Ethyl butyrimidate → HCID 178512693, compound

HRID 1758739Notes

Reaction equation

HRID 1758739 reaction equation
[NH:1]([C:5]1[S:6][CH:7]=[C:8]([C:10](NN)=[O:11])[N:9]=1)[C:2]([NH2:4])=[NH:3].C(=N)([O:18]CC)CCC.Cl.C(OC(=N)CCC)C>C(O)C>[NH:1]([C:5]1[S:6][CH:7]=[C:8]([C:10]([OH:11])=[O:18])[N:9]=1)[C:2]([NH2:4])=[NH:3]

Participants

5

Reactant 3

HCID 16634Ethyl butyrimidateHCID 12235055Ethyl butyrimidate hydrochlorideHCID 178512692HCID 178512692, compound

Product 1

HCID 178512693HCID 178512693, compoundYield 78%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

2.90 g (14.48 mol) of 2-guanidino-4-thiazole carboxylic acid hydrazide in 50 ml dry ethanol was slurried with 29.1 mmol of ethyl butyrimidate (prepared from 4.41 g (29.1 mmol) of ethylbutyrimidate hydrochloride) for 5 days at 25°. The slurry was filtered and washed with ethanol and ether and dried to give 3.071 g (78%) of 2-guanidino-4-thiazole carboxylic acid 2-butyriminohydrazide.

Workup

  1. filtrationThe slurry was filtered
  2. washwashed with ethanol and ether
  3. customdried

Sources & evidence

ORD record
ord-ae7878a8922447f5877d8ab00852f644
Source dataset
uspto-grants-1983_02
Patent number
US04374843

Reaction notes

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