HuagongsheHuagongshe Chemistry Print Report · For research reference only
Cesium carbonate → 4-[3-[6-(3-Acetyl-5-thiophen-3-yl-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Cesium carbonate | HCID 10796 | — |
| Reactant | Thiophene-3-boronic acid | HCID 581760 | — |
| Reactant | 4-[3-[6-(3-Acetyl-5-bromo-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester | HCID 59496836 | — |
| Catalyst | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| Product | 4-[3-[6-(3-Acetyl-5-thiophen-3-yl-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester | HCID 59496815 | 94% |
Reaction Steps
A similar procedure as described in Example 43, step 4 was used, starting from 4-[3-[6-(3-acetyl-5-bromo-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (303 mg, 0.5 mmol), 3-thiopheneboronic acid (128 mg, 1.0 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (73 mg, 0.1 mmol), and cesium carbonate (326 mg, 1.0 mmol) to obtain 4-[3-[6-(3-acetyl-5-thiophen-3-yl-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (285 mg, 94%) as a light brown oil: ES(+)-HRMS m/e calcd for C35H44O7S (M+Na)+ 631.2700. found 631.2704.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08088936B2 |
| Source dataset | uspto-grants-2012_01 |
| ORD ID | ord-a39e0fd1ca884cf084d647cec47a37eb |
| Source note | uspto-grants-2012_01 |