Optically active styrene derivatives, polymers obtained from the

Details Optically active styrene derivatives, polymers obtained from the Optically active styrene derivatives, polymers obtained from the

1989-10-11

1990-09-04

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526266, 546 12, 546300, 5253271, 525371, C08F 2606, C08C 1942

Patent

active

049545922

ABSTRACT:
Optically active compounds of the formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.4 -alkyl, phenyl or benzyl, R.sup.2 is a radical of the formula II or IIa ##STR2## in which R.sup.3 is H or --CH.sub.3, or R.sup.1 and R.sup.2 together form a radical of the formula ##STR3## in which R.sup.2 has the meaning given above; and * represents predominantly R or predominantly S configuration.
The compounds can be polymerized to give homopolymers or copolymers. The compounds and the polymers can be complexed with iridium(I) salts in the presence of a diene. The complexes are suitable as enantioselective catalysts.

REFERENCES:
patent: 4713422 (1987-12-01), Kaschig et al.
patent: 4851534 (1989-07-01), Kaschig
Zassinovich, Journal of Organometallic Chemistry, vol. 222, pp. 323-329 (1981).
Uson, Inorganica Chemica Acta, vol. 73, pp. 275-279 (1983).
Ohkubo, Inorg. Nucl. Chem. Letters, vol. 17 No. 7/8 pp. 278-291.
Hodge et al., Organic Syntheses, John Wiley & Sons (1980), pp. 278-291.
Weinges, Chem Berichte, vol. 113, pp. 710-721 (1980).

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