heptane-1-thiol

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

Procedure: A 60% dispersion of sodium hydride in mineral oil (3.45 g, 86.25 mmol) was added under a heavy flow of nitrogen to anhydrous toluene (1 L). 1-Heptanethiol (14.65 g, 17.0 mL, 110.7 mmol) was added via syringe. Once effervescence stopped, 2,7-dibromo-9-dibromomethylene-fluorene (2) (18.50 g, 37.46 mmol) was added followed by 2,2′-bipyridyl (0.29 g, 1.87 mmol) and nickel(II) chloride dimethoxyethane adduct (0.41 g, 1.87 mmol). The reaction was stirred overnight at reflux. After cooling to room temperature, the reaction mixture was washed with 2M aqueous sodium hydroxide (2×100 mL), 5% aqueous hydrochloric acid (2×100 mL), water (200 mL), and brine (200 ml) before being dried over sodium sulphate and evaporated to dryness. Excess 1-heptanethiol was removed via Kugelrohr distillation. The crude product was purified by flash chromatography (eluent: petrol 40-60) followed by recrystallisation from iso-hexane to afford 2,7-dibromo-9-(bis-heptylsulfanyl-methylene)-fluorene (3) (16.76 g, 75%) as a bright yellow solid, purity 100% (GC): υmax (KBr, cm−1) 3068, 2949, 2920, 2851, 1588, 1559, 1513, 1443, 1396, 1330; δH(CDCl3, 300 MHz) 9.09 (2H, s), 7.53 (2H, d, 3JHH=6.0 Hz), 7.43 (2H, d, 3JHH=6.0 Hz), 3.04 (4H, t, 3JHH=7.5 Hz) 1.70 (4H, m), 1.43 (4H, m), 1.26 (12H, m), 0.86 (6H, m); δc(CDCl3, 75 MHz) 145.5, 139.7, 137.6, 136.1, 130.3, 129.5, 121.1, 120.3, 36.4, 31.7, 30.1, 28.9, 22.6, 14.1; M+=596 (t). at reflux the reaction mixture was washed with 2M aqueous sodium hydroxide (2×100 mL), 5% aqueous hydrochloric acid (2×100 mL), water (200 mL), and brine (200 ml) before being dried over sodium sulphate evaporated to dryness Excess 1-heptanethiol was removed via Kugelrohr distillation The crude product was purified by flash chromatography (eluent: petrol 40-60) followed by recrystallisation from iso-hexane

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

Procedure: 1-Heptanethiol (250 mg) was dissolved in methanol (5 mL), to which a solution of 28% sodium methoxide in methanol (0.37 mL) was then added, followed by stirring at room temperature for 15 minutes. The reaction mixture was added to a solution of p-toluenesulfonic acid [4-(benzyloxy)-3-methylquinolin-2-yl]methyl ester (464 mg) in methanol-THF (1:1, 10 mL), followed by stirring at room temperature for 30 minutes. The reaction mixture was concentrated under reduced pressure, and water (100 mL) was added to the resulting residue, followed by extraction with ethyl acetate (100 mL). The organic layer was washed with saturated brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate=5/1) to obtain 4-(benzyloxy)-2-[(heptylsulfanyl)methyl]-3-methylquinoline (380 mg). was then added by stirring at room temperature for 30 minutes The reaction mixture was concentrated under reduced pressure, and water (100 mL) was added to the resulting residue followed by extraction with ethyl acetate (100 mL) The organic layer was washed with saturated brine dried over anhydrous magnesium sulfate The solvent was evaporated under reduced pressure the residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate=5/1)

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

Procedure: To 1.332 gr (10 mmol) of n-heptyl mercaptan and 981 mg (10 mmol) of 5-hexyn-1-ol dissolved in 25 ml of heptane under an argon atmosphere was added a few crystals of dibenzoyl peroxide. The reaction was stirred magnetically and heated to reflux for 18 hours. It was then cooled and poured into 25 ml of 10% sodium bicarbonate and extracted with 3×25 ml of ethyl acetate. The organic phases were combined and dried over sodium sulfate, filtered, and evaporated to yield a yellow oil. The oil was chromatographed on eight silica gel type GF preparative plates, using hexane-ethyl acetate (4:1) as developing solvent. Following removal of the band corresponding to product from the plates, the product was extracted from the silica with methanol, 684 mg (30% yield) of pure 7-thia-tetradecan-5-ene-1-ol was obtained as a pale yellow oil. heated to reflux for 18 hours It was then cooled extracted with 3×25 ml of ethyl acetate dried over sodium sulfate filtered evaporated to yield a yellow oil The oil was chromatographed on eight silica gel type GF preparative plates removal of the band corresponding to product from the plates the product was extracted from the silica with methanol

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

Procedure: The same operation as in Example 1-1 or 1-2 was carried out using trans-2-decenoic acid and 1-heptanethiol as starting materials to give the aimed compound.

