Réaction #93586

Équation de réaction

3-[4-(3,4-dimethoxyphenyl)-4-isopropyl-4-cyanobutyl]-6,7-dimethoxy-N-methyl-1,2,3,4-tetrahydroisoquinoline

HCl

ether

→

3-[4-(3,4-dimethoxyphenyl)-4-isopropyl-4-cyanobutyl]-6,7-dimethoxy-N-methyl-1,2,3,4-tetrahydroisoquinoline·HCl

Solvants

isopropanol

isopropanol

Conditions de réaction

Traitement

1. 1
   AutreThe resulting solid was collected
2. 2
   Lavagewashed thoroughly with ether-isopropanol (1:1, 50 mL)
3. 3
   Autredried in vacuo at 50° C.

Mode opératoire

The free base, 3-[4-(3,4-dimethoxyphenyl)-4-isopropyl-4-cyanobutyl]-6,7-dimethoxy-N-methyl-1,2,3,4-tetrahydroisoquinoline (1, 15 g, 0.032 mol) was dissolved in isopropanol (70 mL) at 70° C., and 6M HCl in isopropanol (5.6 mL) slowly added. After cooling to room temperature, ether (40 mL) was added until the solution became cloudy (saturated), and the resulting mixture stirred overnight. The resulting solid was collected, washed thoroughly with ether-isopropanol (1:1, 50 mL), and dried in vacuo at 50° C. to yield 3-[4-(3,4-dimethoxyphenyl)-4-isopropyl-4-cyanobutyl]-6,7-dimethoxy-N-methyl-1,2,3,4-tetrahydroisoquinoline·HCl (1·HCl, 13.7 g, m.p. 115°-120° C.) as a white powder.

Source