Reacción #354950

Ecuación de reacción

3-hydroxy-3-aminomethyl-3,4-dihydro-2H-1,5-benzodioxepin

S-methylisothiourea sulfate

dimethylformamide

→

3-hydroxy-3-guanidinomethyl-3,4-dihydro-2H-1,5-benzodioxepin sulfate

Disolventes

water

Condiciones de reacción

Tratamiento posterior

1. 1
   OtroThe solvent is evaporated in vacuo
2. 2
   Otrothe residue recrystallized from ethanol

Procedimiento

3-hydroxy-3-aminomethyl-3,4-dihydro-2H-1,5-benzodioxepin from Example 1, Step E, (1.95 g., 10 millimoles) and 2.78 g. (10 millimoles) of S-methylisothiourea sulfate in 15 mls. of dimethylformamide and 2 mls. of water is heated at 90°-100° C. for 5 hours. The solvent is evaporated in vacuo and the residue recrystallized from ethanol to give 3-hydroxy-3-guanidinomethyl-3,4-dihydro-2H-1,5-benzodioxepin sulfate.

Fuente