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Structure of the twofold addition product tetramethyl 6-diethylamino-3,7a,10,11b-tetrahydro-7H-dipyridazino[4,5-b:4',5'-d]azepine-1,4,8,11-tetracarboxylate, C22H28N6O8

✍ Scribed by Bryce, M. R. ;Dauter, Z. ;Kämpchen, T. ;Reynolds, C. D. ;Seitz, G.

Book ID
114502553
Publisher
International Union of Crystallography
Year
1984
Tongue
English
Weight
435 KB
Volume
40
Category
Article
ISSN
0108-2701

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## Abstract The molecular structures of the title compounds 3 and 5 were investigated by NMR and X‐ray structural methods. The NMR results suggest two equivalent halves for both molecules. The X‐ray study shows an approximate mirror plane for 3 and an approximate twofold axis for a significant port