Russian Chemical Bulletin p. 1904 - 1908 (1997)
Update date:2022-08-11
Topics:
Galin
Lakeev
Tolstikov
The intramolecular cyclization of keto-stabilized sulfonium ylides obtained from β-alanine and containing various imide fragments was studied. On heating in toluene in the presence of PhCO2H, ylides containing a phthalimide moiety are converted into indolizidine-2,6-dione derivatives, whereas those incorporating a 4-methyl-1,2,3,6-tetrahydrophthalimide or pyrrolidine-2,5-dione moieties do not undergo cyclization.
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