Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 88, Issue 16, Pages 11411-11423Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.2c02997
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A new and convenient method for synthesizing aryl-substituted naphtho[2,1-a]azulenes by combining Suzuki-Miyaura, Sonogashira, and cycloisomerization reactions is reported. This methodology was used to synthesize previously unknown azuleno[1,2-h]quinolines, cyclohepta[1,2]indeno[4,5-b]thiophenes, and cyclohepta[1,2]indeno[4,5-c]thiophenes. The impact of different fused heterocyclic rings on the photophysical and electrochemical properties of these azulene derivatives was studied using experimental and theoretical methods, providing a rationale for the preparation of novel azulene derivatives with improved properties for organic material applications.
A new and convenient synthesis of aryl-substituted naphtho[2,1-a]azulenes by the combination of Suzuki-Miyaura,Sonogashira, and cycloisomerization reactions is reported. The methodologywas applied to the synthesis of hitherto unknown azuleno[1,2-h]quinolines, cyclohepta[1,2]indeno[4,5-b]thiophenes, and cyclohepta[1,2]indeno[4,5-c]thiophenes.The impact of different fused-heterocyclic rings on the photophysicaland electrochemical properties of these azulene derivatives was studiedby experimental and theoretical methods and hence provides a rationalefor the preparation of novel azulene derivatives with improved propertiesfor application as organic materials.
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