Asymmetric Autocatalysis
A distinctive reaction mechanism in which the product catalyzes its own formation. Because the product acts as its own catalyst, a minute initial chiral imbalance can be amplified, ultimately yielding a product that approaches a single enantiomer. This mechanism is central to studies of chiral amplification and of the origin of homochirality in biological molecules.
Timeline (last 90 days)
The Soai reaction demonstrates an autocatalytic phenomenon in which the reaction product itself can act as a catalyst to promote its own formation, and an initial ee value of only 2% can climb to above 87% after multiple rounds of autocatalytic cycles.
Soai discovered the asymmetric autocatalytic reaction—the product itself can catalyze its own formation, achieving a chiral amplification effect, such that even if the ratio of the two enantiomers deviates only slightly at the start, the reaction can spontaneously amplify the deviation to nearly a single enantiomer.
In 1995, Soai and his colleagues reported a landmark asymmetric autocatalytic reaction: the addition of dialkylzinc reagents to pyrimidine-containing aldehydes, producing a chiral alcohol that can promote the reaction.
The Soai reaction is the first and to date most exemplary experimental demonstration of asymmetric autocatalysis.
The Frank model demonstrates that if a chiral molecule can catalyze its own formation while inhibiting the formation of its mirror-image molecule, even an extremely minute initial difference in the ratio of the two chiral molecules will ultimately evolve into an almost purely single-chirality outcome.
All Facts (5)
The Soai reaction demonstrates an autocatalytic phenomenon in which the reaction product itself can act as a catalyst to promote its own formation, and an initial ee value of only 2% can climb to above 87% after multiple rounds of autocatalytic cycles.
60%UnverifiedSoai discovered the asymmetric autocatalytic reaction—the product itself can catalyze its own formation, achieving a chiral amplification effect, such that even if the ratio of the two enantiomers deviates only slightly at the start, the reaction can spontaneously amplify the deviation to nearly a single enantiomer.
50%UnverifiedThe Soai reaction is the first and to date most exemplary experimental demonstration of asymmetric autocatalysis.
50%UnverifiedThe Frank model demonstrates that if a chiral molecule can catalyze its own formation while inhibiting the formation of its mirror-image molecule, even an extremely minute initial difference in the ratio of the two chiral molecules will ultimately evolve into an almost purely single-chirality outcome.
50%UnverifiedIn 1995, Soai and his colleagues reported a landmark asymmetric autocatalytic reaction: the addition of dialkylzinc reagents to pyrimidine-containing aldehydes, producing a chiral alcohol that can promote the reaction.
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