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A SYNTHESIS OF BENZO[b]NAPHTHO[2,3-d]THIOPHENE DERIVATIVES via BENZO[b]THIOPHENE-2,3-QUINODIMETHANE INTERMEDIATES A SYNTHESIS OF BENZO[b]NAPHTHO[2,3-d]THIOPHENE DERIVATIVES via BENZO[b]THIOPHENE-2,3-QUINODIMETHANE INTERMEDIATES / 28506 / 46454 / 46455 日比野, 俐 28507 / 46456 P(論文) 2-Methyl- and 2-ethyl-3-(α-aryl)hydroxymethylbenzo[b]-thiophene (6a)-(6d) were heated at 400℃ for 5 min to yield the corresponding benzo[b]naphtho[2,3-d]thiophene derivatives (9a)-(9d), respectively. In a similar fashion, the alcohol (8a) gave 5-methylbenzo[b]naphtho[2,3-d]thiophene (9e) and 5,10-dimethyl derivative (3). 8-Methoxy 5-methyl- (9f) and 5-phenyl derivative (9g) were obtained from the corresponding alcohols (8b) and (8c), respectively. departmental bulletin paper 1982 application/pdf 福山大学薬学部研究年報 1 40 44 Annual report of the Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University AN10064550 https://fukuyama-u.repo.nii.ac.jp/record/6381/files/KJ00005783875.pdf https://fukuyama-u.repo.nii.ac.jp/records/6381 eng