1. Propose a detailed stepwise mechanism, using curved arrow notation, for the following. H+ H a. b. H₂O, heat 1. LiAlH4 (xs) 2. H₂O OH H-N H 2. In the synthesis of peptides, carboxylic acids are condensed with amines in the present of a reagent such as dicyclohexylcarbodiimide (DCC) [Section 25.6]. a. Propose a mechanism for the following, using curved arrow notation. ° DCC H₂N H₂N OH OH H₂N glycine glycine OH Янзон gly-gly

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1. Propose a detailed stepwise mechanism, using curved arrow notation, for the following.
H+
H
a.
b.
H₂O, heat
1. LiAlH4 (xs)
2. H₂O
OH
H-N
H
2. In the synthesis of peptides, carboxylic acids are condensed with amines in the present of a reagent
such as dicyclohexylcarbodiimide (DCC) [Section 25.6].
a. Propose a mechanism for the following, using curved arrow notation.
°
DCC
H₂N
H₂N
OH
OH
H₂N
glycine
glycine
OH
Янзон
gly-gly
Transcribed Image Text:1. Propose a detailed stepwise mechanism, using curved arrow notation, for the following. H+ H a. b. H₂O, heat 1. LiAlH4 (xs) 2. H₂O OH H-N H 2. In the synthesis of peptides, carboxylic acids are condensed with amines in the present of a reagent such as dicyclohexylcarbodiimide (DCC) [Section 25.6]. a. Propose a mechanism for the following, using curved arrow notation. ° DCC H₂N H₂N OH OH H₂N glycine glycine OH Янзон gly-gly
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