80202-77-3Relevant articles and documents
Micellar effects upon reactions of the 2,2',4,4',4''-pentamethoxytrityl cation with nucleophiles
Bunton, Clifford A.,Cuenca, Angela
, p. 1179 - 1183 (1986)
Cationic micelles of cetyltrimethylammonium chloride and bromide (CTACl and CTABr) speed attack of water upon the 2,2',4,4',4''-pentamethoxytrityl cation by a factor fo ca. 5.The first-order rate constant in water is 5.51 s-1 at 25.0 deg C.Anionic micelles of sodium dodecyl sulfate (SDS) have little effect on this reaction, but they strongly inhibit attack of OH-.In water, second-order rate constants for attack of OH-, CN-, and N3- are, respectively, 235, 177, and 2.8E5 M-1s-1.Rate constants of reaction in CTACl go through maxima with increasing and analysis of the data shows that second-order rate constants at the micellar surface are similar to those in water.
A convenient preparation of xanthene dyes
Yang, Youjun,Escobedo, Jorge O.,Wong, Alexander,Schowalter, Corin M.,Touchy, Michael C.,Jiao, Lijuan,Crowe, William E.,Fronczek, Frank R.,Strongin, Robert M.
, p. 6907 - 6912 (2007/10/03)
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 i
