Structural characterization of new 2-aryl-5-phenyl-1,3,4-oxadiazin-6-ones and their N-aroylhydrazone precursors
摘要:
A series of novel 2,5-disubstituted 1,3,4-oxadiazin-6-ones and their N-aroylhydrazone precursors were synthesized and characterized by NMR and UV-Vis spectroscopy. The electronic properties of 2-aryl-5phenyl-1,3,4-oxadiazin-6-ones are mainly dependent on the 2-aryl substituent and their absorption maxima exhibit a red shift in dichloromethane. Single crystal X-ray diffraction on four acylhydrazones indicated the isolation of isomer with Z configuration of the C=N double bond. Intermolecular interactions through strong H-bonding and C-H...pi contacts serve to link the molecules into a three-dimensional supramolecular network. (C) 2013 Elsevier B.V. All rights reserved.
FARINA, C.;PIFFERI, G.;NASI, F.;PINZA, M., J. HETEROCYCL. CHEM., 1983, 20, N 4, 979-982
作者:FARINA, C.、PIFFERI, G.、NASI, F.、PINZA, M.
DOI:——
日期:——
CHRISTL, M.;LANZENDOERFER, U.;HEGMANN, J.;PETERS, K.;PETERS, E. -M.;SCHNE+, CHEM. BER., 1985, 118, N 7, 2940-2973
作者:CHRISTL, M.、LANZENDOERFER, U.、HEGMANN, J.、PETERS, K.、PETERS, E. -M.、SCHNE+
DOI:——
日期:——
Methods for the Synthesis of Heteroatom Containing Polycyclic Aromatic Hydrocarbons
申请人:The Regents of the University of California
公开号:US20210323987A1
公开(公告)日:2021-10-21
Methods for the synthesis of polycyclic aromatic hydrocarbons and synthesis platforms for performing such syntheses are provided. Methods and platforms are provided that allow for the synthesis of aza-polycyclic aromatic hydrocarbons by an expedient ring assembly. Methods and platforms allow for a modular approach to synthesis that provide multiple new C—C bonds in sequential pericyclic reactions, thus giving access to compounds with multiple axes of substitution.