Controlled dealkylation by BBr3: Efficient synthesis of para-alkoxy-phenols
Controlled dealkylation of dialkyl-aryl-ethers by substoichiometric BBr3 has been developed as a general tool for the differentiation of the oxygen functions in hydroquinone derivatives. The reaction proceeds smoothly at rt either on linear or branched al
Synthesis of double-conjugated-segment molecules and their application as ultra-broad two-photon-absorption optical limiters
A series of novel double-conjugated-segment molecules, in which two conjugated segments are separated by an ether chain, were synthesized; these compounds provide a very broad two-photon absorption spectral range, which satisfies an urgent need in the optical limiting area.