2,4-dithiobiuret

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 μl). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The S-octyldithiobiuret was prepared as follows: To 135 g of dithiobiuret in 300 ml ethyleneglycol monomethyl ether were added 210 g of n-octyl bromide dropwise at 70°C. After 12 hours the solvent was distilled off at 12 mm. The residue was dissolved in toluene and hexane was added after which the mixture was cooled at 0°C. The solvent was decanted from the semicrystalline precipitate which was dissolved again in glacial acetic acid. The solution was poured on icewater and stirred for 2 hours. The solid was filtered, stirred with hexane in a beaker until it had completely crystallized, filtered and dried. The product had a melting point of 75°-77°C. After 12 hours the solvent was distilled off at 12 mm The residue was dissolved in toluene hexane was added after which the mixture The solvent was decanted from the semicrystalline precipitate which was dissolved again in glacial acetic acid The solution was poured on icewater The solid was filtered stirred with hexane in a beaker until it had completely crystallized filtered dried

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The S-octyldithiobiuret was prepared as follows: To 135 g of dithiobiuret in 300 ml ethyleneglycol monomethyl ether were added 210 g of n-octyl bromide dropwise at 70°C. After 12 hours the solvent was distilled off at 12 mm. The residue was dissolved in toluene and hexane was added after which the mixture was cooled at 0°C. The solvent was decanted from the semicrystalline precipitate which was dissolved again in glacial acetic acid. The solution was poured on icewater and stirred for 2 hours. The solid was filtered, stirred with hexane in a beaker until it had completely crystallized, filtered and dried. The product had a melting point of 75°-77°C. After 12 hours the solvent was distilled off at 12 mm The residue was dissolved in toluene hexane was added after which the mixture The solvent was decanted from the semicrystalline precipitate which was dissolved again in glacial acetic acid The solution was poured on icewater The solid was filtered stirred with hexane in a beaker until it had completely crystallized filtered dried

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 ml). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 ml). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 ml). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 ml). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 2.00 g (14.8 mmol) dithiobiuret were placed in 25 ml methanol and 2.10 g (14.8 mmol) methyliodide were added at room temperature. The mixture was heated for 3 hours at reflux, then the solution was concentrated, was diluted with 25 ml of ethanol and 2.47 g (14.8 mmol) 2,6-dimethoxybenzylamine were added. The mixture was subsequently stirred again for 2 hours at reflux and subsequently for 30 minutes at 5° C. Filtration of the precipitate formed yielded 970 mg N-[[(2,6-dimethoxybenzyl)amino](imino)methyl]thiourea. The mixture was heated for 3 hours at reflux the solution was concentrated were added Filtration of the precipitate formed

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 μl). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a stirring solution of dithiobiuret (5.0 g, 37 mmol) in THF (75 mL) was added iodomethane (13.1 g, 92.5 mmol, 5.76 μl). After stirring at room temperature for 22 h, the solution was diluted with 150 mL of toluene and allowed to stand at 0° C. for 3 h. The crystals were collected by filtration and washed with cold 2:1 toluene/THF, then dried in vacuo to give the title compound as a white solid (8.7 g, 85%). MS(ESI): 149.9 (M+H)+. to stand at 0° C. for 3 h The crystals were collected by filtration washed with cold 2:1 toluene/THF dried in vacuo

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: The S-octyldithiobiuret was prepared as follows: To 135 g of dithiobiuret in 300 ml ethyleneglycol monomethyl ether were added 210 g of n-octyl bromide dropwise at 70°C. After 12 hours the solvent was distilled off at 12 mm. The residue was dissolved in toluene and hexane was added after which the mixture was cooled at 0°C. The solvent was decanted from the semicrystalline precipitate which was dissolved again in glacial acetic acid. The solution was poured on icewater and stirred for 2 hours. The solid was filtered, stirred with hexane in a beaker until it had completely crystallized, filtered and dried. The product had a melting point of 75°-77°C. After 12 hours the solvent was distilled off at 12 mm The residue was dissolved in toluene hexane was added after which the mixture The solvent was decanted from the semicrystalline precipitate which was dissolved again in glacial acetic acid The solution was poured on icewater The solid was filtered stirred with hexane in a beaker until it had completely crystallized filtered dried