Catalytic enantioselective synthesis of a spriofused azetidinone

Details Catalytic enantioselective synthesis of a spriofused azetidinone Catalytic enantioselective synthesis of a spriofused azetidinone

1995-05-25

1997-07-15

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

540214, 540342, 540333, C07D20512, C07D31772, C07D31908, C07F 718

Patent

active

056484844

ABSTRACT:
A process for producing a compound of the formula ##STR1## comprises the following sequence of steps: ##STR2## wherein the various radicals are as defined in the specification.

REFERENCES:
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Sanchez et al., Synthetic Communications, 15(2), 141-149 (1985).
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Kiyooka et al., Tetrahedron Letters, vol. 33, No. 34, pp. 4927-4930 (1992).
Corey et al., J. Am. Chem. Soc. 1991, 113, pp. 8966-8967 (plus supplementary material).
Shirai, Tet. Letters 29, 6461 (1988).
"Concise Encyclopedia Chemistry" (1994), p. 59.

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