Stereochemistry is critical in biosystems, medicine, and the chemical industry. For example, the (R)enantiomers of dichlorprop and mecoprop, two commonly used herbicides, exhibit active weed-killing properties, while the (S)-enantiomer has no activity. Commercially available Ibuprofen, a common NSAID, is known as a racemic mixture. However, only the (S)-enantiomer exhibits pharmacological activity. The (R)-enantiomer is inactive but is gradually converted to the (S)-enantiomer. Another example is citalopram, an antidepressant, a racemic mixture. However, its (R)-enantiomer, termed escitalopram, has been shown to have superior efficacy than citalopram. The administration of Ibuprofen as racemates is safe, as the inactive (S)-enantiomer is not toxic. However, due to undesired harmful effects, other drugs must be administered as enantiomerically pure compounds. Thalidomide became infamous in the 1950s for causing over 2,000 congenital disabilities in children of pregnant women who were prescribed the drug. The (R)-enantiomer successfully treated nausea and relieving anxiety, but the (S)-enantiomer is teratogenic formation and hence the congenital disabilities. Salbutamol, an active bronchodilator is another drug administered as the (R)-enantiomer, (S)-Salbutamol has adverse effects. Likewise, Naproxen cannot be administered as a racemic mixture as the (R)-enantiomer is effective for arthralgic pain, but the (S)-enantiomer is teratogenic. As a result of these observations, enantioselective synthesis has become essential to many organic methodologies and protocols.