Name: (S)-Butan-2-ol. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: (S)-Butan-2-ol, is researched, Molecular C4H10O, CAS is 4221-99-2, about Separation of 2-Bromobutane, 2-Chlorobutane, 2-Chloropentane, and 2-Butanol Enantiomers Using a Stationary Phase Based on a Supramolecular Uracil Structure. Author is Nafikova, A. R.; Allayarova, D. A.; Gus’kov, V. Yu..
Abstract: the authors proposed a new chiral stationary phase based on a supramol. uracil structure with induced chirality. According to the Kondepudi effect, mech. stirring gives a supramol. structure layer on the surface of an adsorbent with a predominance of 1 of types of chiral supramol. clusters. The obtained stationary phase was used for the gas-chromatog. separation of enantiomers of 2-bromobutane, 2-chlorobutane, 2-chloropentane, and 2-butanol. The effectiveness of a 1-m column packed with an inert stationary phase modified with uracil is 200-400 theor. plates. The enantiomers of 2-bromobutane and 2-chlorobutane were completely separated using the proposed stationary phase in 210 and 180 s, resp., at 45°. The enantiomers of 2-chloropentane were separated at 60 and 65° in 170 and 160 s, resp. The enantiomers of 2-butanol were partially separated at 100°. The enantioselectivity of the proposed stationary phase is probably associated with the adsorption of 1 enantiomer outside the cavity of the supramol. structure and the other enantiomer inside it.
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