6. Indicate the product formed in an intramolecular Diels-Alder reaction of 1, 3, 9-decatriene.
please show work and
steriochemistry
Draw a product of the following reaction. Indicate the stereochemistry of the Diels-Alder product.
Draw a product of the following reaction. Indicate the stereochemistry of the Diels-Alder product.
Asked Apr. 14, 2014
draw the
major product/s of the following reaction!
m A 16. Hint: Think intramolecular Diels-Alder
Intramolecular Diels-Alder reactions have become increasingly important in synthesis. Draw carefully the structure of the product expected from heating the following compound. What is the minimum value of (n) necessary to allow the intramolecular reaction to proceed? (Models are useful here). w o CO2Et
For the nucleophilic-substitution
part (The second part. First part is the Diels-Alder Reaction)
indicate which is the nucleophile (by putting a circle around it)
and which is the electrophilic part (by putting a square around it)
and which part is a leaving group (by putting oval shape around
it.)
Diels-Alder Reaction + Intramolecular Nucleophilic Acyl Substitution : A Huge Increase in Molecular Complexity in One Reaction Flask no heat $$$=(3- no solvent H * (and enantiomer) CO2H
1) Predict the major product of each of the following Diels-Alder Reactions 2) What compound could be used to make the product below in an intramolecular Diels-Alder Reaction? O,
Draw the Diels-Alder Product for this reaction
The Diels-Alder Reaction: Secti dienophile can be an alkyne Planck Draw the Diels-Alder Product for this reaction
Predict the product for the following Diels-Alder
reaction?
1. Predict the product for the following Diels-Alder reaction. COCH3 COCH3 CCH3 OCH3 OCH3 IV A) I B) II C) III IV E) None of these
2) Predict the starting materials for the following Diels-Alder product: ० H क 3) Some highly fused ring systems can be made through an intramolecular Diels-Alder reaction. Suggest a mechanism for the following reaction:
Draw a product of the following Diels-Alder reaction, and indicate the stereochemistry (only show one product C) CH30 OCH3 0
5. Bicyclic methyl ester 3 can be prepared from (E)-nona-6,8-dienal by a Horner Wadsworth-Emmons reaction and subsequent heating to induce an intramolecular Diels-Alder reaction. Draw the necessary HWE reagent (what is the phosphorous ylide?) as well as a transition state for the DA reaction. Is the final product 3 an endo or an exo cycloadduct? H. H 0 heat 3
5. Bicyclic methyl ester 3 can be prepared from (E)-nona-6,8-dienal by a Horner Wadsworth-Emmons reaction and subsequent heating to induce...