TY - JOUR
T1 - Preparation of 4,7-dibromobenzo[b]thiophene as a versatile building block and synthetic application to a bis(ethynylthienyl)oligoarene system
AU - Yamamoto, Takuya
AU - Katsuta, Hiroshi
AU - Toyota, Kozo
AU - Iwamoto, Takeaki
AU - Morita, Noboru
PY - 2012/5/28
Y1 - 2012/5/28
N2 - Benzo[b]thiophene, 4,7-dibromobenzo[b]thiophene, thieno[3,2-b]thiophene, and 3-bromothieno[3,2-b]thiophene were prepared by AuCl-catalyzed cyclization of (t-butylsulfanyl)(ethynyl)benzenes or (t-butylsulfanyl)(ethynyl)thiophenes. Several reactions of 4,7-dibromobenzo[b]thiophene were investigated, including metallation and cross coupling reactions.
AB - Benzo[b]thiophene, 4,7-dibromobenzo[b]thiophene, thieno[3,2-b]thiophene, and 3-bromothieno[3,2-b]thiophene were prepared by AuCl-catalyzed cyclization of (t-butylsulfanyl)(ethynyl)benzenes or (t-butylsulfanyl)(ethynyl)thiophenes. Several reactions of 4,7-dibromobenzo[b]thiophene were investigated, including metallation and cross coupling reactions.
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U2 - 10.1246/bcsj.20100345
DO - 10.1246/bcsj.20100345
M3 - Article
AN - SCOPUS:84861386931
SN - 0009-2673
VL - 85
SP - 613
EP - 623
JO - Bulletin of the Chemical Society of Japan
JF - Bulletin of the Chemical Society of Japan
IS - 5
ER -