Acetic Anhydride → HCID 20217690, compound

HRID 1154973Notes

Reaction equation

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

Participants

Reactant 2

HCID 7918Acetic Anhydride

HCID 178432341HCID 178432341, compound

Product 1

HCID 20217690HCID 20217690, compoundYield 70%

Procedure

4-[(4-CHLOROPHENYL)METHYL]-6,7-DIHYDRO-2,6,6-TRIMETHYL-3H-IMIDAZO[1,2-a]PURIN-9(4H)-ONE.-- The nitroso compound of Procedure 103 was catalytically hydrogenated to the diamino compound and then treated with acetic anhydride according to the method of Procedure 63. There resulted from this process the mono N-acetyl derivative of 8-[(4-chlorophenyl)methyl]-6,7-diamino-imidazo[1,2-a]pyrimidin-5-one, m.p. 155°-159° after recrystallization from isopropanol and drying under vacuum.

Sources & evidence

ORD record: ord-8e3dd68b8f844ea394067a61c2f7880c
Source dataset: uspto-grants-1981_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04298734

Reaction notes

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