Concept explainers
(a)
Interpretation: The solubility of chondrocole A in water and
Concept introduction: The solubility of solute in solution depends upon the polarity of solute and solvent. The solute and solvent of same polarity are soluble with each other and insoluble if the polarity is different.
(b)
Interpretation: The stereogenic centers are to be identified and labeled as R or S.
Concept introduction: A carbon atom which is bonded to four different groups is termed as chiral center or stereogenic center. The groups around the stereogenic center are prioritized on the basis of
(c)
Interpretation: A stereoisomer and a constitution isomer of chondrocole A is to be drawn.
Concept introduction: A compound exhibits number of stereoisomers when it contains more than one stereogenic centers. The maximum number of stereoisomers a compound with
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- The cis ketone A is isomerized to a trans ketone B with aqueous NaOH. Asimilar isomerization does not occur with ketone C. (a) Draw thestructure of B using a chair cyclohexane. (b) Label the substituents in Cas cis or trans, and explain the difference in reactivity.arrow_forward(a) Draw the products of molecular formula C3H4Cl2, including stereoisomers, formed when chlorocyclopropane is heated with Cl2. (b)Assuming that compounds that have different physical properties are separable, how many fractions would be present if the mixture of products were distilled using an efficient fractional distillation? (c) How many fractions would be optically active?arrow_forwardConsider the tricyclic structure A. (a) Label each substituent on the rings as axial or equatorial. (b) Draw a skeletal structure for A, using wedges and dashes to show whether the substituents are located above or below the rings.arrow_forward
- Ans?arrow_forward4 But-2-enal, CH₂CH=CHCHO, is a pale yellow, flammable liquid with an irritating odour. (a) But-2-enal exists as two stereoisomers. Draw skeletal formulae to show the structure of the two stereoisomers of but-2-enal. (b) (i) Describe a simple chemical test that would show that but-2-enal is an aldehyde. (ii) Explain why this test gives a different result with aldehydes than it does with keton (c) But-2-enal also reacts with sodium borohydride, NaBH4. (i) Identify the organic compound formed in this reaction. (ii) State the type of chemical reaction occurring. (d) Precautions must be taken to prevent but-2-enal catching fire. Construct a balanced equation for the complete combustion of but-2-enal, C₂HO.arrow_forward(A)Menthol, used to flavor various foods and tobacco, is the most stable stereoisomer of 2-isopropyl-5-methylcyclohexanol. Draw its most stable conformation. Is the hydroxyl group cis or trans to the isopropyl group? To the methyl group? (b) Neomenthol is a stereoisomer of menthol. That is, it has the same constitution but differs in the arrangement of its atoms in space. Neomenthol is the second most stable stereoisomer of 2-isopropyl-5methylcyclohexanol; it is less stable than menthol but more stable than any other stereoisomer. Write the structure of neomenthol in its most stable conformation.arrow_forward
- Give its IUPAC name.arrow_forward5) Use compounds X, Y and Z (shown below) to answer the following questions. H. H3C" "CH3 ОН CH3 compound X compound Y compound Z a) Is compound X classified as cis, trans or neither? b) Is compound Y classified as E, Z or neither? c) Is compound Z classified as R, S or neither? d) Are compounds X and Y constitutional isomers of each other? (YES or NO) e) Are compounds Y and Z constitutional isomers of each other? (YES or NO) f) Classify compound Y as a primary, secondary or tertiary alcohol. g) Which compound(s) is(are) chiral? h) Give the IUPAC name for compound Z, omitting the absolute configuration (R or S) designation. i) In the indicated spaces below, draw stereoisomers of compounds X, Y and Z. stereoisomer of compound X stereoisomer of compound Y stereoisomer of compound Zarrow_forward11) PICK THE COMPOUND(S) WITH two stereogenic centers? H3C A Darrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning