ChemicalBook CAS DataBase List 4,8-bis(2-ethylhexyl)benzo[1,2-b:4,5-b']dithiophene

4,8-bis(2-ethylhexyl)benzo[1,2-b:4,5-b']dithiophene synthesis

1synthesis methods

Product Name:4,8-bis(2-ethylhexyl)benzo[1,2-b:4,5-b']dithiophene
CAS Number:1234306-29-6
Molecular formula:C26H38S2
Molecular Weight:414.71

32281-36-0 Synthesis

Benzo[1,2-b:4,5-b']dithiophene-4,8-dione

32281-36-0
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13067-81-7 Synthesis

13067-81-7
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4,8-bis(2-ethylhexyl)benzo[1,2-b:4,5-b']dithiophene

1234306-29-6
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Yield:1234306-29-6 21%

Reaction Conditions:

Stage #1: 4,8-dihydrobenzo[1,2-b:4,5-b']dithiophene-4,8-dione;(2-ethylhexyl)lithium in tetrahydrofuran at 20; for 1.16667 h;Inert atmosphere;
Stage #2: with hydrogenchloride;tin(ll) chloride in tetrahydrofuran;water; for 3 h;Reflux;

References:

Pappenfus, Ted M.;Seidenkranz, Daniel T.;Reinheimer, Eric W. [Heterocycles,2012,vol. 85,# 2,p. 355 - 364] Location in patent:experimental part