Introduction to General, Organic and Biochemistry
11th Edition
ISBN: 9781285869759
Author: Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher: Cengage Learning
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Chapter 15, Problem 15.38P
Interpretation Introduction
Interpretation:
To comprehend the direction and number of helical twist on seashell.
Concept Introduction:
Seashells have helical twists either left-handed or right handed. Their directions indicate the handedness or chirality.
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15-12 Which of the following objects are chiral (assume that there is no label or other identifying mark,?
(a) Pair of scissors(b, Tennis ball(c) Paper clip(d) Beaker(e, The swirl created in water as it drains out of a sink or bathtub
Can you help me find the chiral centers?
Organic Chemistry HW:
2,6-dimethyloct-2-ene
cannot be handwritten, please type or use a program to draw
Chiral Carbons show the expanded structure of this molecule.
Determine if this molecule contains any chiral carbons. If there are chiral carbons in the molecule, circle or highlight all of them. If your molecule does not contain any chiral carbons explain why none of the carbons are chiral
Chapter 15 Solutions
Introduction to General, Organic and Biochemistry
Ch. 15.1 - Prob. 15.1PCh. 15.2 - Problem 15-2 Assign priorities to the groups in...Ch. 15.2 - Problem 15-3 Assign an R or S configuration to the...Ch. 15.3 - Problem 15-4 3-Amino-2-butanol has two...Ch. 15.3 - Prob. 15.5PCh. 15.3 - Prob. 15.6PCh. 15 - 15-7 Answer true or false. The cis and trans...Ch. 15 - 15-8 What does the term “chiral” mean? Give an...Ch. 15 - 15-9 What does the term “achiral” mean? Give an...Ch. 15 - 15-10 Define the term “stereoisomer.” Name three...
Ch. 15 - 15-11 In what way are constitutional isomers...Ch. 15 - 15-12 Which of the following objects are chiral...Ch. 15 - Prob. 15.13PCh. 15 - Prob. 15.14PCh. 15 - 15-15 Explain why the carbon of a carbonyl group...Ch. 15 - 15-16 Which of the following compounds contain...Ch. 15 - 15-17 Which of the following compounds contain...Ch. 15 - Prob. 15.18PCh. 15 - 15-19 Draw the mirror image for each molecule: OH...Ch. 15 - Prob. 15.20PCh. 15 - 15-21 Answer true or false. For a molecule with...Ch. 15 - Prob. 15.22PCh. 15 - Prob. 15.23PCh. 15 - Prob. 15.24PCh. 15 - Prob. 15.25PCh. 15 - 15-26 For centuries, Chinese herbal medicine has...Ch. 15 - Prob. 15.27PCh. 15 - Prob. 15.28PCh. 15 - Prob. 15.29PCh. 15 - 15-30 (Chemical Connections 15A) What does it mean...Ch. 15 - Prob. 15.31PCh. 15 - Prob. 15.32PCh. 15 - Prob. 15.33PCh. 15 - Prob. 15.34PCh. 15 - 15-35 Following are structural formulas for three...Ch. 15 - Prob. 15.36PCh. 15 - 15-37 Consider a cyclohexane ring substituted with...Ch. 15 - Prob. 15.38PCh. 15 - Prob. 15.39PCh. 15 - Prob. 15.40PCh. 15 - 15-41 Compound A(C5Hh, is not optically active and...Ch. 15 - Prob. 15.42PCh. 15 - 15-43 Triamcinolone acetonide, the active...Ch. 15 - 15-44 Consider the structure of the...Ch. 15 - Prob. 15.45PCh. 15 - 15-46 Consider Lunesta, a nonbenzodiazepine...Ch. 15 - Prob. 15.47P
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- 15-30 (Chemical Connections 15A) What does it mean to say that a drug is chiral? If a drug is chiral, will it be optically active? That is, will it rotate the plane of polarized light?arrow_forward15-8 What does the term “chiral” mean? Give an example of a chiral molecule.arrow_forward15-43 Triamcinolone acetonide, the active ingredient in Azmacort Inhalation Aerosol, is a steroid used to treat bronchial asthma. Triamcinolone acetonide Label the eight stereocenters in this molecule. How many stereoisomers are possible for it? (Of these, the stereoisomer with the configura tion shown here is the active ingredient in Azmacort.)arrow_forward
- 15-44 Consider the structure of the immunosuppressant FK-506, a molecule shown to disrupt calcineurin- mediated signal transduction in T-lymphocytes. What is the molecular formula of this immunosuppressant? How manj' stereocenters are present in FK-506? Determine the maximum number of stereoisomers possible. Identify and label the various functional groups present. Consider the two stereocenters in this structure labeled with asterisks (*). Determine the absolute configuration of each stereocenter. FK-506 has been shown to exhibit moderate solubility in various organic solvents. Is this immunosuppressant expected to be soluble in ethanol (CH3CH2OH)? Consider the carbon atom labeled “1." Describe the geometry and approximate bond angles about this carbon atom. Draw the alternative chair conformations of the cyclohexane ring at the lower right of FK-506 and label the more stable conformation. Are there any aromatic components present in FK-506? Patients taking FK-506 have reported several side effects from this medication, including headaches, nausea or diarrhea, and slight shaking. Would you expect the enantiomer of this drug to result in the same side effects?arrow_forwardCholesterol is one of the important components of the animal cell membrane. Label the circled chiral centers as R/S, and circle the rest of the chiral centers in this compound.arrow_forwardCan you please tell me if these molecules are chiral or not chiralarrow_forward
- The naturally occurring form of the amino acid cysteine (Problem 5-63) has the S configuration at its chirality center. On treatment with a mild oxidizing agent, two cysteines join to give cystine, a disulfide. Assuming that the chirality center is not affected by the reaction, is cystine optically active? Explain.arrow_forward15-9 What does the term “achiral” mean? Give an example of an achiral molecule.arrow_forward1. Determine the bond angle of carbon central atom labelled in red. (90, 109.5, 120, 180) 2. What are the absolute configuration of (1) and (2) chiral centers? (R or S) 3. Which functional groups is NOT found in the structure? (ether, alkyl halide, aromatic, amide, ketone)arrow_forward
- Determine if 2-methylocta-4,6-dien-1-amine contains any chiral carbons. If there are chiral carbons, circle or highlight all of them. If it does not contain any chiral carbons explain why none of the carbons are chiral.arrow_forwardDraw a 3-D structure of a molecule with a molecular formula of C4H9Cl containing one chiral center and draw its mirror image.arrow_forwardThe general formula for alkanes is CnH2n+2. What is the value of n in 3,7-dimethyldecane? How many chiral centres does this molecule have? Select one: a. n = 10; there is one chiral centre b. n = 12; there is one chiral centre c. n = 10; there are two chiral centres d. n = 12; there are three chiral centres e. n = 12; there are two chiral centresarrow_forward
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