Urea → HCID 19789370, compound

HRID 1655957Notes

Reaction equation

HRID 1655957 reaction equation
[O:1]1[C:6]2[CH:7]=[C:8]([C:14]([OH:16])=O)[C:9]([C:11](O)=[O:12])=[CH:10][C:5]=2[O:4][CH2:3][CH2:2]1.[NH2:17]C(N)=O>O>[O:1]1[C:6]2=[CH:7][C:8]3[C:14](=[O:16])[NH:17][C:11](=[O:12])[C:9]=3[CH:10]=[C:5]2[O:4][CH:3]=[CH:2]1

Participants

4

Reactant 2

HCID 1176UreaHCID 19789313HCID 19789313, compound

Product 1

HCID 19789370HCID 19789370, compoundYield 88.3%

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

A mixture of 1,4-benzodioxan-6,7-dicarboxylic acid (100 mg) and urea (54 mg) was heated to 160° for 2 h. When cool, the mixture was diluted with water and the resulting solid collected by filtration and washed with water and dried to afford the title compound (80 mg). M.p. 277°-280°.

Workup

  1. temperaturewas heated to 160° for 2 h
  2. temperatureWhen cool
  3. filtrationthe resulting solid collected by filtration
  4. washwashed with water
  5. customdried

Sources & evidence

ORD record
ord-00cde2e827ec456eb6e1546abacc15fa
Source dataset
uspto-grants-1993_10
Patent number
US05252560

Reaction notes

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