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

HRID 1774024
Notes
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Reaction equation

HRID 1774024 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:33]([O-])([O-])=O.[K+].[K+]>C(Cl)Cl.O>[CH2:18]([O:17][CH2:16][CH:9]1[C:10]([CH3:33])([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:24]=[C:23]([CH3:22])[CH:31]=[C:30]([CH3:32])[CH:29]=1)=[O:21])[CH:19]=[CH2:20]
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

6

Reactant 3

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

Product 1

HCID 866766673,5-dimethyl-benzoic acid N'-(2-allyloxymethyl-3-methyl-3-methoxy-benzoyl)-N-tert-butyl-hydrazideYield 80.1%

Reagents, catalysts & solvents 2

HCID 962
Water
Solvent
HCID 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-methyl-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), 1.54 7 (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-c9b7fe01e94d48c1a975fe4e06bf6a93
Source dataset
uspto-grants-2016_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09255273B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes