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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1738791Generated: November 3, 2026

Chloroform → 1-(6-Dimethylamino-3-hydroxy-3-methyl-4-hexynyl)-3-methyl-7-propylxanthine

https://huagongshe.com/reaction/1738791

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantN,N-DimethylpropargylamineHCID 81643—
Reactant3-Methyl-1-(3-oxobutyl)-7-propylxanthineHCID 15390923—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
SolventHexaneHCID 8058—
Product1-(6-Dimethylamino-3-hydroxy-3-methyl-4-hexynyl)-3-methyl-7-propylxanthineHCID 15390907—

Reaction Steps

4.32 g (52 mmol) of N,N-dimethyl-2-propynylamine, 32.4 ml (52 mmol) of n-butyllithium as 1.6 M solution in n-hexane and 11.1 g (40 mmol) of 3-methyl-1-(3-oxobutyl)-7-propylxanthine were reacted in tetrahydrofuran and worked up in analogy to Example 1C2), but using chloroform in place of dichloromethane as extractant.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05965555
Source datasetuspto-grants-1999_10
ORD IDord-3ce9ef70eda24bb09c26eb6b840e994a
Source noteuspto-grants-1999_10