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- Butanal (C4H&O) has eight H atoms. Suppose that any of these H atoms can be replaced by a Cl atom to yield a molecule with the formula C4H¬CIO. (a) Identify two H atoms where this substitution would yield constitutional isomers of C4H7CIO; (b) enantiomers of C4H;CIO; (c) conformers of C4H;CIO. H. H H H нн H Butanal O=Ud) Molecular relationships; identify whether the compounds in each group are const. isomers, conformers, enantiomers, diastereomers, identical, meso or none of the above. ОН ОН H3C Br H3C LF H Br CH3 HO CI Br Br CI NH NH1 12. Identify the set of compounds that have the same functional group. (a) C2H6, C2H4, C2H2 (b) C2H2, CH3COOH, CH3CONH2 (с) СНЗСН2CНО, Н2СО, СНЗСH2CH2CH2CНO (d) CH3NH2, CH3CH2CONH2, CH3CH2CONHCH3 (e) СНЗС(О)СНз, СНЗСООН, CH:CH2CHO
- Draw structures that t each description and name the functional group in each molecule: (a) two constitutional isomers with molecular formula C5H10O that contain different functional groups; (b) two constitutional isomers with molecular formula C6H10O that contain the same functional group.6) How many isomers of C₂H₁ can you construct? Draw a dash structural representation of each structure.(b) Classify the following two pairs of structures as conformational or configurational isomers. Explain your answer. and HO, OH il. and но
- FO 23: Identify and draw conformers. NH₂ NH2 NH2 NH2 NH2 NH2 1 NH2 NH2 4 2 3 (a) List any two structures that are related as conformers. Answer by listing exactly two numbers. (b) Draw one conformer of the new structure shown here: 1 and 3 (b) OH HO OHClassify the pairs of molecules as not the same molecule, structural isomers, diastereomers, enantiomers or identical. Circle any molecules that are not achiral (a) (b) (c) Br... H CI H H Br H H3C Br H. CI Br H Br CI I I Br" "H H Br H CH3 Cr Br(a) Draw the nine isomers having the formula C7H16 . (Hint: There is one structure with a seven-carbon chain, two structures with six-carbon chains [one is illustrated in the margin above], five structures with a five-carbon chain, and one structure with a fourcarbon chain.)(b) Identify the isomers of C7H16 that are chiral.
- Cortisone is a compound that is used as an anti-inflammatory drug to treat 2) diseases like arthritis. Cortisone is a steroid which contains four rings (A, B, C and D), and has the following structure: он "OH Cortisone Provide the data to complete each of the following statements: The total number of chiral carbons (stereocentres) in Cortisone is The maximum number of stereoisomers possible is: The degree of unsaturation (IHD) of Cortisone is The total number of 2° hydrogens is The ring fusion between rings B and C is trans or cis? The absolute configuration of the carbon with * in the structure is The total number of n bonds isDetermine (A.) functional groups presents in the molecules and (B) determine the number of chiral carbons in the molecule (Exclude alkane) NH2 HO (Hint: Only six functional groups available)Draw structures that fit each description and name the functional group in each molecule: (a) two constitutional isomers with molecular formula C5H10O that contain different functional groups; (b) two constitutional isomers with molecular formula C6H10O that contain the same functional group.