Term
| 3 heptyne is thermodynamically less stable than 1-heptene. |
|
Definition
|
|
Term
| E-2-pentene is thermodynamically more stable than Z-2-pentene. |
|
Definition
|
|
Term
| Whenever an elimination reaction occurs to give the less stable, less highly substituted alkene, the elimination process is said to follow the Hofmann rule. |
|
Definition
|
|
Term
| Bulky organic bases such as potassium tert-butoxide in tert-butyl alcohol are employed in elimination reaction of 2-bromo-2-methyl butane in order to form the thermodynamic alkene product. |
|
Definition
|
|
Term
| The tert-butyl anion is a Lewis base. |
|
Definition
|
|
Term
| When an elimination reaction occurs to give the most stable, most highly-substituted alkene, the elimination process is said to be Hoffman elimination. |
|
Definition
|
|
Term
| When 2,2-dimethylcyclohexanol is subjected to acid-catalyzed dehydration, the major product is 1,2-dimethylcyclohexane. |
|
Definition
|
|
Term
| Primary amines can be Lewis bases. |
|
Definition
|
|
Term
| An allylic carbocation is less stable than a secondary carbocation. |
|
Definition
|
|
Term
| The preferential formation of one product, because the free energy of activation leading to its formation is lower than that for another product, is termed kinetic control. |
|
Definition
|
|
Term
| Acetylene is more acidic than ethane. |
|
Definition
|
|
Term
| The heterogenous addition of hydrogen using Lindlar's catalyst to 2-pentyne results in a final product of cis-2-pentene. |
|
Definition
|
|
Term
| The addition of hydrogen to benzene in the presense of a Pt catalyst will occur at room temperature. |
|
Definition
|
|
Term
| The lowest energy geometry for the E2 transition state is the anti-periplanar arrangement of the beta C-H bond and C-X bond. |
|
Definition
|
|
Term
| In general, elimination reactions are favored over competing substitution reactions at higher temperatures. |
|
Definition
|
|
Term
| A carbocation is an intermediate in the E2 process. |
|
Definition
|
|
Term
| Acetone is a stronger acid than ethanol. |
|
Definition
|
|
Term
| When cis-1-iodo-2-ethylcyclohexane is reacted with sodium ethoxide in ethanol, the major product is 3-ethylcyclohexene. |
|
Definition
|
|
Term
| A vicinal dihalide has halogen atoms on adjacent carbon atoms. |
|
Definition
|
|
