Questions Predict the products in the following reactions. 1. b) 2. Predict the diene and dienophile...
4. Predict the diene and dienophile that would lead to each of the following products MeOOC,CH3,CF3 4. Predict the diene and dienophile that would lead to each of the following products н н Меодс 1) MeOOC 2) CH3 3) CF3
Draw the products of the following reactions when the diene and dienophile are heated. Draw the products of the following reactions when the diene and dienophile are heated.
Questions 1. Predict the products in the following reactions. ( +CH,0,с- CC COoCHs nb 00HodmuM nb (b) (e) CN (d) CN OCH3 Co Phpic (e) осн (f) + benlado toubebla asM Н.со осн, gnle Joubong ebl a, lose cotton 2. Predict the diene and dienophile that would lead to each of the following products. CF3 (b) CH3 CFS m Ede осн k he (c) осн T white duct and Нас un ether
Predict the product in each of the following Diels-Alder reactions. Predict the product in each of the following Diels-Alder reactions. Cyclopentadience reacts as a diene in the Diels-Alder reaction a great deal faster than does 1,3-butadience. Explain. Predict the diene and dienophile that would lead to each of the following products.
Questions 1. Why does the trans conformation of a diene, in reaction with a dienophile, not lead to a Diels-Alder reaction product? 2. Complete the following Diels-Alder reactions. Provide the major endo-product(s). Dienophile Product(s) 3. How many i electrons are there in a molecule of 1,3-butadiene?
provide the required diene and dienophile for each of the following Diels-Alder reactions (12 pts) Provide the required diene and dienophile for each of the following Diels-Alder reactions HNO2 a) -OMe H Me NMe2 Me b) OMe Me NC Me Me Me OMe c) NC Me
4. Draw the structure of the diene and dienophile combination that would lead to each of the Alder products. (4 pts each) Diene MeO MeO ??? ???? CH3
2. When both the diene and dienophile are unsymmetrical, then regiochemistry becomes an issue. In this case, it is helpful to remember that when you number the diene and dienophile, that carbon 1 of the diene can either attach to carbon 6 or to carbon 5 of the dienophile: 1 1 2 4 2 6 2 5 1 5 3 3 5 3 6 4 4 In on top of this, you still need to think about the different possible...
What diene and dienophile do you need to prepare each of the following products?
Draw the structures of the diene and dienophile that yield the following enantiomeric products in the Diels