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Structure of 7,8-dihydro-4,7,7-trimethyl-2H,5H-pyrano[4,3-b]pyran-2,5-dione

✍ Scribed by Charles, N. G. ;Griffith, E. A. H. ;Murtiashaw, C. W. ;Burke, S. D. ;Amma, E. L.

Book ID: 114528775
Publisher: International Union of Crystallography
Year: 1982
Weight: 318 KB
Volume: 38
Category: Article
ISSN: 0567-7408
DOI: 10.1107/s0567740882009170

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## Abstract The reactions of 3‐acetoacetyl‐7‐methyl‐2__H__,5__H__‐pyrano[4,3‐__b__]pyran‐2,5‐dione with aromatic amines afforded 3‐(arylaminomethylene)‐6‐methylpyran‐2,4‐dione. Our results allowed the correction of the structures reported in the literature for the products of these reactions.