Collect. Czech. Chem. Commun.
1984, 49, 2502-2508
https://doi.org/10.1135/cccc19842502
Spatial arrangement of 1-(2-furyl)-2-methoxycarbonyl-4-(5-X-2-furyl)butadienes
Vladimír Žvak, Miloslava Dandárová, Jaroslav Kováč and Katarína Špirková
Department of Organic Chemistry, Slovak Institute of Technology, 812 37 Bratislava
Abstract
The *1( NMR spectrometry of 1-(2-furyl)-2-methoxycarbonyl-4-(5-X-2-furyl)butadienes showed the double bonds of the butadiene backbone to have E, E, or E, Z configurations and s-trans conformation. The unsubstituted furan ring is in an s-cis conformation with respect to the double bond of the butadiene chain. The E, E isomers and the E, Z isomers have the substituted furan ring out of the butadiene backbone plane.
