Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-10-20
1995-05-30
Chang, Celia
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546216, 546223, 546224, 546233, C07D22120, C07D21140
Patent
active
054202809
ABSTRACT:
##STR1## Novel piperidin-4-spiro-oxiranes of formula (I) are provided which have application in the synthesis of various anilidopiperidine compounds. The novel compounds can be synthesised in a one pot reaction from 4-substituted piperidones and phenylsulphoxide or sulphone starting materials. Use of the novel compounds allows anilidopiperidines to be produced in a significantly reduced number of stages than with previously known methods.
REFERENCES:
McOmis "Protective Groups in Organic Chemistry" Plenum Press, p. 61 (1974).
Satoh et al ".alpha.-.beta.-Epoxy Sufoxides as Intermediates in Organic Synthesis II" Chem. Soc. Japan, 58 2849-54 (1985) (cited on PCT Search Report).
Satoh et al "A Novel Approach to Synthesis of Chiral Epoxides" Tetra. Lett. 29 2851-2854 (1988).
Satoh et al "A Novel Method of Annulation of .alpha..beta.-Epoxid Sulfoxide" Chem. Lett Japan, 1949-50 (1987).
Satoh et al "A Novel Synthesis of 2 Acrylic Ether . . . " Bull. Chem. Soc. Jpn. 61 2109-2115 (1988).
Black Robin M.
Brewster Keith
Chang Celia
The Secretary of State for Defence in Her Britannic Majesty's Go
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