Hydrochloric Acid → HCID 20535124, compound

HRID 1680934Notes

Reaction equation

[NH2:1][C:2]1[N:7]2[O:8][C:9](=[O:11])[N:10]=[C:6]2[N:5]=[C:4]([N:12]([CH2:16][CH:17]=[CH2:18])[CH2:13][CH:14]=[CH2:15])[N:3]=1.[O:19]1[CH:23]=[CH:22][CH:21]=[C:20]1[C:24](Cl)=[O:25].Cl>O.C(Cl)Cl.C(N(CC)CC)C>[CH2:13]([N:12]([CH2:16][CH:17]=[CH2:18])[C:4]1[N:3]=[C:2]([NH:1][C:24]([C:20]2[O:19][CH:23]=[CH:22][CH:21]=2)=[O:25])[N:7]2[O:8][C:9](=[O:11])[N:10]=[C:6]2[N:5]=1)[CH:14]=[CH2:15]

Participants

Conditions

Temperature: 0 °C

Procedure

6.0 g. of 7-amino-5-diallylamino-2H-[1,2,4]oxadiazolo[2,3-a]-s-triazin-2-one are suspended in 200 ml. of methylene chloride and 10 ml. of triethylamine. The mixture, cooled to about 0° C., is treated while stirring with 3 ml. of furan-2-carboxylic acid chloride in 50 ml. of methylene chloride. After stirring for 1 hour, the mixture is diluted with 100 ml. of water and adjusted to pH 4 with hydrochloric acid. The two phases are separated and the organic phase is dried over magnesium sulfate and evaporated under reduced pressure. The residue is recrystallized from methylene chloride and diethyl ether, there being obtained pure N-{5-diallylamino-2-oxo-2H-[1,2,4]oxadiazolo[2,3-a]-s-triazin-7-yl}-2-furamide having a melting point of 159°-162° C.

Workup

additionis treated
stirringAfter stirring for 1 hour
additionthe mixture is diluted with 100 ml
customThe two phases are separated
dry with materialthe organic phase is dried over magnesium sulfate
customevaporated under reduced pressure
customThe residue is recrystallized from methylene chloride and diethyl ether, there

Sources & evidence

ORD record: ord-38d65749ac0946bbb72ef93fd180d117
Source dataset: uspto-grants-1981_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04276417

Reaction notes

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