211317-19-0Relevant articles and documents
Synthesis, structure, and extraction behavior of 4,5′,4″,5?-tetra-tert-butyltetrabenzo-24-crown-8
Levitskaia, Tatiana G.,Sachleben, Richard A.,Bryan, Jeffrey C.,Moyer, Bruce A.
, p. 808 - 814 (2001)
Isomerically pure 4,5′,4″,5?-tetra-tert-butyltetrabenzo-24-crown-8 was synthesized by a route that eliminates any need for isomer separation. Its structure was determined using single crystal X-ray diffraction methods. Since the observed saddle-shaped con
Mono- and diformylation of 4-substituted phenols: A new application of the duff reaction
Lindoy, Leonard F.,Meehan, George V.,Svenstrup, Niels
, p. 1029 - 1032 (2007/10/03)
Careful control of the reaction conditions in a modified Duff reaction using anhydrous trifluoroacetic acid as the solvent enables the selective synthesis of either 4-substituted 2-formylphenols (5-substituted salicylaldehydes) or 4-substituted 2,6-diformylphenols in one step starting from commercially available 4-substituted phenols in moderate to good yield.