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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1281890Generated: October 25, 2026

N,N-Dimethylaniline → 2,9-Dimethyl-4-(4-methylpiperazin-1-yl)thieno[2,3-b][1,5]benzoxazepine

https://huagongshe.com/reaction/1281890

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN,N-DimethylanilineHCID 949—
ReactantPhosphorus oxychlorideHCID 24813—
Reactant1-MethylpiperazineHCID 53167—
Reactant2,9-dimethylthieno[2,3-b][1,5]benzoxazepin-4(5H)-oneHCID 11032137—
Product2,9-Dimethyl-4-(4-methylpiperazin-1-yl)thieno[2,3-b][1,5]benzoxazepineHCID 11067400—

Reaction Steps

In the same manner as in Example 125 and using 2,9-dimethylthieno[2,3-b][1,5]benzoxazepin-4(5H)-one, phosphorus oxychloride, N,N-dimethylaniline and 1-methylpiperazine, 2,9-dimethyl-4-(4-methylpiperazin-1-yl)thieno[2,3-b][1,5]benzoxazepine is obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06455521B1
Source datasetuspto-grants-2002_09
ORD IDord-eb6b29bebb254086b05002f99c9e3858
Source noteuspto-grants-2002_09