Photorelease of Incarcerated Guests in Aqueous Solution with Phenacyl Esters as the Trigger
作者:Pradeepkumar Jagadesan、José P. Da Silva、Richard S. Givens、V. Ramamurthy
DOI:10.1021/acs.orglett.5b00252
日期:2015.3.6
We report the clean, efficient photorelease of a series of carboxylic acids embedded in octa acid (OA) host and protected by a p-hydroxyphenacyl cage. A key role is played by the cage by providing hydrophobicity for entry into the OA enclosure and yet readily removable as a photoactivated protecting group for release from the host. The rapid photo-Favorskii rearrangement of the departing chromophore
我们报告了嵌入在八酸(OA)主机中并受对羟基苯甲酰基笼保护的一系列羧酸的清洁,有效的光释放。笼子起着关键作用,它提供疏水性以进入OA外壳,并且很容易作为光活化保护基团移出并从宿主中释放出来。离去的生色团的快速光-Favorskii重排不会与宿主OA反应,但会减少OA含量的疏水性,从而使其易于释放到溶剂中。