Concept explainers
(a)
Interpretation: All stereoisomers of molecular formula
Concept introduction:
(b)
Interpretation: The number of different fraction that would be obtained from the given reaction is to be predicted.
Concept introduction: Alkyl halides undergo chlorination when they are treated with
(c)
Interpretation: The optically active fractions are to be identified.
Concept introduction: Alkyl halides undergo chlorination when they are treated with
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- Citronellol ((3R)-3,7-dimethyloct-6-en-1-ol, C10H20O) is an organic fragrance found in the oil extracted from lemon grass. a) Name the two functional groups present in the molecule. b) When a few drops of bromine dissolved in hexane is added to a sample of citronellol the brown colour of the bromine rapidly disappears. i. What type of chemical reaction has occurred? ii. Draw the structure of the product formed. iii. Name the product. c) The product formed when citronellol is heated with a mixture of potassium dichromate and sulfuric acid gives a yellow/orange precipitate when shaken with Brady’s reagent (2,4-dinitrophenylhydrazine). It also shows a positive result with Fehling’s solution. i. What type of chemical reaction has occurred ? ii. What type of functional group is present in the product? d) Explain the type of stereoisomerism which may occur in citronellol.arrow_forward(a) Chromic acid oxidation of 4-tert-butyl-1,2-dimethylbenzene yielded a single compound having the molecular formula C12H14O4. What was this compound?(b) What product is expected from chromic acid oxidation of 2,3-dihydroindene?arrow_forwardA compound with formula C7H12O is treated with sodium borohydride in methanol to yield 2,2-dimethylcylopentanol. Write a reaction scheme showing the structures of the reactant, the reagents, and the product. Will the product be optically active? Explain.arrow_forward
- What is the major organic product of the following reaction? (a) (b) NaBH4 CH3CH₂OH ? (c) (d) OHarrow_forwardWhen the conjugate acid of aniline, C6H5NH3+, reacts with the acetate ion, the following reaction takes place: C6H5NH3+(aq)+CH3COO(aq)C6H5NH2(aq)+CH3COOH(aq) If Kafor C6H5NH3+ is 1.35105 and Kafor CH3COOH is 1.86105 , what is K for the reaction?arrow_forwardDraw the product and indicate the stereochemistry when the given alcohol is treated with each reagent: (a) HBr; (b) PBr3; (c) HCl; (d) SOCl2 and pyridine.arrow_forward
- Write structural formulas for all ketones with the molecular formula C6H12O and give each its IUPAC name. Which of these ketones are chiral?arrow_forwardDraw the structural formulas of the following compounds:(a) 2,3-Dimethylpentanal(b) 1,3-Dibromopropanone(c) 4-hydroxy-4-methylhexan-2-onearrow_forwardDraw the product and indicate the stereochemistry when the given alcohol is treated with each reagent: (a) HBr; (b) PBr3; (c) HCI; (d) SOCI, and pyridine.arrow_forward
- Draw a structural formula of an alkene that undergoes acid-catalyzed hydration to give each alcohol as the major product (more than one alkene may give each alcohol as the major product). (a) 3-Hexanol (b) 1-Methylcyclobutanol (c) 2-Methyl-2-butanol (d) 2-Propanolarrow_forwardMethyl isocyanate, CH3 -N= C = O, is used in the industrial synthesis of a type of pesticide and herbicide known as a carbamate. As a historical note, an industrial accident in Bhopal, India, in 1984 resulted in leakage of an unknown quantity of this chemical into the air. An estimated 200,000 people were exposed to its vapors, and over 2000 of these people died. Q.) Methyl isocyanate reacts with strong acids, such as sulfuric acid, to form a cation. Will this molecule undergo protonation more readily on its oxygen or nitrogen atom? In considering contributing structures to each hybrid, do not consider structures in which more than one atom has an incomplete octetarrow_forward(9) How many chiral centers are present in a molecule of 1,3-dimethylcyclohexane? (C) 2 (D) 3 1 (A) O (10) What is the percent composition of a mixture of (S)-(+)-2-butanol, [a] = +13.52°, and (R)-(-)-2-butanol, [a] = -13.52°, with a specific rotation [a]D = -6.76° (A) 75%R 25%S (B) 25%R 75%S (C) 50%R 50%S 67%R 33%Sarrow_forward
- Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning