Q: 160 °C + 24h
A:
Q: Consider the structure (6R,7S)-6,7-dimethyl-1,2,3,4,6,7-hexahydronaphthalene of…
A:
Q: 10. Identify the mode of ring closure for the given electrocyclic reaction. Also, identify if the…
A: The rotation of bond during electrocyclic ring opening or ring closing reaction may be two types…
Q: what product would you expect from photochemical cyclization of (2E,4z,6z)-2,4,6-octatriene with…
A: see below
Q: Using FMO theory, determine whether a carbanion rearrangement, analogous to the 1,2-hydride shift in…
A: In case of a carbocation rearrangement due to a hydride shift, the hydride (H atom) shifts to the…
Q: Doxaprost, an orally active bronchodilator patterned after the natural prostaglandins , is…
A: Isomers are compound having same molecular formula but differ structural formula . It can be of 2…
Q: How many Stereoisomers are possible for 9,10- dibromoexadecanoic acid? (b) Addition of bromine to…
A: Following is the structure of 9,10-dibromohexadecanoic acid.
Q: is the standard free energy change for the ionization of ethanolamine, if its kb is
A: Given, Kb = 3.20 ×10-5 Relationship between Kb and □G° □G° = - RT × ln(Kb)
Q: Show that the [6 + 2] cyclization of hexa-1,3,5-triene with maleic anhydride is thermally forbidden…
A: According to Frontier molecular orbital theory, the interaction between lower unoccupied orbitals…
Q: Each carbocation is capable of rearranging to a more stable carbocation. Limiting yourself to a…
A:
Q: a. Identify the mode of ring closure for the following electrocyclic reactions.b. Are the indicated…
A: A pericyclic rearrangement that results in the conversion of a pi-bond to a sigma bond or vice-versa…
Q: Bromination of 1,5-cyclooctadiene with N-bromosuccinimide (NBS) gives a mixture of two…
A: The reagent NBS (N-bromosuccinimide) is used for the allylic bromination. Here, the allylic…
Q: Show how to distinguish between 1,3-cyclohecadiene and 1,4- cyclohexadiene by ultraviolet…
A: 1,3-cyclohexadiene is a conjugated system whereas 1,4- cyclohexadiene is a non-conjugated system.
Q: This is an example of a [1,3] sigmatropic rearrangement. Can someone explain how this is 1,3 (number…
A:
Q: Look up the stereoselectivity model for this reaction and demonstrate how it is used to predict…
A: Ingredients in AD-mix-β and their functions Potassium osmate K2OsO2(OH)4 as the source of Osmium…
Q: Compound with molecular formula C5H10 has cis-stereochemistry. Identify its structure.
A:
Q: with the help of symmetry properties of molecular orbitals of cyclohexadiene ,show why its…
A: For the electrocyclic ring opening of cyclohexadiene to form hexatriene under thermal condition…
Q: 7. Compound (2E4Z,6Z,8E)-2,4,6,8-decatetraene has been cyclized to give 7,8-dimethyl- 1,3,…
A: Given is ring closure reaction.
Q: trans-Cyclooctene has been resolved, and its enantiomers are stable at room temperature.…
A:
Q: Draw a Newman projection for the conformation adopted by 2-bromo-2,4,4-trimethylpentane in a…
A:
Q: (c) How can you distinguish between the members of each of the following pairs by UV-spectroscopy?…
A: To distinguish between the members of each of the following pairs by UV-spectroscopy:
Q: When 2,2-dimethylbutane is subjected to free-radical chlorination, ——— distant monochlorinated…
A: The structure of 2,2-dimethylbutane is H3C-C(CH3)2-CH2-CH3.
Q: Draw the products for this Diels-Alder reaction with the correct relative configuration of all…
A:
Q: (ii) Irradiation of diene A at 254 nm affords a photostationary mixture of A with triene B. Provide…
A:
Q: Fentanyl is a synthetic opioid that is used for pain management. Fentanyl has a piperidyl ring - a…
A: Cyclohexane prefers chain conformation. The groups at equatorial positons on cyclohexane will have…
Q: R3 R2 R1 H
A: The answer is given as follows
Q: 1- Chloro-1,2-diphenyletane can undergo E2 elimination to give either cis- or…
A: E2 elimination It is the elimination reaction, that takes place in one step. The mechanism involves…
Q: In another part of the project, an analogue of the protease inhibitor darunavir is further…
A: Darunavir is an engineered nonpeptidic analogue of amprenavir with upgraded action against safe…
Q: The following Diels-Alder reaction product is an intermediate in the synthesis of cholesterol.…
A:
Q: (2) jlakai Which of the following statements about carbon migrations is correct Carbon migrations…
A: A rearrangement reaction is a broad class of organic reactions where the carbon skeleton of a…
Q: 12. What is the term for the observed preference of electronegative substituents adjacent to the…
A: In pyranose structure, alpha and beta forms are possible. For glucose system, percentage of alpha…
Q: When (S)-2-bromopropanoic acid [(S)-CH;CHBFCO,H] reacts with concentrated sodium hydroxide, the…
A: When an electron-donating neighboring group is present, the rate of SN2 reaction increases and the…
Q: 1. Write down the unique reactions in organometallic chemistry with suitable examples. 2. Why…
A:
Q: Classify the sigmatropic rearrangement with bracketed numbers.
