2-Methyl-2-butene → HCID 178524911, compound

HRID 1874861Notes

Reaction equation

HRID 1874861 reaction equation
Cl([O-])=O.[Na+].[OH2:5].P([O-])(O)(O)=O.[Na+].[Cl:12][C:13]1[N:14]=[C:15]([CH:20]2[CH2:22][CH2:21]2)[NH:16][C:17]=1[CH:18]=[O:19].CC(=CC)C>O.C1COCC1.C(O)(C)(C)C>[Cl:12][C:13]1[N:14]=[C:15]([CH:20]2[CH2:21][CH2:22]2)[NH:16][C:17]=1[C:18]([OH:5])=[O:19]

Participants

8

Reactant 4

HCID 105532-Methyl-2-buteneHCID 516949Sodium Phosphate, Monobasic, MonohydrateHCID 23668197Sodium ChloriteHCID 178520007HCID 178520007, compound

Product 1

HCID 178524911HCID 178524911, compoundYield 95.5%

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 6386tert-ButanolSolventHCID 8028TetrahydrofuranSolvent2×

Procedure

A solution of sodium chlorite (1.5 g, 16.6 mmol) and sodium dihydrogen phosphate monohydrate (1.3 g, 9.4 mmol) in water (3.7 mL) was added to a stirred solution of 4-chloro-2-cyclopropyl-1H-imidazole-5-carbaldehyde (0.282 g, 1.6 mmol), 2-methyl-2-butene (10 mL of a 2M solution in THF, 20.0 mmol), and tert-butanol (1.2 mL) in THF (5.0 mL). The reaction mixture was stirred at RT for 6 h. The aqueous phase was separated and extracted with EtOAc (4×10 mL). The combined extracts were dried (Na2SO4), filtered, concentrated and the residue was triturated with diethyl ether to provide the title compound (0.285 g, 95%) as light yellow solid. 1H NMR (400 MHz, DMSO-d6) δ ppm 12.95 (br. s., 1H), 1.90-2.00 (m, 1H), 0.89-0.98 (m, 2H), 0.82-0.89 (m, 2H). ES-LCMS: m/z 187.0 (M+1).

Workup

  1. customThe aqueous phase was separated
  2. extractionextracted with EtOAc (4×10 mL)
  3. dry with materialThe combined extracts were dried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customthe residue was triturated with diethyl ether

Sources & evidence

ORD record
ord-0ef5b2efdcbd4fd4ba8bca6cc5308961
Source dataset
uspto-grants-2012_11
Patent number
US08304419B2

Reaction notes

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