Syntheses of 7-Substituted Anthra[2,3-b]thiophene Derivatives and Naphtho[2,3-b:6,7-b’]dithiophene
2018
Al-jumaili, Mustafa A. | Woodward, Simon
7-R-Anthra[2,3-b]thiophene derivatives (1, R = H, Me, i-Pr, or MeO) are prepared in three steps (in average overall yield >50%) starting from (E)-4-RC₆H₄CH₂(HOCH₂)C═CI(CH₂OH). The latter are commercial or readily prepared from 2-butyne-1,4-diol and ArCH₂Cl (both costing <1 cent/mmol) at 10 g scales. These allow for the selective formation of (otherwise unattainable) higher solubility 7-derivatives. Similar methods allow for the preparation of naphtho[2,3-b:6,7-b’]dithiophene 2 using equally low-cost starting materials.
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书目信息
Journal of organic chemistry
卷
83
期
18
页码
11437
- 11445
ISSN
1520-6904
出版者
American Chemical Society
其它主题
Thiophene
语言
英语
类型
Journal Article; Text
2024-02-27
MODS