Concept explainers
Interpretation:
The reason for the faster
Concept introduction:
The nucleophilic substitution reaction
The interaction between the axial groups present at the 1 and 3-carbon atom on a cyclohexane ring is known as
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GENERAL CHEMISTRY-MOD.MASTERINGCHEM.
- The energy difference between a tert-butyl group going from equatorial to axial in a cyclohexane is 18.3 kJ/mol. When two of the carbon atoms are replaced with oxygen atoms (molecule B) the energy difference between the two chair conformations drops to 5.9 kJ/mol. Explain this difference. (Hint: Consider what makes putting groups axial unfavorable).arrow_forward5.) cyclopentane Why slightly soluble in water? Why insoluble in HCl? Why completely soluble in NaOH? Why insoluble in NaHCO?arrow_forwardDraw structures for the following (a) bicyclo [3,2,0] heptane (b) spiro [4,2] heptanearrow_forward
- Given each of the IUPAC names provided, draw the corresponding structure. (a) 2-cyclopropoxypentane;(b) 1,2-dimethoxy-4-propylcyclohexane; (c) 4-(1,1-dimethylethyl)-1,2-dipropoxycyclooctanearrow_forwardThe rate law for addition of Br2Br2 to an alkene is first order in Br2Br2 and first order in the alkene. Does this information suggest that the mechanism of addition of Br2Br2 to an alkene proceeds in the same manner as for addition of HBr? Explain.arrow_forwardHO₂ H COOH COOH V POH HOT COOH cooff VI Ho HO COOH COOH VI H H COOH COOH VIIL OH OH Question: In the structures / examples abovke Identify V, VI, VII and VIII as Identical enantiomers, ciastereomes, stereo/cumers and/or structural isomers (there are 6 pairs 7 Comp eand to discover te I&T I TEN TEM TIMIN).arrow_forward
- (a) which if the structure of trans-1,2-dimethylcyclopentane? (b) which is the most stable conformation of 1-bromo-2-ethylcyclohexane? (c) which is the least stable conformation of 1-bromo-2-ethylcyclohexane? (d) which is the more stable configuration of 1,3-dimethylcyclopentane? *Et = ethylarrow_forward(d) This structure is that of an alcohol with the hydroxyl group on the third C atom of a five-carbon chain.The compound is called pentan-3-olarrow_forwardDraw the structures for each of the following molecules. (a) 2-fluorotoluene; (b) 4-ethoxytoluene; (c) 2-ethoxyanisole;(d) 1,3-diphenylheptane; (e) 4,4-diphenyl-1-octene; (f) benzylbenzenearrow_forward
- (a) All Isomers have the same molecular formulae. Explain this further. Hint what does it mean to have the same molecular formulae? (b) What is Constitutional (structural) isomerism? Hint, isomers are different, so what is different between a pair of constitutional isomers (see the chart on the last page for examples). (c) What is Conformational isomerism?arrow_forwardConsider 1-bromopropane, CH3CH2CH2Br. (a) Which of these is the lowest energy conformation?arrow_forwardOf the four possible cis,trans isomers, one is formed in over 85% yield. Q.) Which is the structure of the isomer formed in 85% yield? How do you account for its formation? Create a model to help you make this prediction.arrow_forward
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