作者:Youjun Yang、Jorge O. Escobedo、Alexander Wong、Corin M. Schowalter、Michael C. Touchy、Lijuan Jiao、William E. Crowe、Frank R. Fronczek、Robert M. Strongin
DOI:10.1021/jo051002a
日期:2005.8.1
A facile synthetic route utilizing readily available reagents affords a series of regioisomerically pure xanthene dye derivatives. Advantages include relatively mild conditions and good to excellent yields. Nonpolar, highly crystalline intermediates are isolable by standard chromatographic techniques. The intermediates are in the requisite xanthene oxidation state, thus avoiding the need for relatively
The synthesis and photophysicalproperties of new dibenzo[b,i]fluorone dye frameworks (BX and FBX) are described. Both BX and FBX display nearinfrared sharp absorption and emission upon the addition of...