Functional Groups & Condensation & Hydrogen Bonding Flashcards
What is an alkane
Single bing free rotation
Whats an alkene
Double bond can form cis trans isomers
Whats an alkyne
Triple bond and highly reactive
What are leaving groups
Lewis bases displaced from carbon in substitution/ elimination reactions
What makes a good leaving group
Weak bases
How do you convert a poor leaving group to good
By converting into conjugate acids
What is a condensation reaction
Addition of alcohol + carboxylic acid to form an ester
What is a condensation reaction catalysed by
An acid to form a dipeptide synthesis
What is the first step of condensation
Protonation
Formation of OH
What is the second step of condensation
Addition
Forming a single c-o bond
Breaking c=o bond
What is formed after the second step of condensation
Tetrahedral intermediate #1
What is the third step of condensation
Deprotonation
Removal if H-O
By adding weak base such as solvent
What is the fourth step of condensation
Protonation
Forming O-H
OH then converted to better leaving grouo OH2
What is the fifth step of condensation
Elimination break C-O bond
Form C=O bond
What is formed after the fifth step of condensation
Tetrahedral Intermediate 2