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2. (b) R. Noyori: Angew. Chem., Int. Ed., 2002, 41, 2008.
3. (c) K. B. Sharpless: Angew. Chem., Int. Ed., 2002, 41, 2024.
4. [2] Y. Inoue: Chem. Rev., 92, 471 (1992).
5. [3] S.R.L. Everitt, Y. Inoue: “Organic Molecular Photochemistry”, Marcel Dekker, New York, pp. 71-130 (1999).