4-methylsulfanylbenzenethiol

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:0.00; pressure:0.00; stir:

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Chloroisonicotinaldehyde [prepared according to R. B. Moffett et al., J. Heterocycl. Chem. 1979, 16, 1459] (550 mg, 3.9 mmol), 4-methylsulfanyl-benzenethiol (732 mg, 4.7 mmol) potassium carbonate (700 mg, 5.1 mmol) and DMF (10 mL) were combined and the mixture was heated together at 65° C. for 2 h. The solvent was removed in vacuo and the residue was partitioned between EtOAc (50 mL) and water (50 mL). The organic layer was washed with brine, dried (MgSO4) and evaporated to give the title compound (1.124 g) as a yellow oil. The 1H NMR spectrum showed the material to be of sufficient purity (90-95%) to be used without further purification; δH (CDCl3, 300 MHz) 2.52 (3H, s), 7.28 (2H, d), 7.40 (2H, d), 7.64 (1H, d), 8.39 (1H, s), 8.61 (1H, d), 10.42 (1H, s); MS m/z (ES−) 260 (M−H+). The solvent was removed in vacuo the residue was partitioned between EtOAc (50 mL) and water (50 mL) The organic layer was washed with brine dried (MgSO4) evaporated

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-Chloronicotinaldehyde [prepared according to D. Albanese, M. Penso, M. Zenoni, Synthesis 1999, 1294-1296] (500 mg, 3.5 mmol), 4-methylsulfanyl-benzenethiol (606 mg, 3.88 mmol) potassium carbonate (586 mg, 4.24 mmol) and DMF (7 mL) were combined, the mixture was heated together at 50° C. for 1.5 h and then stirred at room temperature overnight. The solvent was removed in vacuo and the residue was partitioned between EtOAc (100 mL) and 10% aqueous K2CO3 (100 mL). The organic layer was dried (MgSO4) and evaporated to give the title compound (1.05 g) as a yellow oil. The 1H NMR spectrum showed the material to be of sufficient purity (90-95%) to be used without further purification; δH (CDCl3, 400 MHz) 2.54 (3H, s), 6.69 (1H, d), 7.35 (2H, d), 7.4 (2H, d), 8.35 (1H, d), 8.87 (1H, s), 10.24 (1H, s); MS m/z (TS+) 262 (MH+). The solvent was removed in vacuo the residue was partitioned between EtOAc (100 mL) and 10% aqueous K2CO3 (100 mL) The organic layer was dried (MgSO4) evaporated

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

Procedure: A suspension of 31.7 g (0.139 mol)of 1-chloro-1-[(4-methoxyphenyl)hydrazono]-2-propanone in 400 ml of ethanol was treated with 23.4 g of 4-methylthiothiophenol and 23.4 of triethylamine. The suspension was heated at reflux for 2 hours and cooled. The resultant suspension was filtered and the precipitate was washed with 1 portion of cold ethanol. The solids were dried in vacuo to yield 1-[(4-methylthiophenyl)thio]-1-[(4-methoxyphenyl)hydrazono]-2-propanone, mp 124-127° C. The suspension was heated at reflux for 2 hours cooled The resultant suspension was filtered the precipitate was washed with 1 portion of cold ethanol The solids were dried in vacuo

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

Procedure: A suspension of 31.7 g (0.139 mol)of 1-chloro-1-[(4-methoxyphenyl)hydrazono]-2-propanone in 400 ml of ethanol was treated with 23.4 g of 4-methylthiothiophenol and 23.4 of triethylamine. The suspension was heated at reflux for 2 hours and cooled. The resultant suspension was filtered and the precipitate was washed with 1 portion of cold ethanol. The solids were dried in vacuo to yield 1-[(4-methylthiophenyl)thio]-1-[(4-methoxyphenyl)hydrazono]-2-propanone, mp 124-127° C. The suspension was heated at reflux for 2 hours cooled The resultant suspension was filtered the precipitate was washed with 1 portion of cold ethanol The solids were dried in vacuo

Conditions: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 3-Chloroisonicotinaldehyde [prepared according to R. B. Moffett et al., J. Heterocycl. Chem. 1979, 16, 1459] (550 mg, 3.9 mmol), 4-methylsulfanyl-benzenethiol (732 mg, 4.7 mmol) potassium carbonate (700 mg, 5.1 mmol) and DMF (10 mL) were combined and the mixture was heated together at 65° C. for 2 h. The solvent was removed in vacuo and the residue was partitioned between EtOAc (50 mL) and water (50 mL). The organic layer was washed with brine, dried (MgSO4) and evaporated to give the title compound (1.124 g) as a yellow oil. The 1H NMR spectrum showed the material to be of sufficient purity (90-95%) to be used without further purification; δH (CDCl3, 300 MHz) 2.52 (3H, s), 7.28 (2H, d), 7.40 (2H, d), 7.64 (1H, d), 8.39 (1H, s), 8.61 (1H, d), 10.42 (1H, s); MS m/z (ES−) 260 (M−H+). The solvent was removed in vacuo the residue was partitioned between EtOAc (50 mL) and water (50 mL) The organic layer was washed with brine dried (MgSO4) evaporated

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-Chloronicotinaldehyde [prepared according to D. Albanese, M. Penso, M. Zenoni, Synthesis 1999, 1294-1296] (500 mg, 3.5 mmol), 4-methylsulfanyl-benzenethiol (606 mg, 3.88 mmol) potassium carbonate (586 mg, 4.24 mmol) and DMF (7 mL) were combined, the mixture was heated together at 50° C. for 1.5 h and then stirred at room temperature overnight. The solvent was removed in vacuo and the residue was partitioned between EtOAc (100 mL) and 10% aqueous K2CO3 (100 mL). The organic layer was dried (MgSO4) and evaporated to give the title compound (1.05 g) as a yellow oil. The 1H NMR spectrum showed the material to be of sufficient purity (90-95%) to be used without further purification; δH (CDCl3, 400 MHz) 2.54 (3H, s), 6.69 (1H, d), 7.35 (2H, d), 7.4 (2H, d), 8.35 (1H, d), 8.87 (1H, s), 10.24 (1H, s); MS m/z (TS+) 262 (MH+). The solvent was removed in vacuo the residue was partitioned between EtOAc (100 mL) and 10% aqueous K2CO3 (100 mL) The organic layer was dried (MgSO4) evaporated

Conditions: temp:50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: 4-Chloronicotinaldehyde [prepared according to D. Albanese, M. Penso, M. Zenoni, Synthesis 1999, 1294-1296] (500 mg, 3.5 mmol), 4-methylsulfanyl-benzenethiol (606 mg, 3.88 mmol) potassium carbonate (586 mg, 4.24 mmol) and DMF (7 mL) were combined, the mixture was heated together at 50° C. for 1.5 h and then stirred at room temperature overnight. The solvent was removed in vacuo and the residue was partitioned between EtOAc (100 mL) and 10% aqueous K2CO3 (100 mL). The organic layer was dried (MgSO4) and evaporated to give the title compound (1.05 g) as a yellow oil. The 1H NMR spectrum showed the material to be of sufficient purity (90-95%) to be used without further purification; δH (CDCl3, 400 MHz) 2.54 (3H, s), 6.69 (1H, d), 7.35 (2H, d), 7.4 (2H, d), 8.35 (1H, d), 8.87 (1H, s), 10.24 (1H, s); MS m/z (TS+) 262 (MH+). The solvent was removed in vacuo the residue was partitioned between EtOAc (100 mL) and 10% aqueous K2CO3 (100 mL) The organic layer was dried (MgSO4) evaporated

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

Procedure: A suspension of 31.7 g (0.139 mol)of 1-chloro-1-[(4-methoxyphenyl)hydrazono]-2-propanone in 400 ml of ethanol was treated with 23.4 g of 4-methylthiothiophenol and 23.4 of triethylamine. The suspension was heated at reflux for 2 hours and cooled. The resultant suspension was filtered and the precipitate was washed with 1 portion of cold ethanol. The solids were dried in vacuo to yield 1-[(4-methylthiophenyl)thio]-1-[(4-methoxyphenyl)hydrazono]-2-propanone, mp 124-127° C. The suspension was heated at reflux for 2 hours cooled The resultant suspension was filtered the precipitate was washed with 1 portion of cold ethanol The solids were dried in vacuo

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

Procedure: A suspension of 31.7 g (0.139 mol)of 1-chloro-1-[(4-methoxyphenyl)hydrazono]-2-propanone in 400 ml of ethanol was treated with 23.4 g of 4-methylthiothiophenol and 23.4 of triethylamine. The suspension was heated at reflux for 2 hours and cooled. The resultant suspension was filtered and the precipitate was washed with 1 portion of cold ethanol. The solids were dried in vacuo to yield 1-[(4-methylthiophenyl)thio]-1-[(4-methoxyphenyl)hydrazono]-2-propanone, mp 124-127° C. The suspension was heated at reflux for 2 hours cooled The resultant suspension was filtered the precipitate was washed with 1 portion of cold ethanol The solids were dried in vacuo