A new short and reasonably efficient synthesis of N-(2-ethylhexyl)-2,7-diiodocarbazole is presented. 4,4'-Diiodobiphenyl was nitrated and the resulting 4,4'-diiodo-2-nitrobiphenyl was converted via Freeman's modification...
A simple one-pot conversion of carboxylic acids to carbamates is achieved by propylphosphonic anhydride (T3P (R)) in combination with azidotrimethylsilane and an alcohol via the Curtius rearrangement. Besides diverse pri...
Synthesis of the C1-C11 tetrahydropyran core unit of (+)-zincophorin using a desymmetrization strategy is reported. Horner-Wadsworth-Emmons (HWE) and Mitsunobu cyclization reactions are the key transformations.
A simple H+-catalysed cyclisation of acetylenic amines for the synthesis of pyrrolocoumarins and pyrroloquinolones under conventional heating or microwave irradiation has been achieved. The reaction requires inexpensive ...
Coumarin-labeled thioesters are efficiently prepared from biological thiols using N-coumarin-3-carbonyl benzotriazoles. Absorption (lambda(abs)), fluorescence (lambda(em)) wavelength maxima and quantum yields (phi) for t...