1,2-Dichlorobenzene → HCID 117986060, compound

HRID 1055607Notes

Reaction equation

HRID 1055607 reaction equation
C([O:8][C@H:9]1[C@H:15]([O:16]CC2C=CC=CC=2)[C@@H:14]([O:24]CC2C=CC=CC=2)[C@:13]2([C:33]3[CH:38]=[CH:37][C:36]([Cl:39])=[C:35]([CH2:40][C:41]4[CH:46]=[CH:45][C:44]([O:47][CH2:48][CH3:49])=[CH:43][CH:42]=4)[CH:34]=3)[O:32][C@:10]1([CH:50]1[CH2:52][O:51]1)[CH2:11][O:12]2)C1C=CC=CC=1.ClC1C=CC=CC=1Cl>[Pd].CO.O1CCCC1>[Cl:39][C:36]1[CH:37]=[CH:38][C:33]([C@@:13]23[O:32][C@@:10]([CH:50]4[CH2:52][O:51]4)([CH2:11][O:12]2)[C@@H:9]([OH:8])[C@H:15]([OH:16])[C@H:14]3[OH:24])=[CH:34][C:35]=1[CH2:40][C:41]1[CH:46]=[CH:45][C:44]([O:47][CH2:48][CH3:49])=[CH:43][CH:42]=1

Participants

5

Reactant 2

HCID 72391,2-DichlorobenzeneHCID 118377953HCID 118377953, compound

Product 1

HCID 117986060HCID 117986060, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 21899815MeOH tetrahydrofuranSolvent

Procedure

To a solution of (1S,2S,3S,4R,5S)-2,3,4-tribenzyloxy-5-[4-chloro-3-[(4-ethoxyphenyl)methyl]phenyl]-1-(oxiran-2-yl)-6,8-dioxabicyclo[3.2.1]octane 10a (310 mg, 0.43 mmol, obtained from the synthetic method described in step 1 example 10) in a methanol/tetrahydrofuran mixture (v/v=4/1, 15 mL) were added o-dichlorobenzene (0.25 mL, 2.15 mmol) and 10% Pd/C (30 mg, 0.03 mmol) at room temperature. The mixture was stirred under H2 at room temperature for 6 hours and filtered. The filter cake was washed with an ethyl acetate/tetrahydrofuran mixture (v/v=4/1, 10 mL×2) and the filtrate was concentrated in vacuo. The residue was purified by silica gel chromatography eluted with PE/EtOAc(v/v)=1/1 to give the title compound 26 as a white solid (34 mg, 17.6%, HPLC: 97.5%). The compound was characterized by the following spectroscopic data: MS (ESI, pos. ion) m/z: 449.1[M+H]+; and 1H NMR (400 MHz, DMSO-d6) δ(ppm): 7.38 (m, 2H), 7.27 (m, 1H), 7.09 (d, 2H), 6.83 (d, 2H), 5.54 (d, 1H), 5.10 (d, 1H), 4.99 (d, 1H), 3.97 (m, 5H), 3.45 (t, 1H), 3.40 (m, 2H), 3.26 (m, 3H), 2.78 (t, 1H), 1.29 (t, 3H).

Workup

  1. filtrationfiltered
  2. washThe filter cake was washed with an ethyl acetate/tetrahydrofuran mixture (v/v=4/1, 10 mL×2)
  3. concentrationthe filtrate was concentrated in vacuo
  4. customThe residue was purified by silica gel chromatography
  5. washeluted with PE/EtOAc(v/v)=1/1

Sources & evidence

ORD record
ord-3dcf8012ec1d4e03a50616b186742940
Source dataset
uspto-grants-2016_07
Patent number
US09394329B2

Reaction notes

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