Chemistry, 30.03.2020 20:25, mollykay2001p3qo0j
It is difficult to prepare an amide from a carboxylic acid and an amine directly, since an acid-base reaction occurs which renders the amine nitrogen non-nucleophilic. Typically, in such an amide synthesis, the carboxylic acid OH group is first transformed into a better, nonacidic leaving group. In practice, amides are often prepared by treating the carboxylic acid with dicyclohexylcarbodiimide (DCC). The amine is then added and nucleophilic acyl substitution occurs easily because dicyclohexylurea is a good leaving group. This method of amide bond formation is a key step in the laboratory synthesis of peptide bonds (amide bonds) between protected amino acids. Draw curved arrows to show the movement of electrons in this step of the mechanism.
Answers: 1
Chemistry, 21.06.2019 19:00, lazavionadams81
Identify which properties could correspond to solids, plasmas, or both. maintain a unique shape. collide infrequently with other particles. have very high velocities. conduct electricity. protons. have a low temperature. has long-range order.
Answers: 1
Chemistry, 22.06.2019 01:00, chrisxxxrv24
What are the variables in gay-lussac’s law? pressure and volume pressure, temperature, and volume pressure and temperature volume, temperature, and moles of gas
Answers: 1
Chemistry, 22.06.2019 03:00, bchagnard2122
Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?
Answers: 2
Chemistry, 22.06.2019 16:00, annsmith66
What statement goes against the kinetic theory of gases
Answers: 1
It is difficult to prepare an amide from a carboxylic acid and an amine directly, since an acid-base...
Mathematics, 23.02.2021 05:00
Mathematics, 23.02.2021 05:00
English, 23.02.2021 05:00
Mathematics, 23.02.2021 05:00
Business, 23.02.2021 05:00
Mathematics, 23.02.2021 05:00