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4. (18pts) Consider the bond-line structure below. (a) How many stereoisomers are predicted for this compound?...
A) how many stereoisomers are possible for this compound? Show how this can be easily determined...
A) how many stereoisomers are possible for this compound? Show
how this can be easily determined mathematically
B) draw all stereoisomers for this compound. Use dashes and
wedges appropriately at each stereo center. DO NOT SHOW HYDROGEN
ATOMS @ EACH STEREOCENTER
C) Identify and label each pair of stereoisomers drawn in part
B (above) as either enantiomers or diastereomers
D) identify and label each pair(s) of stereoisomers that would
be optically inactive as 50/50 mixture in a polarimeter and explain...
4. (24pts) Consider the structure below then answers part (a)-(d) in the space below. (Point total...
4. (24pts) Consider the structure below then answers part (a)-(d) in the space below. (Point total for this question is max one can earn if all answers or responses below are complete and valid.) Br Y Br OH 0 (a) How many stereoisomers are possible for this compound? Show how this can be easily determined mathematically. (b) Draw all stereoisomers possible for this compound. Use dashes and wedges appropriately at each stereocenter. Do not show the hydrogen atoms at each...
4. (24pts) Consider the structure below then answers part (a)-(d) in the space below. (Point total...
4. (24pts) Consider the structure below then answers part (a)-(d) in the space below. (Point total for this question is max one can earn if all answers or responses below are complete and valid.) Br OH Y Br o (a) How many stereoisomers are possible for this compound? Show how this can be easily determined mathematically. (b) Draw all stereoisomers possible for this compound. Use dashes and wedges appropriately at each stereocenter. Do not show the hydrogen atoms at each...
2) a) Consider 2-bromo-3-chlorobutane. How many stereoisomers are possible for this compound? Draw all stereoisomers, label...
2) a) Consider 2-bromo-3-chlorobutane. How many stereoisomers are possible for this compound? Draw all stereoisomers, label each stereocenter with the appropriate R/S designation to show handedness, and indicate the relationship (enantiomers or diastereomers) between every possible pairing of compounds. Name each compound according to IUPAC nomenclature, using appropriate R/S designation to show handedness. b) Repeat this exercise for 2,3-Butanediol. What is different about this compound relative to the first example? What word describes the unique stereoisomer? c) Which of the...
Which of the following structures is most stable? 2) How many stereoisomers does the molecule below...
Which of the following structures is most stable? 2) How many stereoisomers does the molecule below have? (СН), С+ снен снаси сна OH CH₃ br. a) 3 6) 4 c) 6 d) 8 e 9 3) Which of the following molecules below are chiral? 0) to A Boh A MOH HOS DBr e) 1, 2 and 3 a) Only 1 b) 1 and 3 c) 2 and 3 d) 1 and 3 What is the relationship between the following two...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that are not mirror images can exist; these are called diastereoisomers. Within this general class, there are special types of stereoisomers that are always optically inactive and are called meso forms. Construct a model with four different colored balls about a carbon center. Construct another identical to the first and verify this by the superimposition test. Now remove the same colored balls, blue (C from...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which class of isomers each pair of s represent. Your choices are: (i) constitutional, (ii) conformational, (iii) omers, (iv) diastereomer or (v) identical (non-isomers). Only one label for each pair should be used. For each case show work (drawings, (R)/(S), rotation of bonds, chair- "ps, etc) which led you to each answer for the pairs below. Any differences of answers between you and your peers...
Discussion Questions: 1. a) Carefully draw a three-dimensional structure of each stereoisomer of stilbene dibromide. Do...
Discussion Questions: 1. a) Carefully draw a three-dimensional structure of each stereoisomer of stilbene dibromide. Do not include any identical structures. b) Identify the enantiomeric pair, and identify one pair of structures that are diastereomers. 2. Give careful stereo-drawings representing the complete mechanism for the reaction of cis-stilbene with bromine. Remember to show the two different modes of anti-attack that are possible, depending on whether you add the bromine from above to the left-hand or the right-hand carbon of the...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
Pleqsw help with this question 3. (a) Consider the bond-line (dash/wedge) structure shown below. Using the...
Pleqsw help with this question
3. (a) Consider the bond-line (dash/wedge) structure shown below. Using the Newman projection templates provided to the right of this bond-line structure, draw the overall lowest energy (most stable) and overall highest energy (least stable) conformation possible in Newman projection form sighting down the C C, bond indicated. Provide a one sentence explanation to justify for the overall most stable conformation. (Ipts each correct Newman, 2pts for valid explanation) sight down Cy-- - bond .23...
