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

6synthesis methods

Product Name:(2E)-Δ2,2'-Bi[benzo[b]thiophene-3(2H)-one]
CAS Number:3844-31-3
Molecular formula:
Molecular Weight:0

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

80404-59-7
0 suppliers
inquiry

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

3844-31-3
0 suppliers
inquiry

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]