Dodecane → HCID 21940678, compound

HRID 984555Notes

Reaction equation

HRID 984555 reaction equation
[C:1]([NH:9][NH2:10])(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C([O-])([O-])=O.[K+].[K+].[C@@H]1(N)CCCC[C@H]1N.CCCCCCCCCCCC.I[C:38]1[CH:39]=[C:40]([CH3:45])[CH:41]=[C:42]([CH3:44])[CH:43]=1>[Cu]I.O1CCOCC1>[C:1]([NH:9][NH:10][C:38]1[CH:43]=[C:42]([CH3:44])[CH:41]=[C:40]([CH3:45])[CH:39]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

8

Reactant 5

HCID 8182DodecaneHCID 11430Potassium CarbonateHCID 11955BenzoylhydrazineHCID 438061,2-Diaminocyclohexane, trans-HCID 1409241-Iodo-3,5-dimethylbenzene

Product 1

HCID 21940678HCID 21940678, compoundYield 64%

Reagents, catalysts & solvents 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
110 °C

Procedure

An oven-dried resealable Schlenk tube was charged with CuI (2.0 mg, 0.0105 mmol, 1.0 mol %), benzoic hydrazide (170 mg, 1.25 mmol), K2CO3 (290 mg, 2.10 mmol), evacuated and backfilled with argon. trans-1,2-Cyclohexanediamine (13 μL, 0.108 mmol, 11 mol %), dodecane (235 μL), 5-iodo-m-xylene (150 μL, 1.04 mmol) and dioxane (1.0 mL) were added under argon. The Schlenk tube was sealed and the reaction mixture was stirred magnetically at 110° C. for 23 h. The resulting suspension was cooled to room temperature and filtered through a 0.5×1 cm pad of silica gel eluting with 10 mL of ethyl acetate. The filtrate was concentrated and the residue was purified by flash chromatography on silica gel (2×15 cm; hexane-ethyl acetate 2:1; 15 mL fractions). Fractions 9-13 provided 159 mg (64% yield) of the product as a pale tan solid. 1H NMR (300 MHz, CDCl3): δ 8.06 (br s, 1H), 7.87-7.82 (m, 2H), 7.60-7.44 (m, 3H), 6.58 (s, 1H), 6.54 (s, 2H), 6.32 (br s, 1H), 2.25 (s, 6H).

Workup

  1. customevacuated
  2. customThe Schlenk tube was sealed
  3. temperatureThe resulting suspension was cooled to room temperature
  4. filtrationfiltered through a 0.5×1 cm pad of silica gel eluting with 10 mL of ethyl acetate
  5. concentrationThe filtrate was concentrated
  6. customthe residue was purified by flash chromatography on silica gel (2×15 cm; hexane-ethyl acetate 2:1; 15 mL fractions)

Sources & evidence

ORD record
ord-984896a9965c480588c9afe1ea17b419
Source dataset
uspto-grants-2005_03
Patent number
US06867298B2

Reaction notes

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