HCID 13469479, compound → HCID 86736422, compound

HRID 894669Notes

Reaction equation

HRID 894669 reaction equation
[CH3:1][C:2]1[NH:3][C:4]([CH:32](OCC)[O:33]CC)=[C:5]([C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH:6]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=2[N+:24]([O-:26])=[O:25])[C:7]=1[C:8]([O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:9]>CC(C)=O.Cl>[CH3:1][C:2]1[NH:3][C:4]([CH:32]=[O:33])=[C:5]([C:27]([O:29][CH2:30][CH3:31])=[O:28])[CH:6]([C:18]2[CH:23]=[CH:22][CH:21]=[CH:20][C:19]=2[N+:24]([O-:26])=[O:25])[C:7]=1[C:8]([O:10][CH2:11][C:12]1[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=1)=[O:9]

Participants

4

Reactant 1

HCID 13469479HCID 13469479, compound

Product 1

HCID 86736422HCID 86736422, compoundYield 100.9%

Reagents, catalysts & solvents 2

HCID 180AcetoneSolventHCID 313Hydrochloric AcidSolvent

Procedure

In a substantially similar manner to that of Example 2-6), was treated a mixture of benzyl 2-methyl-4-(2-nitrophenyl)-5-ethoxycarbonyl-6-diethoxymethyl-1,4-dihydropyridine-3-carboxylate (1.5 g) in acetone (15 ml) and 6 N hydrochloric acid (1.5 ml) to give a reddish brown oil which was crystallized and washed with n-hexane to give crystals (1.30 g) of benzyl 2-methyl-4-(2-nitrophenyl)-5-ethoxycarbonyl-6-formyl-1,4-dihydropyridine-3-carboxylate.

Workup

  1. additionIn a substantially similar manner to that of Example 2-6), was treated
  2. customto give a reddish brown oil which
  3. customwas crystallized
  4. washwashed with n-hexane

Sources & evidence

ORD record
ord-86853018f4354378941761331dd0f057
Source dataset
uspto-grants-1981_08
Patent number
US04284634

Reaction notes

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