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18162-48-6872-50-4Methylene ChloridenaphthaleneTHFTitanium Dioxide
3844-31-3

(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one] synthesis

6synthesis methods
Bicyclo[2.2.2]octa-2,5-diene-2-carboxylic acid, 3-(phenylsulfonyl)-, ethyl ester

80404-59-7
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(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]

3844-31-3
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-

Yield:-

Steps:

Multi-step reaction with 5 steps
1: 96 percent / NaH / tetrahydrofuran / 0 °C
2: LDA / tetrahydrofuran / -78 °C
3: H2SO4 / 1,2-dichloro-ethane / 20 °C
4: 75 percent / potassium ferricyanide / H2O; ethyl acetate / 20 °C
5: 100 percent / 0.17 h / 200 °C

References:

Uno, Hidemitsu;Moriyama, Kana;Ishikawa, Takayuki;Ono, Noboru;Yahiro, Hidenori [Tetrahedron Letters,2004,vol. 45,# 49,p. 9083 - 9086]

4H-1-Benzothiopyran-4-one, 2,3-dichloro-, 1-oxide

74695-54-8
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(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]

3844-31-3
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3-Hydroxybenzothiophene

520-72-9
65 suppliers
$274.00/1g

(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]

3844-31-3
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References
3-Hydroxy-1-benzothiophene-2-carboxylic acid

191031-07-9
15 suppliers
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(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]

3844-31-3
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References
1-thiochromone

491-39-4
5 suppliers
$106.00/50mg

4H-1-Benzothiopyran-4-one, 3-bromo-

68847-94-9
3 suppliers
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(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]

3844-31-3
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References