FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing 4-alkoxy-4H-thieno[3,2-c]chromen-2-carbaldehydes of general formula I 
, where R=H, OR2, R2, F; R1, R2 is a lower alkyl, having antiulcer activity and which can be used in medicine. The method comprises reacting 4H-thieno[3,2-c]chromen-2-carbaldehydes of general formula II 
with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) in the presence of an alcohol at room temperature.
EFFECT: improved method.
1 tbl, 4 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PHOTOCHROMIC POLYMERS FOR THREE DIMENSIONAL OPTICAL RANDOM ACCESS MEMORY | 2004 |
|
RU2345997C2 |
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