1,1'-Carbonyldiimidazole → HCID 178480532, compound

HRID 2057472Notes

Reaction equation

HRID 2057472 reaction equation
[CH3:1][N:2]1[CH:7]=[C:6]([C:8](O)=[O:9])[C:5](=[O:11])[C:4]2[C:12]3[CH:20]=[CH:19][CH:18]=[CH:17][C:13]=3[O:14][C:15](=[O:16])[C:3]1=2.C(N1C=CN=C1)(N1C=CN=C1)=O.O.[NH2:34][C:35]1[NH:39][N:38]=[N:37][N:36]=1>CN(C)C=O>[CH3:1][N:2]1[CH:7]=[C:6]([C:8]([NH:34][C:35]2[NH:39][N:38]=[N:37][N:36]=2)=[O:9])[C:5](=[O:11])[C:4]2[C:12]3[CH:20]=[CH:19][CH:18]=[CH:17][C:13]=3[O:14][C:15](=[O:16])[C:3]1=2

Participants

5

Reactant 3

HCID 682631,1'-CarbonyldiimidazoleHCID 20332401HCID 20332401, compoundHCID 178509300HCID 178509300, compound

Product 1

HCID 178480532HCID 178480532, compoundYield 95%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

Prepared by the method described for Ex. 17 from 1,5-dihydro-4-methyl-1,5-dioxo-4H-1-benzopyrano[3,4-b]pyridine-2-carboxylic acid (5.42 g, 0.02 mole), 1,1'-carbonyldiimidazole (6.48 g, 0.04 mole) and 5-aminotetrazole monohydrate (2.06 g, 0.02 mole) in dimethylformamide (90 ml). Recrystallization from dimethylformamide gives pale yellow crystals (6.4 g, 95%), m.p. above 300.

Workup

  1. customPrepared by the method
  2. customRecrystallization from dimethylformamide

Sources & evidence

ORD record
ord-34b894330f9348198bed333758bb1606
Source dataset
uspto-grants-1980_07
Patent number
US04210758

Reaction notes

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