(Z)- and (E)-Arylidene-1,3-dihydroindol-2-ones: configuration, conformation, and infrared carbonyl stretching frequencies
作者:Andreina Corsico Coda、Anna Gamba Invernizzi、Pier Paolo Righetti、Gianfranco Tacconi、Giuseppina Gatti
DOI:10.1039/p29840000615
日期:——
The configuration and conformation of both (Z)- and (E)-arylidene-1,3-dihydroindol-2-ones were investigated. In the solid state the Z-isomer is planar whereas the E-isomer has the aryl group significantly twisted, as shown by two X-ray structures. A linear correlation was found between (co) and the σp+ of the substituents and this allows the conformation in solution and the degree of conjugation of