Answered: This reaction usually give a mixture of…

This reaction usually give a mixture of cis- and trans-diphenylethene, but in this experiment, we prepared only the trans-isomer. Explain how?

Chemistry by OpenStax (2015-05-04)

1st Edition

ISBN:9781938168390

Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser

Chapter12: Kinetics

Section: Chapter Questions

Problem 61E: An elevated level of the enzyme alkaline phosphatase (ALP) in human serum is an indication of...

See similar textbooks

Related questions

Q: What product would be formed by the disrotatory cyclization of the given triene? Would this reaction…

A: Ring closure reactions are of 2 types - Disrotatory when 2 substituents more in opposite…

Q: Which compound would you expect to have the greater heat of hydrogenation: 1,2-pentadiene or…

A: Below is the reaction of both molecules which will happen during hydrogenation. Since the product…

Q: The triphenylmethyl cation is so stable that a salt such as triphenylmethyl chloride can be isolated…

A: The species in which carbon carries a positive charge is called as carbocation. Carbocations are…

Q: Complete the following sequence of reactions by indicating the missing reagent(s). Also, show the…

Q: Select the compound(s) that will give only a single monochlorination product in its free radical…

Q: Two of the carbocations are prone to rearrangement. Show how they might rearrange to more stable…

A: Carbocation Rearrangement is the movement of carbocation from an unstable state to a stable state by…

Q: Why is there a difference in racemization for the two reactions even though they both include the…

A: Bromine is an excellent leaving group compared to hydroxyl group. Hence, in case of 2-bromobutane,…

Q: Give the product and the mechenism of the following reaction

A: The reaction given is,

Q: 3) If the product of an SN1 or Free radical reaction contains a stereocenter then a mixture occurs.…

A: The correct answer is given below

Q: Explain why 1,3-butadiene was not used in this reaction, but rather 3-sulfolene. What is the…

A: Solution : In the case of the Diels-Alder reaction, we prefer to use 3-sulfolene instead of…

Q: The activating and deactivating groups could affect the position(s) of the next incoming group(s) to…

A: Activating groups: ortho or para directors Substituents on the ring are groups that donate…

Q: 4. Are there any RX compounds from part A that are not expected to undergo an Sn1 or SN2 reaction?…

A: Note: Chloro benzene, bromo benzene cannot participate in sn1 or sn2 due to unstable carbocation and…

Q: If the following compound was reacted with Bromine and light under the same reaction conditions as…

A: The rate of the reaction can be described as the time taken by the reactant of certain concentration…

Q: A Moving to another question will save this response. Question 5 Which one of the following…

A: In the given compounds toluene,benzene, chlorobenzene,t-butyl benzene undergo a Friedel-crafts…

Q: NH₂ Br₂ AlBr3 HNO3/H₂SO4 OH NH₂ Br₂ AlBr3 NO2 HNO3/H₂SO4

Q: Indicate the 2 carbanions that this compound can give. Point out the most stable and explain it.

A: Carbanion is species in which carbon carrying negative charge. In carbanion, carbon atom is sp³…

Q: Consider the following electrocyclic ring closure. Does the product form by a conrotatory or…

A: Woodward - Hoffmann rules are the set of rules used to vindicate or predict certain aspects of the…

Q: Why do these two dienes react at different temperatures?

A: S - cis diene is required for diels alder reaction

Q: see the attached question and out of these 3 comounds, which one is the best dienophile ?

Q: Complete the following reactions, clearly indicating regio-and stereochemistry where applicable. In…

A: In this question, we want to complete this reaction with regio-and stereochemistry. You can see…

Q: 3. Rank the following in order by the rate in which they could participate in an SN1 reaction (“1"…

Q: When carrying out this two step procedure (bromination and subsequent elimination) on cyclopentene,…

A: The product of given reaction surely could not be alkyne since it is strained one.

Q: Indane can undergo free-radical chlorination at any of the alkyl positions onthe aliphatic ring.…

A: The possible monochlorinated products from the given free-radical chlorination of indane are shown…

Q: In Part 1, select the two new o bonds that were formed in this Diels-Alder reaction. In Parts 2 and…

Q: Write out the SN2 Mechanism for 1-Bromobutane with Nal in acetone, also include transition state,…

A: Alkanes are the organic compounds that contain single bonds between carbon atoms in a compound.

Q: Cyanohydrin formation is useful because of the further chemistry that can be carried out on

A: C=O group is called carbonyl group Aldehyde and ketone both are combinedly called carbonyl…

Q: Select the member of each pair that shows the greater rate of SN2 reaction with KN3 in acetone.

A: SN2 reaction rate depends upon the steric effect. Higher the steric hindrance, lower would be the…

Q: What is the predicted product of the reaction shown?

A: Reduction of functional group(mainly alkenes, alkynes, nitriles etc) takes place under H2 / Ni.

Q: Which reaction below gives a single enantiomer of a chiral product?

Q: Demonstrate the results of the reactions between this alkyne and the various reagents. NaNH2…

A: Alkyne is most reactive among hydrocarbons because of the presence of two pie bonds which are quite…

Q: Give the reaction mechanism (showing curly arrows) for the bromination of methane in the presence of…

A: Organic reactions are those in which organic reactant react to form organic products.

