The synthesis of Sulfur‐hybridized pyracylenes (SHPs) was reported. Quantitatively debromination and phenyl ring‐shift‐mediated rearrangement induced by the substituents were observed. A retrosynthetic method was successfully adopted to confirm the unexpected reaction results in rearrangement of Scholl reaction.
Palladium(II) octaalkoxy- and octaphenoxyphthalocyanines: Synthesis and evaluation as catalysts in the Sonogashira reaction
作者:Yana B. Platonova、Alexander N. Volov、Larisa G. Tomilova
DOI:10.1016/j.jcat.2019.04.003
日期:2019.5
octaphenoxysubstituted palladium phthalocyanines were used as a new family members of cross-coupling catalysts in the Sonogashirareaction. For the first time it was shown that terminal alkynes reacted mildly with p-substituted aryl bromides in gently conditions at room temperature under Pd and Cu-cocatalysis to give the corresponding phenylacetylenes. This protocol represents the use of palladium phthalocyanines
Oxidative fusion reactions of ortho‐phenylene‐bridged cyclic hexapyrroles and hexathiophenes furnished novel closed helicenes in a selective manner. X‐Ray diffraction analysis unambiguously revealed the structures to be a closed pentaaza[9]helicene, the longest azahelicene reported so far, and an unexpected double‐helical structure of hexathia[9]/[5]helicene, whose formation was assumed to result from
Designing photoCORMs: A new photo-induced CO-releasingmolecule has been developed by using tricarbonyl rhenium(I) phthalocyanine. The distorted structures of the Re phthalocyanine complexes allowed their ultrafast excited-state dynamics to be analysed by spin-orbit coupling.
设计 photoCORMs:一种新的光诱导 CO 释放分子已通过使用三羰基铼 (I) 酞菁开发。Re 酞菁配合物的扭曲结构允许通过自旋轨道耦合分析它们的超快激发态动力学。