Pure enantiomers of bicyclo[2.2.2]oct-5-en-2-ones, processes for

Details Pure enantiomers of bicyclo[2.2.2]oct-5-en-2-ones, processes for Pure enantiomers of bicyclo[2.2.2]oct-5-en-2-ones, processes for

1982-07-26

1984-06-12

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 49617

Patent

active

044543522

ABSTRACT:
New bicyclo[2.2.2]oct-5-en-2-ones of the formula Ia and Ib in the form of pure enantiomers and processes for preparing them are described. The compounds are used for the preparation of pure enantiomers of the formula V by sensitized photoreaction or of compounds of the formula VI by unsensitized photoreaction.

REFERENCES:
patent: 3914322 (1975-10-01), Chappell et al.
P. K. Freeman et al., J. Org. Chem., vol. 33, pp. 2211-2214, (Jun. 1968).
Richard P. Gregson et al., J.C.S. Chem. Comm., 1973, 598-599, "Stereo-Specific Total Synthesis of (.+-.)--.alpha.--Amorphene".
K. Mislow et al., J. Am. Chem. Soc., 84, 1956-1961, (May 20, 1962).
C. Carter et al., VIII, Iupac-Symposium on Photochemistry, Paper No. 9, 100-101, Jul. 1980.
I. Alfaro et al., Tetrahedron, vol. 30, 559-569 "Dihydroaromatic Compounds in the Diels-Alder Reaction-IV", (Permagon Press 1974).
S. Ranganathan et al., Synthesis, 1977, 289-296, "Ketene Equivalents".
Richard S. Givens et al., J. Am. Chem. Soc., 93, 3957-3962, (Aug. 11, 1971).

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