Potassium Carbonate → 3,5-dimethyl-benzoic acid N'-(2-allyloxymethyl-3-methoxy-benzoyl)-N-tert-butyl-hydrazide

HRID 512773Notes

Reaction equation

HRID 512773 reaction equation
[C:1]([NH:5][NH:6][C:7](=[O:21])[C:8]1[CH:13]=[CH:12][CH:11]=[C:10]([O:14][CH3:15])[C:9]=1[CH2:16][O:17][CH2:18][CH:19]=[CH2:20])([CH3:4])([CH3:3])[CH3:2].[CH3:22][C:23]1[CH:24]=[C:25]([CH:29]=[C:30]([CH3:32])[CH:31]=1)[C:26](Cl)=[O:27].C([O-])([O-])=O.[K+].[K+]>C(Cl)Cl.O>[CH2:18]([O:17][CH2:16][C:9]1[C:10]([O:14][CH3:15])=[CH:11][CH:12]=[CH:13][C:8]=1[C:7]([NH:6][N:5]([C:1]([CH3:4])([CH3:3])[CH3:2])[C:26](=[O:27])[C:25]1[CH:29]=[C:30]([CH3:32])[CH:31]=[C:23]([CH3:22])[CH:24]=1)=[O:21])[CH:19]=[CH2:20]

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 810883,5-Dimethylbenzoyl ChlorideHCID 598385982-allyloxymethyl-3-methoxy-benzoic acid N'-tert-butyl-hydrazide

Product 1

HCID 598386073,5-dimethyl-benzoic acid N'-(2-allyloxymethyl-3-methoxy-benzoyl)-N-tert-butyl-hydrazideYield 83.1%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6344DichloromethaneSolvent2×

Procedure

To a flask containing 2.0 g (0.0068 mol) of 2-allyloxymethyl-3-methoxy-benzoic acid N′-tert-butyl-hydrazide dissolved in 15 mL of CH2Cl2, was added 1.27 g (0.0075 mol) of 3,5-dimethylbenzoyl chloride in 10 mL of CH2Cl2 and 2.84 g of K2CO3 (0.02 mol) in 30 mL of H2O. The mixture was stirred at room temperature for 24 hours. The reaction mixture was diluted and partitioned, and the organic phase was dried and solvent was removed in vacuo. The product was purified by silica gel chromatography; eluting in 25% ethyl acetate:hexane fractions, to yield 2.40 g of pure 3,5-dimethyl-benzoic acid N′-(2-allyloxymethyl-3-methoxy-benzoyl)-N-tert-butyl-hydrazide. 1H NMR (CDCl3, 300 MHz) δ (ppm): 7.2 (t, 1H,) 7.1 (s, 1H), 7.05 (d, 2H), 6.95 (m, 2H), 5.9 (m, 1H), 5.2-5.3 (q, 2H), 4.5 (d, 2H), 3.9 (m, 2H), 3.80 (s, 3H), 2.245 (s, 6H), 1.547 (s, 9H).

Workup

  1. additionThe reaction mixture was diluted
  2. custompartitioned
  3. customthe organic phase was dried
  4. customsolvent was removed in vacuo
  5. customThe product was purified by silica gel chromatography
  6. washeluting in 25% ethyl acetate

Sources & evidence

ORD record
ord-a6e1c56164c74082b2749f65aac51776
Source dataset
uspto-grants-2015_08
Patent number
US09102648B1

Reaction notes

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