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- W4255487148 abstract "When a chiral compound operates as a chiral catalyst for its own production, the process is defined as asymmetric autocatalysis. In the enantioselective addition of diisopropylzinc to nitrogen-containing aryl aldehydes, asymmetric autocatalysis has been realized. 3-Pyridyl-, 5-pyrimidyl-, and 3-quinolylalkanols are efficient chiral catalysts for the enantioselective isopropylatfon of the corresponding aldehydes, and the alkanols themselves are obtained in high yields and in high enantiomeric excess (ee). Asymmetric autocatalyst with extremely low ee value automultiplies with significant amplification of the ee to afford the (same) products with extremely high ee values. In the presence of chiral molecules with only a slight enantiomeric imbalance, which can be induced by chiral physical factors, organic molecules with extremely high ee are obtained using an asymmetric autocatalytic system. Moreover, absolute asymmetric synthesis, i.e., the reaction of pyrimidine carbaldehyde and diisopropylzinc in the absence of chiral molecules, yields enantioenriched (S)-or (R)-alkanols with a stochastic distribution" @default.
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- W4255487148 date "2004-07-04" @default.
- W4255487148 modified "2023-10-12" @default.
- W4255487148 title "Asymmetric Autocatalysis and the Origin of Homochirality of Biomolecules" @default.
- W4255487148 doi "https://doi.org/10.1021/bk-2004-0880.ch006" @default.
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