期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 88, 期 19, 页码 13967-13976出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.3c01526
关键词
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A novel and efficient reaction method using NaOH as a base has been developed for the tandem S(N)2 nucleophilic substitution/Dieckmann condensation reaction of a-iodomethyl phosphine oxide with methyl thiosalicylate derivatives. This method enables the rapid synthesis of 2-phosphonyl-3-hydroxybenzo[b]thiophene derivatives under simple conditions. Furthermore, several new phosphonyl-substituted benzo[b]thiophenes were obtained from the resultant 2-phosphonyl-3-hydroxybenzo[b]thiophenes.
A novel and efficient tandem S(N)2 nucleophilic substitution/Dieckmann condensation reaction of a-iodomethyl phosphine oxide with methyl thiosalicylate derivatives has been developed by using NaOH as a base, which enables the expeditious synthesis of 2-phosphonyl-3-hydroxybenzo[b]thiophene derivatives in moderate to high yields under simple conditions. This research provides not only a convenient method for the functionalization of benzo[b]thiophenes at the 2-position and 3-position but also new organophosphorus molecules. Furthermore, several new phosphonyl-substituted benzo[b]thiophenes were obtained from the resultant 2-phosphonyl-3-hydroxybenzo[b]thiophenes.
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