Porous organic polymer with <i>in situ</i> generated palladium nanoparticles as a phase-transfer catalyst for Sonogashira cross-coupling reaction in water
Pd(PPh3)4 catalysed in situ one-pot Suzuki cross-coupling reaction between imidazolium attached dibromobenzene and 1,3,5-tri(4-pinacholatoborolanephenyl)benzene. Besides the high thermal and chemical stability, the obtained Pd@PTC-POP can be used as a highly active and reusable phase-transfer solid catalyst to promote the Sonogashira coupling reaction in water. The obtained results indicate that the Pd@PTC-POP
efficiently using a rhodium catalyst. The broad functional-group tolerance and mild conditions of the method have allowed for the two-step decarboxylative borylation of a wide range of aromatic carboxylicacids, including commercially available drugs.
Star-shaped aromatic derivatives of bicyclo[3.3.1]nonane with predetermined chirality were synthesized by employing the Suzuki and Sonogashira reactions. The C 3 -symmetric trifunctional aromatic derivatives based on the lateral bicyclo[3.3.1]nonene moiety possess unique molecular structures. The chiroptical properties of the star-shaped compounds and the corresponding monomeric derivatives were studied
Multiexcitonic Triplet Pair Generation in Oligoacene Dendrimers as Amorphous Solid‐State Miniatures
作者:Juno Kim、Hao Ting Teo、Yongseok Hong、Juwon Oh、Hyungjun Kim、Chunyan Chi、Dongho Kim
DOI:10.1002/anie.202008533
日期:2020.11.16
fission in organic semiconducting materials has attracted great attention for the potential application in photovoltaic devices. Research interests have been concentrated on identifying working mechanisms of coherent SF processes in crystalline solids as ultrafast SF is hailed for efficient multiexciton generation. However, as long lifetime of multiexcitonic triplet pair in amorphoussolids facilitates
Highly stable permanentlyinterlockedaryleneethynylene molecular cages were synthesized from simple triyne monomers using dynamicalkynemetathesis. The interlocked complexes are predominantly formed in the reaction solution in the absence of any recognition motif and were isolated in a pure form using column chromatography. This study is the first example of the thermodynamically controlled solution‐phase