Cesium carbonate → HCID 59496813, compound

HRID 416994Notes

Reaction equation

HRID 416994 reaction equation
[CH2:1]([O:3][C:4](=[O:39])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][O:21][C:22]2[CH:27]=[C:26]([O:28][CH2:29][CH3:30])[CH:25]=[C:24](Br)[CH:23]=2)[C:10]=1[CH2:32][CH2:33][C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH3:2].[O:40]1[C:45]2[CH:46]=[CH:47][C:48](B(O)O)=[CH:49][C:44]=2[O:43][CH2:42][CH2:41]1.C(=O)([O-])[O-].[Cs+].[Cs+]>C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH2:1]([O:3][C:4](=[O:39])[CH2:5][CH2:6][CH2:7][O:8][C:9]1[CH:14]=[CH:13][CH:12]=[C:11]([CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][O:21][C:22]2[CH:27]=[C:26]([O:28][CH2:29][CH3:30])[CH:25]=[C:24]([C:48]3[CH:47]=[CH:46][C:45]4[O:40][CH2:41][CH2:42][O:43][C:44]=4[CH:49]=3)[CH:23]=2)[C:10]=1[CH2:32][CH2:33][C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH3:2]

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 2776178(2,3-Dihydro-1,4-benzodioxin-6-yl)boronic acidHCID 59496797HCID 59496797, compound

Product 1

HCID 59496813HCID 59496813, compoundYield 23%

Reagents, catalysts & solvents 1

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)Catalyst

Procedure

A similar procedure as described in Example 44, step 3 was used, starting from 4-[3-[6-(3-bromo-5-ethoxy-phenoxy)-hexyl]-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (305 mg, 0.5 mmol), 1,4-benzodioxane-6-boronic acid (184 mg, 1.0 mmol), [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium(II) (55 mg, 0.075 mmol), and cesium carbonate (331 mg, 1.0 mmol) to obtain 4-[3-{6-[3-(2,3-dihydro-benzo[1,4]dioxin-6-yl)-5-ethoxy-phenoxy]-hexyl}-2-(2-ethoxycarbonyl-ethyl)-phenoxy]-butyric acid ethyl ester (76 mg, 23%) as a colorless viscous oil: ES(+)-HRMS m/e calcd for C39H50O9 (M+Na)+ 685.3347. found 685.3353.

Sources & evidence

ORD record
ord-94689ca460e94d0e97fa978f6e47c3e7
Source dataset
uspto-grants-2012_01
Patent number
US08088936B2

Reaction notes

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