Draw the structure and give the name of the alcohol with molecular formula CH,0 which is resistant to oxidation by acidified potassium dichromate(V1). 10
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- Draw the structure of C4H1,O if the compound: (1) reacts with Na but fails to react with a strong oxidizing agent such as K,Cr,O;; (2) gives a negative iodoform test; and (3) gives a positive Lucas test in 4 minutes. (ii) Give structures and IUPAC names of the alcohols formed from (CH3),CHCH=CH2 by: (i) dilute H,SO,; (ii) В,Нь, then H,Oz, он.An ester W with a molecular formula of C6H12O2 is optically active. When W is undergone acidic hydrolysis, compound X, C2H4O2 and an alcohol Y are formed. Alcohol Y is optically active and gives a yellow precipitate with alkaline iodine. Oxidation of Y produces Z which is optically inactive Identify compounds W, X, Y and Z. Write balanced equations for the formation of alcohol Y. Other than using alkaline iodine, suggest how you would differentiate between X and Y. State how Z reacts (if any) with, Alkaline iodine 2,4-dinitrophenylhydrazine Tollen’s reagentWrite structural formulas for all the constitutionally isomeric alcohols of molecular formula C5H12O. Assign a substitutive and a functional class name to each one, and specify whether it is a primary, secondary, or tertiary alcohol.
- Offer at least two methods for the preparation: a) ethyl bromide, b) iso-propanol.52 Draw structural formulas and write IUPAC names for the eight isomeric alcohols with the molecular formula C₂H₁₂O. 12We have covered several oxidants that use a multi-valent atom (Cr, Cl, S, or I) as theiractive species, going from a higher oxidation state before the oxidation to a lower oxidation state after oxidizing the alcohol. Draw the structure of the following atoms, beforeand after the oxidation of an alcohol to a ketone or aldehyde. How many bonds to oxygendoes each atom have before and after the oxidation?(a) the Cr in chromic acid (b) the Cl in sodium hypochlorite(c) the S in the Swern oxidation (d) the I in the DMP reagent(e) the carbinol C in the alcohol that is oxidized
- 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-PropanolArrange these compounds in order of increasing boiling point (values in C are 42, 24, 78, and 118). (a) CH3CH2OH (b) CH3OCH3 (c) CH3CH2CH3 (d) CH3COOHFor each molecular formula, draw all the possible constitutional isomers of alcohols withthat formula. Give the IUPAC name for each alcohol.(a) C3H8O (b) C4H10O (c) C3H6O (d) C3H4O
- Pure acetic acid is a viscous liquid, with high melting and boiling points (16.7 °C and 118 °C) compared to compounds of similar molecular weight. Suggest an explanation.Provide the name of the product (besides water) that is formed in the following reaction:Use the symbol (V) to indicate a positive reaction and the symbol (X) to indicate a negative reaction and a () if a test was not performed in the shaded columns. Don't forget to write the number of your unknown underneath where it says number! IDENTIFICATION OF A CARBONYL COMPOUND (GROUP I) Unknowns Number Number methyl ketone Test Aldehyde ketone DNP Fehling's Tollen's X lodoform X Therefore, unknown number is IDENTIFICATION OF ALCOHOL (GROUP II) Unknown Primary alcohol Secondary Tertiary alcohol number: alcohol Test Lucas (in ~5 mins) (immediately) Bordwell - Wellman Therefore, unknown number is > x x >