Water → 2-(2-Chloro-6-cyclopropylmethoxy-4'-trifluoromethyl-biphenyl-4-yl)-4-methyl-pentanoic acid cyclopropylmethyl ester

HRID 385355Notes

Reaction equation

HRID 385355 reaction equation
[CH:1]1([CH2:4][O:5][C:6](=[O:25])[CH:7]([C:12]2[CH:17]=[C:16]([O:18][CH2:19][CH:20]3[CH2:22][CH2:21]3)[C:15](I)=[C:14]([Cl:24])[CH:13]=2)[CH2:8][CH:9]([CH3:11])[CH3:10])[CH2:3][CH2:2]1.[F:26][C:27]([F:38])([F:37])[C:28]1[CH:33]=[CH:32][C:31](B(O)O)=[CH:30][CH:29]=1.[F-].[Cs+].O>COCCOC.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].CCOC(C)=O>[CH:1]1([CH2:4][O:5][C:6](=[O:25])[CH:7]([C:12]2[CH:17]=[C:16]([O:18][CH2:19][CH:20]3[CH2:22][CH2:21]3)[C:15]([C:31]3[CH:32]=[CH:33][C:28]([C:27]([F:38])([F:37])[F:26])=[CH:29][CH:30]=3)=[C:14]([Cl:24])[CH:13]=2)[CH2:8][CH:9]([CH3:11])[CH3:10])[CH2:3][CH2:2]1

Participants

8

Reactant 4

HCID 962WaterHCID 25953Cesium fluorideHCID 27343894-(Trifluoromethyl)phenylboronic acidHCID 579956062-(3-Chloro-5-cyclopropylmethoxy-4-iodo-phenyl)-4-methyl-pentanoic acid cyclopropylmethyl ester

Product 1

HCID 579956382-(2-Chloro-6-cyclopropylmethoxy-4'-trifluoromethyl-biphenyl-4-yl)-4-methyl-pentanoic acid cyclopropylmethyl esterYield 70%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 80711,2-DimethoxyethaneSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
100 °C

Procedure

To a solution of 2-(3-chloro-5-cyclopropylmethoxy-4-iodo-phenyl)-4-methyl-pentanoic acid cyclopropylmethyl ester (0.09 g, 0.19 mmol) in DME (anhydrous, 10 mL) under argon atmosphere were added 4-trifluoromethylphenylboronic acid (0.04 g, 0.2 mmol), CsF (0.07 g, 0.46 mmol), and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II) (0.06 g, 0.08 mmol). The reaction mixture was refluxed for 18 h (oil bath, 100° C.). A mixture of water and EtOAc (15 mL/15 mL) was added and the layers were separated. The organic phase was dried over MgSO4, then evaporated to give a crude yellow oil, which was purified by silica gel gradient column chromatography by use of Heptane-EtOAc (20:1-9:1) to give 2-(2-chloro-6-cyclopropylmethoxy-4′-trifluoromethyl-biphenyl-4-yl)-4-methyl-pentanoic acid cyclopropylmethyl ester (0.063 g, 70%) as a yellowish oil. 1H NMR (300 MHz, CDCl3/TMS): δ 7.66 (d, J=8.0 Hz, 2H), 7.43 (d, J=8.0 Hz, 2H), 7.08 (s, 1H), 6.88 (s, 1H), 4.01-3.86 (m, 2H), 3.77 (d, J=6.6 Hz, 2H), 3.65 (t, J=7.9 Hz, 1H), 2.04-1.95 (m, 1H), 1.71-1.62 (m, 1H), 1.59-1.48 (m, 1H), 1.20-1.02 (m, 2H), 0.96-0.94 (m, 6H), 0.56-0.46 (m, 4H), 0.27-0.25 (m, 2H), 0.16-0.15 (m, 2H). 13C NMR (75 MHz, CDCl3/TMS): δ 173.5, 157.0, 141.2, 138.9, 133.6, 130.8 (two signals), 127.8, 124.5 (q), 124.3 (q, 1JCF=271.0 Hz), 121.6, 111.0, 73.3, 69.7, 49.6, 42.7, 26.1, 22.6, 22.4, 10.0, 9.8, 3.3, 3.1.

Workup

  1. additionwas added
  2. customthe layers were separated
  3. dry with materialThe organic phase was dried over MgSO4
  4. customevaporated
  5. customto give a crude yellow oil, which
  6. customwas purified by silica gel gradient column chromatography by use of Heptane-EtOAc (20:1-9:1)

Sources & evidence

ORD record
ord-93022f221a9c40d48a3880b513974468
Source dataset
uspto-grants-2013_02
Patent number
US08367863B2

Reaction notes

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