Ethyl 4-(5'-(4-(diphenylaMino)phenyl)-[2,2'-bithiophen]-5-yl)-2-oxocyclohex-3-enecarboxylate synthesis

1synthesis methods

Product Name:Ethyl 4-(5'-(4-(diphenylaMino)phenyl)-[2,2'-bithiophen]-5-yl)-2-oxocyclohex-3-enecarboxylate
CAS Number:1096156-12-5
Molecular formula:C35H29NO3S2
Molecular Weight:575.74

1096156-10-3 Synthesis

3-(5'-(4-(DiphenylaMino)phenyl)-[2,2'-bithiophen]-5-yl)cyclohex-2-enone

1096156-10-3
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541-41-3
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Ethyl 4-(5'-(4-(diphenylaMino)phenyl)-[2,2'-bithiophen]-5-yl)-2-oxocyclohex-3-enecarboxylate

1096156-12-5
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Yield:1096156-12-5 54%

Reaction Conditions:

Stage #1: 3-(5-(5-(4-(diphenylamino)phenyl)thiophen-2-yl)thiophen-2-yl)cyclohex-2-enonewith lithium diisopropyl amide in tetrahydrofuran;hexane at -78;
Stage #2: chloroformic acid ethyl ester in tetrahydrofuran;hexane at -78;

References:

Chen, Kuan-Fu;Hsu, Ying-Chan;Wu, Qiongyou;Yen, Ming-Chang P.;Sun, Shih-Sheng [Organic Letters,2009,vol. 11,# 2,p. 377 - 380] Location in patent:supporting information; experimental part