Questions from Organic Chemistry

Q: Draw the structure of the protected amino acid that must be anchored

Draw the structure of the protected amino acid that must be anchored to the solid support in order to use a Merrifield synthesis to prepare leucine enkephalin. (N terminus) Try-Gly-Gly-Phe-Leu (C ter...

Q: A proline residue will often appear at the end of an α

A proline residue will often appear at the end of an α helix but will rarely appear in the middle. Explain why proline generally cannot be incorporated into an α helix.

Q: Draw a mechanism for the following reaction: /

Draw a mechanism for the following reaction:

Q: Draw the alkyl halide that would be necessary to make the amino

Draw the alkyl halide that would be necessary to make the amino acid tyrosine using an amidomalonate synthesis. This alkyl halide is highly susceptible to polymerization. Draw the structure of the exp...

Q: When leucine is prepared with an amidomalonate synthesis, isobutylene (also

When leucine is prepared with an amidomalonate synthesis, isobutylene (also called 2methylpropene) is a gaseous by-product. Draw a mechanism for the formation of this by-product.

Q: The side chain of tryptophan is not considered to be basic,

The side chain of tryptophan is not considered to be basic, despite the fact that it possesses a nitrogen atom with a lone pair. Explain