Regioselective synthesis of 2-amino-isophthalonitriles through a ring transformation strategy

Tetrahedron ◽  
2007 ◽  
Vol 63 (45) ◽  
pp. 10971-10978 ◽  
Author(s):  
Fateh V. Singh ◽  
Vijay Kumar ◽  
Brijesh Kumar ◽  
Atul Goel
Keyword(s):  
Regioselective Synthesis ◽  
Ring Transformation ◽  
Transformation Strategy

scholarly journals Synthesis of Decaarylanthracene with Nine Different Substituents

2020 ◽  
Author(s):  
Takashi Asako ◽  
Shin Suzuki ◽  
Shuhei Tanaka ◽  
Eisuke Ota ◽  
Junichiro Yamaguchi
Keyword(s):  
Ring Transformation ◽  
Naphthalene Derivative ◽  
Transformation Strategy

A synthesis of decaarylanthracene with nine different substituents has been accomplished by a coupling/ring-transformation strategy. The oxidation of tetraarylthiophenes with four different substituents to the corresponding thiophene <i>S</i>-oxides, and a [4+2] cycloaddition with a double benzyne precursor afforded a multiply arylated naphthalene derivative. Subsequently, the naphthalene derivative was converted into a naphthalyne, and then a [4+2] cycloaddition of another thiophene <i>S</i>-oxide provided decaarylanthracenes with nine different aryl groups.

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