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Abstract
42‐ and 46‐Membered phosphorus‐based macrocycles were obtained in a [2+2] condensation of PhP(O)[N(Me)NH2]2 with dialdehydes. These macrocycles were isolated in a pure form after preparative thin layer chromatography and were characterized by multinuclear NMR and mass spectroscopy. The FAB mass spectra of these macrocycles revealed parent ion (M+1) peaks in good intensity.
Acknowledgments
Dedicated to Prof. Dr. H.W. Roesky in recognition of his outstanding contributions to Inorganic and Organometallic Chemistry.
We thank the Department of Science and Technology, India and the Council of Scientific and Industrial Research, India for financial support. R. A. thanks IIT Kanpur for financial assistance. B. M. P. thanks the Council of Scientific and Industrial Research for a Senior Research Fellowship.