Synthesis of bis(4-hydroxyphenyl) selenide and epoxide and acrylate monomers on this basis
摘要:
Reaction of SeCl2 with PhOH has afforded bis(4-hydroxyphenyl) selenide, whose treatment with epichlorohydrin provides a diepoxide that is transformed in bisacrylate and further in tetraacrylate via opening of the epoxide rings with acrylic acid followed by acylation with acryloyl chloride.
Microwave-assisted Cu2O-catalyzed one-pot synthesis of symmetrical diaryl selenides from elemental selenium
摘要:
A novel and simple microwave-assisted one-pot protocol to prepare symmetrical diary] selenides has been developed. A cross-coupling reaction between aryl iodide and elemental selenium takes place in the presence of KOH and a catalytic amount of Cu2O/NH2CH2CH2NH2, leading to C-Se bond formation. The reactions are highly efficient with a reaction time of 1 h under microwave irradiation and yields from 50% to 90%. Published by Elsevier Ltd.