Abstract
Triacetonamine reacts with dimethyl acetylenedicarboxylate in MeOH to give an ordinary adduct, aminomaleate 2, while in aprotic solvents quinuclidine 1 is formed under mild conditions and in high yield; its structure is confirmed by spectroscopic methods as well as X-ray diffraction analysis. A mechanism of autoassembling is proposed, and chemical transformations of 1 with retention of quinuclidine nucleus are studied.
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