Research Article

Thioxopyrimidine in Heterocyclic Synthesis III: Synthesis and Properties of Some Novel Heterocyclic Chalcone Derivatives Containing a Thieno[2,3-d]pyrimidine-Based Chromophore

Table 1

Physical and analytical data of 6-(3-substituted-acryloyl)-5-(1-pyrrolyl)-4-methyl-2-phenylthieno[2,3-d]pyrimidine derivatives 6an.

Elemental analysis (%)  
DyeM.P.
(°C)a
Yield
(%)
Molecular
formula
Calcd/Found
C HN

6a18488 68.493.959.22
68.554.029.33
6b28296 72.415.1712.06
72.585.2112.12
6c17096 74.484.829.65
74.444.929.55
6d26295 71.844.659.31
71.804.719.45
6e23093 73.175.6911.38
73.225.7411.24
6f14895 77.264.628.45
77.234.778.56
6g13092 70.074.1310.21
70.154.2210.36
6h26298 67.443.989.83
67.394.069.89
6i27895 79.264.227.70
79.584.567.98
6j17898 75.834.8310.40
75.884.7310.33
6k15293 75.165.409.07
75.185.429.24
6l21084 70.294.6011.71
70.324.5611.55
6m22890 78.314.418.06
78.297.487.97
6n28694 77.554.769.52
77.684.829.52

aRecrystallization from DMF/ethanol.