227-86-1Relevant academic research and scientific papers
Studies on cavity shaped polycyclic thiaarenes: Short and efficient synthesis of 2,12-dimethylanthra[1,2-b][8,7-b]bisthiophene and anthra[1,2-b]thiophene
Kar, Gandhi K.,Haldar, Manas K.,Gupta, Susmita,Pan, Dipanjan,Ray, Jayanta K.
, p. 569 - 573 (2007/10/03)
A short, efficient and high yielding synthesis of anthra[1,2-b][8,7-b]bisthiophene (5) and anthra[1,2-b]thiophene (12) is described. Compound 5 has been synthesised by condensation of methyl thioglycolate with the bis-chloroaldehyde 1 to give the 2,10-dicarbomethoxyanthra[1,2-b][8,7-b]bisthiophene (2). Subsequent hydrolysis of the diester followed by decarboxylation of the resulting diacid 3 produces 4,5,7,8-tetrahydroanthra[1,2-b][8,7-b]bisthiophene (4) which is aromatized with DDQ to furnish compound 5. Following the similar sequence of reaction on the chloroaldehyde 8 anthra[1,2-b]thiophene (12) has been synthesised. Compound 5 on further methylation with n-BuLi and MeI results in the formation of the dimethyl derivative 6.
Synthesis of Anthrathiophenes and Benzonaphthothiophenes
Tominaga, Yoshinori,Lee, Milton L.,Castle, Raymond N.
, p. 967 - 972 (2007/10/02)
All isomers of the parent anthrathiophenes and benzonaphthothiophenes, namely anthrathiophene, anthrathiophene, anthrathiophene, benzonaphthothiophene, benzonaphthothiophene and benzonaphthothiophene were synthesized using a new procedure.
