Much of the communication between insects involves chemical messengers called pheromones. A speciesof cockroach secretes a substance from its mandibular glands that alerts other cockroaches to itspresence and causes them to congregate. One of the principal components of this aggregationpheromone is the alkane shown. Give the molecular formula of this substance, and represent it byfully condensed formula. Be sure to answer all parts.Molecular formula: CHCondensed structural formula: CH,(C29HNext>2 of 13PrevWEEEEEEEE LEasearchhpf8f716144fs

Answered: Much of the communication between…

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter5: Alkenes: Bonding, Nomenclature, And Properties

Section: Chapter Questions

Problem 5.33P

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The global consumption of synthetic dyes is increasing due to increase in demand invarious processing/manufacturing industries. Analyze why among the large number of organic molecules, only relatively few moleculesare considered as dyes. Select any one dye which is used in industry and give justificationof type of the dye, its application in the industry and related reactions.
As the molecular weight of alkenes increases, the boiling points also increase. Which ofthe following factors is best associated to this trend? *Dipole interactionGeometric isomerismStructural isomerismSurface areaA radical substitution reaction is primarily observed in the following reactions. Whichreaction is it? *Oxidation of but-2-eneChlorination of butaneBoiling of hex-3-eneCombustion of methaneWhich among the following compounds has the most electronegative carbon in itsstructure? *ButyneBenzeneBenzaldehydeCyclobutane
For the molecule given, prioritize each substituent on the stereogenic carbon, and assign absolute stereochemistry.
Which of the statement is INCORRECT? a. The increase in stability of 2,4-hexadiene over 1,3-hexadiene is due to the increased double bond substitution of the former. b. The stabilization of dienes by conjugation is less pronounced than the aromatic stabilization of benzene. c. Resonance description in alkenes usually involves charge separation. d. Higher energy pi-orbitals often have decreasing number of nodes.
Write chemical structures for compounds A through D in the following sequence of reac- tions. Compounds A and C are alcohols, one of which is cyclic
On the line drawn below, provide the systematic (IUPAC) name for the following structure. Be sure to include stereochemistry (R/S, cis-trans, or E/Z) when appropriate.
For following substituted benzenes: [1] C6H5Br; [2] C6H5CN; [3] C6H5OCOCH3: On balance, does the substituent make a benzene ring more or lesselectron rich than benzene itself?
Give the systematic (IUPAC) name for the following compounds. Include stereochemistry in the name ONLY FOR THOSE STRUCTURES THAT ALLOW YOU TO DETERMINE STEREOCHEMISTRY. In other words, describe the stereochemistry if the molecule is shown as a Fisher projection, or as a perspective formula, or if an alkene is drawn with the correct stereochemistry representation.
A compound C4H11N is known from its reactivity andspectroscopic properties to have no hydrogen atomsattached directly to the nitrogen atom. Write all structuralformulas consistent with this information
Give the structural chemistry of active methylene, classify it asradical/intermediate/stable organic compound, reagent of its production and role in alkylation
Given that five isomeric compounds (A, B, C, D, E) with the molecular formula C5H10O were subjected to chemical tests after undergoing Clemmensen reduction compounds A,B, and C all yielded n-pentane, the results of these tests are provided in the table below. Can you draw the structures of compounds A to E based on the outcomes of the chemical tests?
The compound whose structure is shown here is acetyl acetone. It exists in two forms:the enol form and the keto form The molecule reacts with OH–to form an anion, [CH3COCHCOCH3] (often abbreviatedacac–for acetylacetonate ion). One or the most interesting aspects of this anion is thatone or more of them can react with transition metal cations to give stable, highlycolored compounds (a) Are the keto and enol forms of acetylacetone resonance forms? Explain youranswer.(b) What is the hybridization or each atom (except H) in the enol form? What changesin hybridization occur when it is transformed into the keto form?(c) What are the electron-pair geometry and molecular geometry around each C atomin the keto and enol forms? What changes in geometry occur when the keto formchanges to the enol form?(d) Draw three possible resonance structures for the acac–ion.(e) Is cis-trans isomerism possible in either the enol or the keto form of acetylacetone?(f) Is the enol form of acetylacetone polar?…

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