A: Sigmatropic rearrangement : is a pericyclic intramolecular rearrangement reaction in which one sigma…
Q: 4. For the following reactions, develop a transition-state structure using molecular models which…
A: All the transition states are given in third bracket. 4a) Reaction type: Electrocyclic reaction…
Q: Assign a stereodescriptor to the following molecule clearly indicating CIP (Cahn- Ingold-Prelog)…
A: We have given annsa compound. Which is chiral .
Q: . Considering following reactions concerted, predict the stereochemical modes involved and classify…
A: Cycloaddition reaction is a type of pericyclic reaction in which two diene or a diene and a…
Q: Define about Sigmatropic Rearrangements ?
A: Organic chemistry involves the study of a large number of name reactions and mechanisms which gives…
Q: Draw the structure for (E)-1,3,3-tribromo-2-methylpenta-1,4-diene. Be sure to clearly depict the…
A:
Q: Using the Woodward–Hoffmann rules, predict the stereochemistry of belowreaction. photochemical…
A: Photochemical electrocyclic ring closure is a pericyclic reaction which occurs by concerted shift of…
Q: What is the stereochemical outcome of the oxidation of cis-1,2-dimethylcyclohexene,with KMnO4
A: The oxidation reaction of cis-1,2-dimethylcyclohexene with KMnO4 is as shown below:
Q: Consider the following statement in reference to SN1, SN2, E1, and E2 reactions of haloalkanes. To…
A: Given statement: Substitution at a stereo center gives predominantly a racemic product.
Q: Show that the [4 + 4] cycloaddition of two butadiene molecules to give cycloocta1,5-diene is…
A:
Q: a) Draw all the molecular orbitals of ethene and buta-1,3-diene, indicating where applicable which…
A: Since you have asked multiple questions we will answer the first one for you. To get the remaining…
Q: (b) The reaction (R)-2-chloro-3-methylbutane with KOH shown below, resulted in a mixture of three…
A:
Q: (a) A compound known to be a substituted cyclohexanone derivative has lamda max of 235 nm. Could…
A: a) It is said that the compound is a substituted cyclohexanone. This means the compound is a…
Q: Predict the neutral organic products of the reaction. Show stereochemistry clearly.
A: The neutral organic products of the reaction with stereochemistry can be shown below
Step by step
Solved in 2 steps
- a) Explain the regiochemical outcome (i,e major vs minor product formation) for the following reaction: CN CN CN maj or minor b) Use molecular orbital theory to explain in detail the stereochemical outcome for the following transformation: lightDefine about Sigmatropic Rearrangements ?Consider the reaction between (1S,3S)‑1‑chloro‑3‑methylcyclopentane and methanethiol in the presence of sodium hydroxide. (a) Draw the organic product and clearly indicate stereochemistry by showing the hydrogen on the chirality centers and using wedge and dash bonds. (b) Then analyze the stereochemistry of the product. racemic chiral achiral (1R, 3S) (1R, 3R) (1S, 3S)
- Explain [3,3] Sigmatropic Rearrangements ?(-)-Cameroonanol has been isolated from the essential oil of Echinops giganteus (globe thistle) plants and it is associated with a strong woody fragrance. Its structure, includ- ing relative stereochemistry, was confirmed when it was made in the laboratory according to the sequence shown below.' Recall that a C=C bond is made up of one o bond and one 7 bond. These two bonds together have a combined BDE (bond dissociation energy) of 607 kJ/mol. Use this information to estimate the AH for the conversion of compound 1 into compound 2. Br two steps .... H HBr hv H.. (--Cameroonanolㅇ (E)- (Z)- ㅇ (R)- ㅇ (S)-
- a) What product is formed from the [1,7] sigmatropic rearrangement of a deuterium in the following triene? (b) Does this reaction proceed in a suprafacial or antarafacial manner under thermal conditions? (c) Does this reaction proceed in a suprafacial or antarafacial manner under photochemical conditions?Draw the structure of (Z)-1-bromo-1-chloro-1-butene. • Consider E/Z stereochemistry of alkenes. • You do not have to explicitly draw H atoms. AAVII ? ChemDoodle [F Ⓡ9. Rank the following groups in order of decreasing the priority. (a) —СНз, —СН2CН3, —СH2CH2СН3, — (CН2)3СH3 (b) —СООН, -CH2OH, —Н, —СНО (с) —С-СН, —CH(CH:)2, —СH2CН3, —СН3СH2
- Optically active (R)-2-bromobutane can be converted to 2-butanol under either conditions A or conditions B. Describe the stereochemistry of the product solutions for the two different conditions.Describe briefly with either UV-Vis or IR spectroscopic method that could be employed to distinguish one compound from the other for the following pairs: (1) H,C=CHCH=CH, and HC=CCH,CH, (2) CH,CH,CH,CH, and CH,-CHCH,CH,OнConsider the structure (6R,7S)-6,7-dimethyl-1,2,3,4,6,7-hexahydronaphthalene of (6R,7S)-6,7-dimethyl-1,2,3,4,6,7-hexahydronaphthalene, which can undergo an electrocyclic ring opening. The concerted electron shifts result in a highly stereoselective product. The configuration of the product depends on whether it is a thermal reaction or a photochemical reaction. Predict the thermal and photochemical outcomes of this reaction. Draw the thermal product. Draw the photochemical product. Erase Select Draw Rings More Erase Select Draw Rings More