The present invention concerns functionalized photoreactive compounds of formula (I), that are particularly useful in materials for the alignment of liquid crystals. Due to the adjunction of an electron withdrawing group to specific molecular systems bearing an unsaturation directly attached to two unsaturated ring systems, exceptionally high photosensitivities, excellent alignment properties as well as good mechanical robustness could be achieved in materials comprising said functionalized photoreactive compounds of the invention.
Enolate-mediated 1,3-dipolar cycloaddition reaction of β-functionalized ketones with nitrile oxides: direct access to 3,4,5-trisubstituted isoxazoles
作者:Xiao Zhou、Xianhong Xu、Zhenyan Shi、Kun Liu、Hua Gao、Wenjun Li
DOI:10.1039/c6ob00717a
日期:——
TMG-catalyzed [3 + 2] organocatalytic 1,3-dipolarcycloaddition reactions of β-functionalized ketones with nitrileoxides have been developed. This strategy could generate 3,4,5-trisubstituted isoxazoles in high yields and regioselectivities.