Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 366373Generated: October 26, 2026

N,N-Dimethylaniline → 4-(4-Chloro-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoic acid methylester

https://huagongshe.com/reaction/366373

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN,N-DimethylanilineHCID 949—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantMethyl 4-(3,4-dihydro-4-oxo-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoateHCID 23289523—
Product4-(4-Chloro-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoic acid methylesterHCID 15840514—

Reaction Steps

A mixture of 18 ml of POCl3 with 6 g of methyl 4-(3,4-dihydro-4-oxo-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoate is boiled for 4 hours with the addition of 1.8 ml of N,N-dimethylaniline. Customary working up gives 5 g of methyl 4-(4-chloro-6-methyl-thieno-[2,3-d]-pyrimidin-2-yl)-benzoate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06130223
Source datasetuspto-grants-2000_10
ORD IDord-c916f40f76f14264bf5761b9ed51f53e
Source noteuspto-grants-2000_10