Q: How would this reaction proceed and what is the resulting stereochemistry/regiochemistry of the…

Q: Ignoring isotope effects, after one E2 elimination with ethoxide, which bromine will predominate in…

A: As the E2 elimination reaction follows is anti periplanar mechanism i.e it takes place only when the…

Q: Determine the product of the reaction

A: In the hydro-chlorination reaction, first proton is added in the least substituted carbon then the…

Q: Mechanistically, the addition of HCl to this alkene is regioselective and gives only one product…

Q: Indane can undergo free-radical chlorination at any of the alkyl positions onthe aliphatic ring.Once…

Q: Indane can undergo free-radical chlorination at any of the alkyl positions onthe aliphatic ring.…

A: Indane is an organic compound which two part, one part is an aromatic ring and other part of the…

Q: Which mononitro product is the result of the nitration reaction of the compound whose open structure…

A: In amide group, -CO-NH- group lone pair of Nitrogen atom are in resonance with Carbonyl group. The…

Q: Show how the o-bromopropylbenzene can be synthesized from benzene:

Q: Explain and show hydroboration-oxidation reaction mechanism for trans-1,3-dimethylcyclohexane.

A: The structure of trans-1,3-dimethylcyclohexane.

Q: show the mechanism and draw the diels alder product of 1,3 butadiene reacted with cis butenedioic…

A: Ans

Q: Starting with 2-bromobutane show how to synthesize 1-butyne (Pay attention to Zaitsev’s rule.)

Q: In the dehydrohalogenation of bromocyclodecane, the major product is cis -cyclodecene rather than…

A: In the dehydrohalogenation of bromocyclodecane, cis-cyclodecene and trans-cyclodecene are formed.

Q: Give the reaction mechanism (showing curly arrows) for the bromination of methane in the presence of…

A: Here we are required to show the mechanism of the reaction

Q: Giving your reasoning, rank the following dienes in order of increasing reactivity reaction. i) ii)…

Q: Please show the reaction for the Alkene Halogenation and Explain each step in the reaction in great…

A: Alkenes react readily with chlorine or bromine, in dark, in a solvent such as CCl4 , to produce the…

Q: Draw the mechanism of the hydroboration reaction for 1-octene. Why are carbocation rearrangements…

A: Structure of octene : Ch3-(CH2)5-CH2-CH3 Reagents: NaOH + H2O2

Concept explainers

Aromatic Compounds

Aromatic organic compound or aromatic system is an important class of hydrocarbons under the branch of organic chemistry. Aromatic compounds are also called arenas. The definition of aromatic organic compounds can be stated as a class of organic compounds with a planar cyclic ring of atoms bonded through alternated single and double bonds. Due to these alternating bonds, a peculiar feature termed as ‘resonance’, that is, delocalization of pi electrons or the electrons is shared within the atoms of the ring which are present in the aromatic compounds. The word ‘aromatic’ includes a Greek word ‘aroma’ which means smell, indicating that they were named as such due to the sweet odor they produce. Many well-known flavors such as vanilla, cinnamon, and few scents from flowers are extracted from aromatic compounds. Benzene with chemical formula C6H6 is a very common aromatic compound that contains six atoms of carbon held in the cyclic ring of alternate double bonds. It is also to be noted that not all aromatic compounds contain benzene ring. This can be explained by Huckel’s rule.

Question

This reaction usually give a mixture of cis- and trans-diphenylethene, but in this experiment,
we prepared only the trans-isomer. Explain how?

PPh3Cl*
NaOH/H2O
Intermediate A
CH2Cl2
1)
What is the structure of intermediate A?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Compound A is converted to compound B via a one-step reaction with an activation energy of +3 kcal/mol. The energy difference between Compound B and the transition state of the reaction is 7 kcal/mol. What is the AH° for the reaction? O -10 kcal/mol -4 kcal/mol +10 kcal/mol -3 kcal/mol +3 kcal/mol +4 kcal/mol
classify the following reaction C2H6 + O2 -- CO2 + H2O
What is the structure of intermediate A? 1) BH3 2) NaOH, H2O2, H₂O A B
Please
Complete the following reaction sequence, giving structural details of all key intermediates:
Draw a structural formula for the intermediate in the following reaction: + Cl₂ CH₂Cl₂
Most stable carbonium ion intermediate
An elevated level of the enzyme alkaline phosphatase (ALP) in human serum is an indication of possible liver or bone disorder. The level of serum ALP is so low that it is very difficult to measure directly. However. ALP catalyzes a number of reactions, and its relative concentration can be determined by measuring the rate of one of these reactions under controlled conditions. One such reaction is the conversion of p-nitrophenyI phosphate (PNPP) to p-nitrophenoxide ion (PNP) and phosphate ion. Control of temperature during the test is very important; the rate of the reaction increases 1.47 times if the temperature changes from 30 C to 37 C. What is the activation energy for the ALP-catalyzed conversion of PNPP to PNP and phosphate?
NH3(g) + HCIO4(1) E→ NH,CI0,(s) A B C D Ep E, Ep - R P R P R R Reaction Path Reaction Path Reaction Path Reaction Path A
Complete A-> H for this reaction by fill in the blank with appropriate chemicals
Draw all the intermediates formed for the reactions shown. (Hint: There are five intermediates for the first reaction and two for the second reaction, and the final product shown is not counted, of course.) LOH OH 0 HO H+ за
Complete the reactions given below H+/isi OH c)