✦ LIBER ✦

6,9-Dimethoxy-2,13-diaza[4]paracyclo[4](3,5)-pyridinophane-1,14-dione, C19H21N3O4, and 19-benzyl-16,19-dihydro-2,13-diaza[4]paracyclo[4](3,5)pyridinophane-1,14-dione, C24H25N3O2

✍ Scribed by van Herk, A. M. ;Goubitz, K. ;Overbeek, A. R. ;Stam, C. H.

Book ID: 114528197
Publisher: International Union of Crystallography
Year: 1982
Weight: 415 KB
Volume: 38
Category: Article
ISSN: 0567-7408
DOI: 10.1107/s0567740882003252

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

6,9-Dimethoxy-2,13-diaza[4]paracyclo[4](

6,9-Dimethoxy-2,13-diaza[4]paracyclo[4](3,5)-pyridinophane-1,14-dione, C19H21N3O4, and 19-benzyl-16,19-dihydro-2,13-diaza[4]paracyclo[4](3,5)pyridinophane-1,14-dione, C24H25N3O2; erratum

✍ van Herk, A. M. ;Goubitz, K. ;Overbeek, A. R. ;Stam, C. H. 📂 Article 📅 1982 🏛 International Union of Crystallography ⚖ 104 KB

(3R,6R)-3-Benzyl-8-thia-1,4-diazabicyclo

(3R,6R)-3-Benzyl-8-thia-1,4-diazabicyclo[4.3.0]nonane-2,5-dione, C13H14N2O2S

✍ Van Poucke, M. ;Geise, H. J. ;Lenstra, A. T. H. 📂 Article 📅 1983 🏛 International Union of Crystallography 🌐 English ⚖ 417 KB

1-(2,4-Dimethoxy-1,3,5-triazin-6-yloxy)p

1-(2,4-Dimethoxy-1,3,5-triazin-6-yloxy)pyrrolidine-2,5-dione, C9H10N4O5

✍ Główka, M. L. ;Sobańska, A. W. 📂 Article 📅 1994 🏛 International Union of Crystallography 🌐 English ⚖ 330 KB

Steroid intermediates: (1) 3,4-dinor-2,5

Steroid intermediates: (1) 3,4-dinor-2,5-seco-9α-estrane-1,15,17-trione, C16H22O3; (2) D-homo-4-norestr-3(5)-ene-2,17-dione, C18H24O2; and (3) 1,2,3,4-tetranorestr-9-ene-5,17-dione, C14H18O2

✍ Schlemper, E. O. ;Nassim, B. ;Crabbé, P. 📂 Article 📅 1984 🏛 International Union of Crystallography 🌐 English ⚖ 420 KB

1,2,13,14,14a,15,16,17,18,18a-Decahydro-

1,2,13,14,14a,15,16,17,18,18a-Decahydro-1,14-methano-4H,6H,8H-1,3,5-oxadiazino[3′,4′:3,3a]benzimidazo[1,7a-b][2,4]benzodiazepine-6,19-dione

✍ She, Nengfang ;Xi, Hailing 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 520 KB

In the title compound, C~18~H~20~N~4~O~3~, a glycoluril derivative, the oxadiazinane six-membered ring displays a chair conformation and the bridgehead cyclohexane ring a boat conformation. In the crystal structure, intermolecular C—H...O hydrogen bonds may help to establish the packing.

Synthesis and X-Ray Structural Studies o

Synthesis and X-Ray Structural Studies of ‘4,7,13-Trioxa-1,10-diaza-5,6-benzocyclopentadecane-2,9-dione’ ( = 5,6,9,10-Tetrahydro-2H, 8H-benzo[b][1,4,10]trioxa[7,13]diazacyclopentadecene-311(4H,12H)-dione) and ‘4,7,13,16-Tetraoxa-1,10-diaza-5,6-benzocyclooctadecane-2,9-dione’ ( = 5,6,8,9,12,13-Hexahydro-2H,11H-benzo[b][1,4,10,13]tetraoxa- [7,16]diazacyclooctadecene-3,14(4H, 15H)-dione)

✍ Przemyslaw Gluziński; Janusz Jurczak; Janusz W. Krajewski; Piotr Sałański; Tomas 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 German ⚖ 306 KB 👁 1 views

## 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