heck the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table.
Basics in Organic Reactions Mechanisms
In organic chemistry, the mechanism of an organic reaction is defined as a complete step-by-step explanation of how a reaction of organic compounds happens. A completely detailed mechanism would relate the first structure of the reactants with the last structure of the products and would represent changes in structure and energy all through the reaction step.
Heterolytic Bond Breaking
Heterolytic bond breaking is also known as heterolysis or heterolytic fission or ionic fission. It is defined as breaking of a covalent bond between two different atoms in which one atom gains both of the shared pair of electrons. The atom that gains both electrons is more electronegative than the other atom in covalent bond. The energy needed for heterolytic fission is called as heterolytic bond dissociation energy.
Polar Aprotic Solvent
Solvents that are chemically polar in nature and are not capable of hydrogen bonding (implying that a hydrogen atom directly linked with an electronegative atom is not found) are referred to as polar aprotic solvents. Some commonly used polar aprotic solvents are acetone, DMF, acetonitrile, DMSO, etc.
Oxygen Nucleophiles
Oxygen being an electron rich species with a lone pair electron, can act as a good nucleophile. Typically, oxygen nucleophiles can be found in these compounds- water, hydroxides and alcohols.
Carbon Nucleophiles
We are aware that carbon belongs to group IV and hence does not possess any lone pair of electrons. Implying that neutral carbon is not a nucleophile then how is carbon going to be nucleophilic? The answer to this is that when a carbon atom is attached to a metal (can be seen in the case of organometallic compounds), the metal atom develops a partial positive charge and carbon develops a partial negative charge, hence making carbon nucleophilic.
Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the none of the above box under the table.
![**Title: Identifying Enantiomers**
**Instructions:**
Check the box under each structure in the table that is an enantiomer of the molecule shown below. If none of them are, check the "none of the above" box under the table.
**Reference Molecule:**
- A five-membered ring with a nitrogen atom (HN) attached and a chiral center, indicated by the solid and dashed wedges.
**Structures to Compare:**
- **Molecule 1:** Five-membered ring with NH group, chiral center configuration matches reference molecule.
- **Molecule 2:** Has solid and dashed wedges with a different stereochemistry from the reference.
- **Molecule 3:** Configuration appears to be a mirror image, potential enantiomer.
- **Molecule 4:** Solid and dashed wedges suggest an identical configuration to Molecule 5.
- **Molecule 5:** Shares configuration with Molecule 4, not a mirror image.
- **Molecule 6:** Potential enantiomer with opposite stereochemistry indicated by solid and dashed wedges.
**Options:**
- Check the correct boxes under molecules that are enantiomers.
- If none of the structures are enantiomers, check "none of the above."
**Explanation:**
An enantiomer is a chiral molecule that is a non-superimposable mirror image of another. This requires analyzing the stereochemistry at the chiral center.
**Actions:**
- [ ] Molecule 1
- [ ] Molecule 2
- [ ] Molecule 3
- [ ] Molecule 4
- [ ] Molecule 5
- [ ] Molecule 6
- [ ] none of the above
**Resources:**
- **Explanation**
- **Check**
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