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CuI/sodium picolinate-catalyzed direct arylation of α-substituted cyanoacetates takes place at 60°C in the presence of Cs 2 CO 3 and 4Å molecular sieve, affording 2-alkyl-2-arylcyanoacetates in good to excellent yields. Both electron-rich and electronic-deficient aryl iodides, and some functionalized α-substituted cyanoacetates are compatible with the reaction conditions, thereby allowing...
Donor–acceptor molecules containing thiophene chromophore with remarkably large Stokes shift (>210nm) have been found to exhibit strong and stable ECL emission via the singlet excited state without the addition of any co-reactant or a second compound.
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