A) how many stereoisomers are possible for this compound? Show
how this can be easily determined mathematically
B) draw all stereoisomers for this compound. Use dashes and
wedges appropriately at each stereo center. DO NOT SHOW HYDROGEN
ATOMS @ EACH STEREOCENTER
C) Identify and label each pair of stereoisomers drawn in part
B (above) as either enantiomers or diastereomers
D) identify and label each pair(s) of stereoisomers that would
be optically inactive as 50/50 mixture in a polarimeter and explain...
4. (24pts) Consider the structure below then answers part (a)-(d) in the space below. (Point total for this question is max one can earn if all answers or responses below are complete and valid.) Br Y Br OH 0 (a) How many stereoisomers are possible for this compound? Show how this can be easily determined mathematically. (b) Draw all stereoisomers possible for this compound. Use dashes and wedges appropriately at each stereocenter. Do not show the hydrogen atoms at each...
4. (24pts) Consider the structure below then answers part (a)-(d) in the space below. (Point total for this question is max one can earn if all answers or responses below are complete and valid.) Br OH Y Br o (a) How many stereoisomers are possible for this compound? Show how this can be easily determined mathematically. (b) Draw all stereoisomers possible for this compound. Use dashes and wedges appropriately at each stereocenter. Do not show the hydrogen atoms at each...
2) a) Consider 2-bromo-3-chlorobutane. How many stereoisomers are possible for this compound? Draw all stereoisomers, label each stereocenter with the appropriate R/S designation to show handedness, and indicate the relationship (enantiomers or diastereomers) between every possible pairing of compounds. Name each compound according to IUPAC nomenclature, using appropriate R/S designation to show handedness. b) Repeat this exercise for 2,3-Butanediol. What is different about this compound relative to the first example? What word describes the unique stereoisomer? c) Which of the...
Which of the following structures is most stable? 2) How many stereoisomers does the molecule below have? (СН), С+ снен снаси сна OH CH₃ br. a) 3 6) 4 c) 6 d) 8 e 9 3) Which of the following molecules below are chiral? 0) to A Boh A MOH HOS DBr e) 1, 2 and 3 a) Only 1 b) 1 and 3 c) 2 and 3 d) 1 and 3 What is the relationship between the following two...
3. Diastereomers and Meso Forms. When a molecule has two or more stereogenic centers, stereoisomers that are not mirror images can exist; these are called diastereoisomers. Within this general class, there are special types of stereoisomers that are always optically inactive and are called meso forms. Construct a model with four different colored balls about a carbon center. Construct another identical to the first and verify this by the superimposition test. Now remove the same colored balls, blue (C from...
Analyze each pair of compounds structures represent. Your cho cach pair of compounds below. Identify which class of isomers each pair of s represent. Your choices are: (i) constitutional, (ii) conformational, (iii) omers, (iv) diastereomer or (v) identical (non-isomers). Only one label for each pair should be used. For each case show work (drawings, (R)/(S), rotation of bonds, chair- "ps, etc) which led you to each answer for the pairs below. Any differences of answers between you and your peers...
Discussion Questions: 1. a) Carefully draw a three-dimensional structure of each stereoisomer of stilbene dibromide. Do not include any identical structures. b) Identify the enantiomeric pair, and identify one pair of structures that are diastereomers. 2. Give careful stereo-drawings representing the complete mechanism for the reaction of cis-stilbene with bromine. Remember to show the two different modes of anti-attack that are possible, depending on whether you add the bromine from above to the left-hand or the right-hand carbon of the...
4. Absolute Configuration and R/S Sequence Rules. In 3 you constructed models with two stereocenters that represented 4 stereoisomers. 2,3-Dibromobutanoic acid exemplifies such a compound, Make models for the isomers of this compound. a. Draw solid/dashed-wedge structures for the 4 possible stereoisomers and label the enantiomers and diastereomers. b. Specify the sequence priority for the substituents on carbon-2 and carbon-3. Label each structure with the proper R/S notation in the drawings above, for example (2R, 35). d. Draw Newman projections...
Pleqsw help with this question
3. (a) Consider the bond-line (dash/wedge) structure shown below. Using the Newman projection templates provided to the right of this bond-line structure, draw the overall lowest energy (most stable) and overall highest energy (least stable) conformation possible in Newman projection form sighting down the C C, bond indicated. Provide a one sentence explanation to justify for the overall most stable conformation. (Ipts each correct Newman, 2pts for valid explanation) sight down Cy-- - bond .23...
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