Interpretation:
The manner of ring closure-conrotatory or disrotatory- for both thermal and photochemical cyclization of (2E,4Z,6Z,8Z)-2,4,6,8-decatetraene indicating the stereochemistry of the product is to be stated.
Concept introduction:
An electrocyclic reaction involves the cyclization of a conjugated acyclic system. These reactions are reversible and are highly stereospecific.
In elecrocyclic reactions involving even number of electron pairs, a thermal reaction occurs in conrotatory manner and a photochemical reaction occurs in disrotatory manner.
In elecrocyclic reactions involving odd number of electron pairs, a thermal reaction occurs in disrotatory manner and a photochemical reaction occurs in conrotatory manner.
To predict:
The manner of ring closure-conrotatory or disrotatory- for both thermal and photochemical cyclization of (2E,4Z,6Z,8Z)-2,4,6,8-decatetraene.
To state:
The stereochemistry of the product.
Trending nowThis is a popular solution!
Chapter 30 Solutions
OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card for McMurry's Organic Chemistry, 9th
- ASP please....arrow_forwardNonearrow_forwardConsider the structure of 1-bromo-2-fluoroethane. Part 1 of 2 Draw the Newman projection for the anti conformation of 1-bromo-2-fluoroethane, viewed down the C1-C2 bond. ✡ ぬ Part 2 of 2 H H F Br H H ☑ Draw the Newman projection for the gauche conformation of 1-bromo-2-fluoroethane, viewed down the C1-C2 bond. H F Br H Harrow_forward
- Please help me answer this question. I don't understand how or where the different reagents will attach and it's mostly due to the wedge bond because I haven't seen a problem like this before. Please provide a detailed explanation and a drawing showing how it can happen and what the final product will look like.arrow_forwardWhich of the following compounds is the most acidic in the gas phase? Group of answer choices H2O SiH4 HBr H2Sarrow_forwardWhich of the following is the most acidic transition metal cation? Group of answer choices Fe3+ Sc3+ Mn4+ Zn2+arrow_forward
- Based on the thermodynamics of acetic acid dissociation discussed in Lecture 2-5, what can you conclude about the standard enthalpy change (ΔHo) of acid dissociation for HCl? Group of answer choices You cannot arrive at any of the other three conclusions It is a positive value It is more negative than −0.4 kJ/mol It equals −0.4 kJ/molarrow_forwardPLEASE HELP URGENT!arrow_forwardDraw the skeletal structure corresponding to the following IUPAC name: 7-isopropyl-3-methyldecanearrow_forward
Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning