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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1659344Generated: November 3, 2026

Acetic Anhydride → 1-Nitro-5-(p-methoxyphenyl)-6-acetyl-5,6-dihydropyrazolo[1,5-c]quinazoline

https://huagongshe.com/reaction/1659344

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
Reactant1-Nitro-5-(p-methoxyphenyl)-5,6-dihydropyrazolo[1,5-c]quinazolineHCID 135737783—
Product1-Nitro-5-(p-methoxyphenyl)-6-acetyl-5,6-dihydropyrazolo[1,5-c]quinazolineHCID 1317567899%

Reaction Steps

1-Nitro-5-(p-methoxyphenyl)-5,6-dihydropyrazolo[1,5-c]quinazoline is reacted with acetic anhydride as described in Example 27 to give 1-nitro-5-(p-methoxyphenyl)-6-acetyl-5,6-dihydropyrazolo[1,5-c]quinazoline with a yield of 99%. M.p.: 153°-154° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04303660
Source datasetuspto-grants-1981_12
ORD IDord-1b2b47b1717b4dbdbd6950070c54e2bf
Source noteuspto-grants-1981_12