[EN] METHODS FOR THE SYNTHESIS OF HETEROATOM CONTAINING POLYCYCLIC AROMATIC HYDROCARBONS<br/>[FR] PROCÉDÉS DE SYNTHÈSE D'HYDROCARBURES AROMATIQUES POLYCYCLIQUES CONTENANT DES HÉTÉROATOMES
申请人:UNIV CALIFORNIA
公开号:WO2020041369A1
公开(公告)日:2020-02-27
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.
Cycloaddition Cascades of Strained Alkynes and Oxadiazinones
作者:Melissa Ramirez、Evan R. Darzi、Joyann S. Donaldson、Kendall N. Houk、Neil K. Garg
DOI:10.1002/anie.202105244
日期:2021.8.9
alkynes to give polycyclic aromatic hydrocarbons (PAHs). The reaction proceeds by way of a pericyclic reaction cascade and leads to the formation of four new carbon−carbon bonds. Using M06-2X DFT calculations, we interrogate several mechanistic aspects of the reaction, such as why the use of non-aromatic strained alkynes can be used to access unsymmetrical PAHs, whereas the use of arynes in the methodology
An unusual formation of 1<i>H-s</i>-triazole<i>N</i>-imines from reactions of 1,3,4-oxadiazin-6-ones and nitrilimines
作者:Nikolaos G. Argyropoulos、Ecaterini Corobili、Ecaterini P. Raptopoulou
DOI:10.1002/jhet.5570330310
日期:1996.5
polysubstituted 1H-S-triazole N-imine derivatives is described from reactions of the readily available 1,3,4-oxadiadin-6-one derivatives and nitrilimines. Besides an hydrazide derivative of phenylglyoxylic acid is also formed. Both adducts were characterised by X-raycrystalstructure analysis.
Modular Synthesis of Unsymmetrical Doubly-ring-fused Benzene Derivatives Based on a Sequential Ring Construction Strategy Using Oxadiazinones as a Platform Molecule
An efficient benzene ring construction method using oxadiazinones as a platform molecule has been developed. Sequential reactions of oxadiazinones with cycloalkynes and arynes afforded partially re...