Enantioselective lewis acid catalysts of the early transition me

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

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556 42, C07C 728, C07C 700, C07C 900

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052312038

ABSTRACT:
Optionally active Lewis acid catalysts of the early transition metals which are useful in the catalysis of asymmetric additions have been prepared. The catalyst complexes comprise an alkoxide of a group IV or group V metal and an optically active trialkanolamine or dialkanolamine ligand.

REFERENCES:
patent: 2824114 (1958-02-01), Bostwick
patent: 4254291 (1981-03-01), Kane
Narasaka, K. Synthesis, Jan. 1991, pp. 1-11.
Whitesell, J., Chem. Rev., vol. 89, pp. 1581-1590 (1989).
Taube, R., Z. Anorg. Allg. Chem., vol. 581, pp. 89-98, 1990.
Chem. Abstracts, vol. 78, No. 66407e, (Astaknov, A., Khim. Khim. Tekhnol., 15(11), pp. 1620-1622, 1972).
Mehrota, R., Jour. Indian Chem. Soc., vol. 44s No. 6, pp. 467-472 (1967).
Mehrota, R., Indian J. Chem., vol. 5, pp. 505-507, 1967.
Chem. Abstracts, vol. 91, p. 30, No. 40289m, (Bokalo, G., Vysokomol. Suedin., Ser. B., vol. 21 (5), pp. 371-376 1979).
Tandura, M. Zhurnal Obschei Khimii, vol. 54, No. 9, pp. 2012-2017, Sep. 1984.
Chem. Abstr., Heterocyclic Compounds, vol. 67, No. 64321w, 1967 (Voronskov, M., Khim. Geterotsikl Suedin. vol. 1, pp. 39-42, 1967).
Chem. Abstr., Inroganic Chem. vol. 113, No. 125232k, 1990 (Liu, Gaodeng Xuexiao Huazue Xuebao, 10(12) pp. 1257-1259, 1989).
Morrison, J., Asymmetric Reduction of Ketones, A.C.S. Symposium Series No. 185, American Chemical Society, Washington, D.C. 1982.
Grassi, M., Tetrahedron, vol. 41, No. 1, pp. 177-181, 1985.
Enziane, K., J. Organometallic Chem., vol. 346, C7-C10, 1988.
Yamashita, H., Bull. Chem. Soc. Japan, vol. 61, pp. 1213-1220, 1988.
Matsubara, S., Tetrahedron Letters, vol. 31, No. 43, pp. 6209-6212, 1990.
Reetz, M., Chem. and Ind., vol. 1, p. 824, Dec. 1986.
Narasaka, T., Chem. Letters, The Chemical Society of Japan, pp. 2073-2076, 1987.
Hayashi, M., J. Chem. Soc., Chem. Common., pp. 1364-1365 (1990).
Noyori, R., Angew. Chem. Int. Ed. Engl., vol. 30, pp. 49-69, 1991.
Chaloner, D., Tetrahedron Letters, vol. 31, No. 36, pp. 5185-5188, 1990.
Yoshioka, M., Tetrahedron Letters, vol. 30, No. 13, pp. 1657-1660, 1989.
Schmidt, B., Angew. Chem. Int. Ed. Engl., vol. 30, pp. 99-101, 1991.
Reetz, M., Tetrahedron Letters, vol. 27, No. 47, pp. 5711-5714, 1986.
Seebach, D., Helvetica Chimica Acta., vol. 70, pp. 954-974.

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