Reacción #1755463

Ecuación de reacción

1-[2-(3,5-dimethyl-phenyl)-1-thiophen-2-yl-ethyl]-3-(2-hydroxy-ethyl)-thiourea

1-[2-(3,5-Dimethyl-phenyl)-1-thien-2-yl-ethyl]-3-(2-hydroxy-ethyl)-thiourea

diisopropyethylamine

cyanomethyl-trimethyl-phosphonium iodide

→

title compound

Rendimiento 95.0%

(4,5-Dihydro-thiazol-2-yl)-[2-(3,5-dimethyl-phenyl)-1-thien-2-yl-ethyl]-amine

Rendimiento 95.0%

Disolventes

propionitrile

Condiciones de reacción

Tratamiento posterior

1. 1
   ExtracciónExtraction with ethyl acetate
2. 2
   Lavadowashing with potassium carbonate solution and water
3. 3
   Otroby drying
4. 4
   Otroevaporation of the solvent

Procedimiento

To a solution of 1-[2-(3,5-dimethyl-phenyl)-1-thiophen-2-yl-ethyl]-3-(2-hydroxy-ethyl)-thiourea (0.30 g) from example 6 and diisopropyethylamine (0.16 g) in propionitrile (10 ml) was added cyanomethyl-trimethyl-phosphonium iodide (0.27 g, prepared according to Tetrahedron 2001, 57, 5451-54). The reaction mixture was heated up to 90° C. for 72 h. Extraction with ethyl acetate, washing with potassium carbonate solution and water followed by drying and evaporation of the solvent yielded 0.27 mg (95%) of the title compound as brownish oil.

Fuente