Chiral Memory Using the Property of Organic Crystals

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New absolute asymmetric synthesis using the property of organic crystals were developed. Crystallization under various conditions was examined and was clarified a change of molecular structure, polymorphism and the crystal structure. Furthermore, I succeeded in controlling the rate of racemization of the apparent chiral molecules in the chiral crystals, and leading it effectively to the optically active products. I also developed the highly diastereoselective reaction using chiral memory controlled by crystallization induced diastereomer transformation (CIDT).