show the conformation needed for the elimination react d. In the dashed circles of compound 4, write a Me and an H for the product that would form. e. Check the box to indicate that this...
(5 Marks) B. Answer the questions based on the structures given below i. ii. нонс нонс OH CH HOR OH HO CHOH CH, OH CH OH HO HOM H -OH CH, OH c. Identify the compounds ii, iii and iv as D or L. Explain how you came to this conclusion (2 marks) d. Draw the Fischer projection, enantiomer and indicate which carbons are chiral or achiral for the compound ii. (3 marks) e. Among the compounds iii and iv...
[Review Topics) (References) Give an IUPAC name for the compound below. Accepted names for branched alkyl groups are isopropyl, isobutyl, sec-butyl, and tert-butyl. CH2CH3 CH3CH2CH2CCH2CH3 Submit Answer Retry Entire Group 9 more group attempts remaining The two reactants shown below are combined to bring about a nucleophilic substitution reaction. Br NaOCCH, . CH3CH2CHCH 1. none h. HBr 1.H20 e. "CCH3 f. Br j. Nat 9. HOCCH3 k. "OCCH3 Which letter designates the electrophilic carbon at which substitution occurs? (If no...
ESSAY. Write your answer in the space provided or on a separate sheet of paper 131 Canone predict whether a compound with a single et carbon dextro the RS assignment at this asymmetricarbon? Explain briefly levorettory based on MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answer the question 14 A mixture of two enantiomers with a composition of 650, R has an observed rotation of -253 14 in a 100 cm polarimeter tube. If the...
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