Concept explainers
a)
Interpretation:
R and S configuration is to be assigned to the molecules by re-orienting the substituent.
Concept introduction:
Rule 1:
a) Higher
b) An atom node duplicated closer to the root ranks higher than one duplicated further.
Rule 2: Higher
Rule 3: Z precedes E and this precedes nonstereogenic (nst) double bonds.
Rule 4:
a) Chiral stereogenic units precede pseudoasymmetric stereogenic units and these precede nonstereogenic units (R = S > r = s > nst).
b) When two ligards have different descriptor pairs, the one with the first chosen like descriptor pairs has priority over the one with a corresponding unlike descriptor pairs.
c) r precedes s.
Rule 5: An atom or group with descriptor R has priority over its enantiomorph S.
b)
Interpretation:
R and S configuration is to be assigned to the molecules by re-orienting the substituent.
Concept introduction:
Rule 1:
a) Higher atomic number precedes lower.
b) An atom node duplicated closer to the root ranks higher than one duplicated further.
Rule 2: Higher atomic mass number precedes lower.
Rule 3: Z precedes E and this precedes nonstereogenic (nst) double bonds.
Rule 4:
a) Chiral stereogenic units precede pseudoasymmetric stereogenic units and these precede nonstereogenic units (R = S > r = s > nst).
b) When two ligards have different descriptor pairs, the one with the first chosen like descriptor pairs has priority over the one with a corresponding unlike descriptor pairs.
c) r precedes s.
Rule 5: An atom or group with descriptor R has priority over its enantiomorph S.
c)
Interpretation:
R and S configuration is to be assigned to the molecules by re-orienting the substituent.
Concept introduction:
Rule 1:
a) Higher atomic number precedes lower.
b) An atom node duplicated closer to the root ranks higher than one duplicated further.
Rule 2: Higher atomic mass number precedes lower.
Rule 3: Z precedes E and this precedes nonstereogenic (nst) double bonds.
Rule 4:
a) Chiral stereogenic units precede pseudoasymmetric stereogenic units and these precede nonstereogenic units (R = S > r = s > nst).
b) When two ligards have different descriptor pairs, the one with the first chosen like descriptor pairs has priority over the one with a corresponding unlike descriptor pairs.
c) r precedes s.
Rule 5: An atom or group with descriptor R has priority over its enantiomorph S.
Trending nowThis is a popular solution!
Chapter 5 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
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage LearningOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning
- EBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT