Crystal structure of 4,10-dimeth-oxy-13-methyl-6H,12H-6,12-epimino-dibenzo[b,f][1,5]dioxocine.
The title compound, C17H17NO4, lacks crystallographic symmetry with one mol-ecule per asymmetric unit. The mol-ecule exists in a folded butterfly-like conformation; the benzene rings form a dihedral angle of 84.72 (7)°. The central eight-membered imino-bridged dioxocin ring adopts a twisted-boat conformation. In the crystal, inversion-related mol-ecules are linked by pairs of weak C-H⋯O hydrogen bonds, forming double-stranded chains parallel to theaaxis.
Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine.
Katerina V
KV
Kasyanova
Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine.
Vladimir N
VN
Kokozay
Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine.
Elena A
EA
Buvaylo
Department of Chemistry, Taras Shevchenko National University of Kyiv, 64/13 Volodymyrska Street, Kyiv 01601, Ukraine.
Olga Yu
OY
Vassilyeva
School of Molecular Sciences, M310, University of Western Australia, Perth, WA 6009, Australia.
Brian W
https://orcid.org/0000-0002-1515-6636
BW
Skelton
Schiff base; [1,5]dioxocin ring; crystal structure; methyl­amine hydro­chloride; o-vanillin; self-condensation; twisted-boat conformation