volume 30, issue 42, Pno-no 2010
DOI: 10.1002/chin.199942137
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R. T. Pardasani, P. Pardasani, R. Ghosh, D. Sherry, T. Mukherjee

Abstract: Synthetic and Spectral Studies of Novel Spiro {Bicyclo[3,3,0]octene-8,3'(2'H)-indol}-2'-ones Obtained from Indol-2,3-diones.-Reaction of indol-2,3-dione derivatives (I) with the secondary cyclic amino acid (II) affords thiazolo-oxazolidinones (III) via an intermediate iminium species.In the presence of an appropriate dipolarophile such as phenylacetylene, this azomethine ylide intermediate undergoes loss of CO 2 followed by 1,3-dipolar cycloaddition furnishing the novel spiro compounds (V). -(PARDASANI, R. T.…

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