These two researchers helped answer one of the great questions of science: How could nature create homochirality from achiral starting materials? Click the link to learn more: buff.ly/XOxdSPT 1/7
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These two researchers helped answer one of the great questions of science: How could nature create homochirality from achiral starting materials? Click the link to learn more: buff.ly/XOxdSPT 1/7
3 reposts5 likes
The amino acids, sugars, and nucleic acids that make up our cells are homochiral, which means that in living systems you’ll only find one enantiomer, or one molecular version of a mirror-image pair. 2/7
We knew of reactions that could make chiral molecules from achiral ones, but the products would be 50/50 mixtures. A reaction that could create an enantiomerically pure product from completely achiral reagents seemed elusive, until … 3/7
Henri B. Kagan showed in 1986 that a small excess of one catalytic enantiomer can lead to a larger excess of the desired product due to mutual inhibition, a phenomenon known as “non-linear effects.” 4/7
Kensō Soai reported a reaction in 1990 that was both autocatalytic & enantioselective — two things that had been done before but never together. 5 years later, Soai & colleagues reported an asymmetric autocatalytic reaction in which the product had a higher enantiomeric excess than the catalyst. 5/7