Alkenylzirconium reagents useful for prostaglandin analog synthe

Details Alkenylzirconium reagents useful for prostaglandin analog synthe Alkenylzirconium reagents useful for prostaglandin analog synthe

1981-12-16

1983-11-15

Sneed, Helen M. S.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

549356, C07F 700

Patent

active

044155018

ABSTRACT:
Alkenylzirconium reagents of the general structural formula IX, ##STR1## are useful in the syntheses of prostaglandin analogs. In the preceding structural formula J is bromo or chloro, R.sub.1 is hydrogen, methyl, ethyl, vinyl, 1-propenyl, or cyclopropyl, R.sub.4 is alkyl of 2-7 carbon atoms, and R.sub.3 is a protecting group such as tetrahydropyranyl, 1-ethoxyethyl, or C.sub.1 -C.sub.4 -trialkylsilyl.

REFERENCES:
patent: 4125567 (1978-11-01), Kidwell et al.
patent: 4147709 (1979-04-01), Lynch
patent: 4151186 (1979-04-01), Kidwell et al.
Hart et al., JACS 96, 8115-8116, (1974).
J. Schwartz, et al., J. Amer. Chem. Soc., 102, 1333, (1980).

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