a)
Interpretation:
The names of the
Concept introduction:
The longest carbon chain containing the double bond to be chosen. Based on the name of the parent compound - the alkene name ends with the suffix -ene. The chain is to be numbered from the end that gives the lowest number to the carbon in double bond. Substituents are to be numbered according to their positions in the chain and listed alphabetically. The position of the double bond is indicated by giving the number of the first alkene carbon before the name of the parent. The stability of alkenes can be explained using the concept of hyperconjucation or based on the bond strengths. Further a compound with more number of sp3-sp2 bonds is more stable.
To name:
The alkene given and to state which is more stable.
b)
Interpretation:
The names of the alkenes given are to be given. Among the two compounds which is more stable also is to be stated.
Concept introduction:
The longest carbon chain containing the double bond to be chosen. Based on the name of the parent compound - the alkene name ends with the suffix -ene. The chain is to be numbered from the end that gives the lowest number to the carbon in double bond. Substituents are to be numbered according to their positions in the chain and listed alphabetically. The position of the double bond is indicated by giving the number of the first alkene carbon before the name of the parent. Among cis and trans isomers, the cis isomer is less stable than the trans isomer, because of the steric strain between the two larger substituents on the same side of the double bond.
To name:
The alkene given and to state which is more stable.
c)
Interpretation:
The names of the alkenes given are to be given. Among the two compounds which is more stable also is to be stated.
Concept introduction:
The maximum number of carbons in the ring is counted. Based on the name of the parent cycloalkane - the cycloalkene is named with the suffix -ene. The cycloalkane is numbered such that the double bond is in between C1 & C2 and the first substituent has the lowest number possible. Usually the position of a double bond is not shown in the name because it is always between C1 & C2. The stability of cycloalkenes can be explained using the concept of hyper conjucation or based on the bond strengths.
To name:
The alkene given and to state which is more stable.
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Chapter 7 Solutions
EP ORGANIC CHEMISTRY,24 MONTH-OWLV2
- 7. For the following structure: ← Draw structure as is - NO BI H H Fisher projections (a) Assign R/S configuration at all chiral centers (show all work). Label the chiral centers with an asterisk (*). (b) Draw an enantiomer and diastereomer of the above structure and assign R/S configuration at all chiral centers (again, show all work). (c) On the basis of the R/S system, justify your designation of the structures as being enantiomeric or diastereomeric to the original structure.arrow_forwardDon't used Ai solutionarrow_forward1. For the following reactions, predict the major product. Show stereochemistry where appropriate. неу b) 7 HBr XV ROOR H₂504 c) N/ H20 H+2 d) ~ Pt c) f. MCPBA -> сна сла (solvent) (1)BH 3-THE (3) Надрон B177 H20 9)arrow_forward
- For the following reactions, predict the major product. Show stereochemistry where approarrow_forwardHow is Talu home quer in Org. Chemistry propose a 3-butanal prepared from ketone? complete reaction for this, (to start from the guignand Meagent. ②what pocubble products could be produced from the reaction of : CA₂ CH₂ CH₂ dil H.504 A CH3 1 OBCH₂OH Naz Cr₂ 07 12504 NazCD 4 CH3CH2 07 AzS04 H3C H3C CH3-C - C - Atz но но + H, CH3 07 > ⑦Colts C614501 + (215) 504 кон 4arrow_forwardRank the following compounds most to least acidic: a) О OH 요애 OH .OH flow flow О F F F F OH F b) Ha EN-Ha CI Ha F F CI Haarrow_forward
- a) b) Provide arrows to show the mechanisms and then predict the products of the following acid base reaction. Use pKas to determine which way the reaction will favor (Hint: the lower pka acid will want to dissociate) Дон OH Ha OH NH2 c) H H-O-Harrow_forwardMATERIALS. Differentiate between interstitial position and reticular position.arrow_forwardFor each of the following, indicate whether the arrow pushes are valid. Do we break any rules via the arrows? If not, indicate what is incorrect. Hint: Draw the product of the arrow and see if you still have a valid structure. a. b. N OH C. H N + H d. e. f. مه N COHarrow_forward
- Decide which is the most acidic proton (H) in the following compounds. Which one can be removed most easily? a) Ha Нь b) Ha Нь c) CI CI Cl Ha Ньarrow_forwardProvide all of the possible resonanse structures for the following compounds. Indicate which is the major contributor when applicable. Show your arrow pushing. a) H+ O: b) c) : N :O : : 0 d) e) Оarrow_forwardDraw e arrows between the following resonance structures: a) b) : 0: :0: c) :0: N t : 0: بار Narrow_forward
