Chloroiodomethane → HCID 57752622, compound

HRID 226058Notes

Reaction equation

HRID 226058 reaction equation
[CH2:1]([CH:3]([C:6]1[C:7]2[N:8]([C:13]([C:17]3[C:18]4[CH:26]=[CH:25][CH:24]=[C:23]([C:27]([CH3:29])=[CH2:28])[C:19]=4[S:20][C:21]=3[CH3:22])=[C:14]([CH3:16])[N:15]=2)[N:9]=[C:10]([CH3:12])[CH:11]=1)[CH2:4][CH3:5])[CH3:2].[Zn](CC)[CH2:31]C.ClCI>C(Cl)Cl>[CH2:1]([CH:3]([C:6]1[C:7]2[N:8]([C:13]([C:17]3[C:18]4[CH:26]=[CH:25][CH:24]=[C:23]([C:27]5([CH3:31])[CH2:29][CH2:28]5)[C:19]=4[S:20][C:21]=3[CH3:22])=[C:14]([CH3:16])[N:15]=2)[N:9]=[C:10]([CH3:12])[CH:11]=1)[CH2:4][CH3:5])[CH3:2]

Participants

5

Reactant 3

HCID 11644ChloroiodomethaneHCID 57752702HCID 57752702, compoundHCID 178418750HCID 178418750, compound

Product 1

HCID 57752622HCID 57752622, compoundYield 12.5%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

A solution of 8-(1-ethyl-propyl)-3-(7-isopropenyl-2-methyl-benzo[b]thiophen-3-yl)-2,6-dimethyl-imidazo[1,2-b]pyridazine (97 mg, 0.24 mmol) in CH2Cl2 (5 mL) is cooled to 0° C., treated with 1.0 M Et2Zn (1.2 mL, 1.2 mmol) and ClCH2I (176 μL, 2.4 mmol). The reaction is stirred at 0° C. for 30 min, then at RT for 1 h. The reaction is cooled to 0° C., quenched with sat. NH4Cl (10 mL); diluted with H2O (15 mL); extracted with EtOAc (3×30 mL); dried with Na2SO4, filtered and concentrated. The crude material is subjected to the same condition to ensure the conversion is completed. Purification of the crude material using silica gel chromatography gives the title compound (12.4 mg, 0.03 mmol, 12%). 1H NMR (CDCl3): δ 0.80-0.84 (m, 2H), 0.92 (t, J=6.9 Hz, 6H), 0.97-1.11 (m, 2H), 1.51 (s, 3H), 1.79-1.94 (m, 4H), 2.41 (s, 3H), 2.43 (s, 3H), 2.46 (s, 3H), 3.22-3.54 (m, 1H), 6.69 (s, 1H), 7.07 (d, J=7.5 Hz, 1H), 7.21 (t, J=7.5 Hz, 1H), 7.26 (d, J=7.5 Hz, 1H) ppm. ES-MS (m/z): calcd for C26H31N3S (M+H)+: 418.6. found: 418.3.

Workup

  1. waitat RT for 1 h
  2. temperatureThe reaction is cooled to 0° C.
  3. customquenched with sat. NH4Cl (10 mL)
  4. additiondiluted with H2O (15 mL)
  5. extractionextracted with EtOAc (3×30 mL)
  6. dry with materialdried with Na2SO4
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customPurification of the crude material

Sources & evidence

ORD record
ord-427e5bfa12504a58b7383cd8c83739cf
Source dataset
uspto-grants-2009_07
Patent number
US07557103B2

Reaction notes

Loading…