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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 47072Generated: October 25, 2026

Acetic Acid → 5,6-Dimethoxy-3[4(3,4-dimethoxyphenyl)piperazino]methylene oxindole

https://huagongshe.com/reaction/47072

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
Reactant1-(3,4-Dimethoxyphenyl)piperazineHCID 2736207—
ReactantHCID 178486553HCID 178486553—
SolventBenzeneHCID 241—
Product5,6-Dimethoxy-3[4(3,4-dimethoxyphenyl)piperazino]methylene oxindoleHCID 54275679—

Reaction Steps

3.00 g. of 5,6-Dimethoxy-3-hydroxymethylene oxindole, 2.3 g. acetic acid and 4.1 g. N-(3,4-dimethoxyphenyl)piperazine [J. Med. Chem. 10 (5) 812 (1967)] in 40 ml. benzene were reacted as described in Example 5 to give 4.67 g. product, m.p. 193°-195° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04176191
Source datasetuspto-grants-1979_11
ORD IDord-aa565e80a5ba49e980cf4d5fcfe8b3b1
Source noteuspto-grants-1979_11