Stability of Boronic Esters to Hydrolysis: A Comparative Study
作者:Raffaella Bernardini、Ambrogio Oliva、Alessandro Paganelli、Ernesto Menta、Mario Grugni、Sergio De Munari、Luca Goldoni
DOI:10.1246/cl.2009.750
日期:2009.7.5
Boronic esters are key intermediates in the synthesis of biologically active compounds such as thrombin and proteasome inhibitors. However, they have low hydrolytic stability both during synthetic reactions and in biological media. We report the preparation of several boronic esters and a comparative study of their stability to hydrolysis vs. the corresponding pinanediol boronic esters, which are among the most hydrolytically stable. We discovered that the boronic esters derived from (1,1′-bicyclohexyl)-1,1′-diol are the most stable among those examined.
Soft Optical Devices from Self-Healing Gels Formed by Oil and Sugar-Based Organogelators
作者:Adiyala Vidyasagar、Kishor Handore、Kana M. Sureshan
DOI:10.1002/anie.201103584
日期:2011.8.22
and low: Two sugar‐based supergelators can congeal oils to produce highly transparent gels with glass‐like refractive indices showing low UV transmittance and high visible transmittance and remarkable self‐healing properties. This unique blend of properties can be exploited to make softopticaldevicesfrom these gels.