1.1
Reagents:
Thionyl chloride
,
Pyridine, 4-ethenyl-, polymer with diethenylbenzene and 1-ethenyl-4-ethylbenzene
Solvents:
Dichloromethane
1.1
Reagents:
Di-tert-butyl dicarbonate
Catalysts:
Magnesium chloride
Solvents:
Tetrahydrofuran
;
6 h, rt
1.1
Reagents:
Phosphorus pentoxide
,
Sulfuric acid
;
0.5 h, 20 °C; 3 h, 100 °C



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