Photoproducts form irradiation of lumisantonin in aprotic medium
作者:Michael H. Fisch、John H. Richards
DOI:10.1021/ja01008a027
日期:1968.3
Irradiation of lumisantonin in aproticmedium yields mazdasantonin, II, and double bond isomer of pyrolumisantonin, V. In addition, other monomeric photoproducts are isolated as well as a substance believed to be a dimer of mazdasantonin. Structural possibilities for these are discussed.
在非质子介质中辐照 lumisantonin 会产生 mazdasantonin II 和焦荧光素的双键异构体 V。此外,分离出其他单体光产物以及一种被认为是 mazdasantonin 二聚体的物质。讨论了这些的结构可能性。
Deciphering molecular structures: NMR spectroscopy and quantum mechanical insights of halogenated 4<i>H</i>‐Chromenediones
作者:Lucas M. O. S. Martins、Francielly Thais Souto、Thomas R. Hoye、Elson S. Alvarenga
DOI:10.1002/mrc.5445
日期:——
9b-hexahydro-4H-furo[2,3-f]chromene-2,7-dione (12b). The diastereoselectivities of the reactions were explained based on products and intermediates formation energy calculated using B3LYP/6-31 + G(d,p) as the level of theory. Structures 11b and 12b were identified as the thermodynamic and kinetic products of the reaction among all candidates. Consequently, the strategy utilized in this study is robust and