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

Procedure: The same operation as in Example 1-1 or 1-2 was carried out using trans-2-decenoic acid and 1-heptanethiol as starting materials to give the aimed compound.

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

Procedure: 0.57 Grams (0.0050 moles) of 2-methyl-3-furanthiol and 1.32 grams (0.01 moles) of n-heptylmercaptan are dissolved in 12 ml of diethyl ether. 0.8 Grams (0.0075 moles) of sodium carbonate dissolved in 8 ml water is added to the reaction mass. Over a period of 20 minutes, a solution of 1.9 grams (0.0075 moles) of iodine dissolved in 6 ml diethyl ether is added to the reaction mass with stirring until the iodine color remains. The reaction mass is then stirred over a period of 35 minutes. is added to the reaction mass is added to the reaction mass

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

Procedure: To 1.332 gr (10 mmol) of n-heptyl mercaptan and 981 mg (10 mmol) of 5-hexyn-1-ol dissolved in 25 ml of heptane under an argon atmosphere was added a few crystals of dibenzoyl peroxide. The reaction was stirred magnetically and heated to reflux for 18 hours. It was then cooled and poured into 25 ml of 10% sodium bicarbonate and extracted with 3×25 ml of ethyl acetate. The organic phases were combined and dried over sodium sulfate, filtered, and evaporated to yield a yellow oil. The oil was chromatographed on eight silica gel type GF preparative plates, using hexane-ethyl acetate (4:1) as developing solvent. Following removal of the band corresponding to product from the plates, the product was extracted from the silica with methanol, 684 mg (30% yield) of pure 7-thia-tetradecan-5-ene-1-ol was obtained as a pale yellow oil. heated to reflux for 18 hours It was then cooled extracted with 3×25 ml of ethyl acetate dried over sodium sulfate filtered evaporated to yield a yellow oil The oil was chromatographed on eight silica gel type GF preparative plates removal of the band corresponding to product from the plates the product was extracted from the silica with methanol

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

Procedure: To 1.332 gr (10 mmol) of n-heptyl mercaptan and 981 mg (10 mmol) of 5-hexyn-1-ol dissolved in 25 ml of heptane under an argon atmosphere was added a few crystals of dibenzoyl peroxide. The reaction was stirred magnetically and heated to reflux for 18 hours. It was then cooled and poured into 25 ml of 10% sodium bicarbonate and extracted with 3×25 ml of ethyl acetate. The organic phases were combined and dried over sodium sulfate, filtered, and evaporated to yield a yellow oil. The oil was chromatographed on eight silica gel type GF preparative plates, using hexane-ethyl acetate (4:1) as developing solvent. Following removal of the band corresponding to product from the plates, the product was extracted from the silica with methanol, 684 mg (30% yield) of pure 7-thia-tetradecan-5-ene-1-ol was obtained as a pale yellow oil. heated to reflux for 18 hours It was then cooled extracted with 3×25 ml of ethyl acetate dried over sodium sulfate filtered evaporated to yield a yellow oil The oil was chromatographed on eight silica gel type GF preparative plates removal of the band corresponding to product from the plates the product was extracted from the silica with methanol

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

Procedure: To a solution of 4-[1-phenyl-1-(5-(N-(9-fluorenylmethoxycarbonyl)azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester (0.161 g, 0.260 mmol) and heptanethiol (0.398 mL, 2.60 mmol) in THF (2.6 mL) at rt was added DBU (2 drops). The mixture was allowed to stir for 18 h and then the solvent was removed in vacuo. The residue was dissolved in MeOH and purified by preparative HPLC(NH4OAc) to afford the title compound (0.077 g, 74%) as a colorless solid: the solvent was removed in vacuo The residue was dissolved in MeOH purified by preparative HPLC(NH4OAc)

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

Procedure: To a solution of 4-[1-phenyl-1-(5-(N-(9-fluorenylmethoxycarbonyl)azetidin-3-yl)-1,3,4-oxadiazol-2-yl)methylene]piperidine-1-carboxylic acid tert-butyl ester (0.161 g, 0.260 mmol) and heptanethiol (0.398 mL, 2.60 mmol) in THF (2.6 mL) at rt was added DBU (2 drops). The mixture was allowed to stir for 18 h and then the solvent was removed in vacuo. The residue was dissolved in MeOH and purified by preparative HPLC(NH4OAc) to afford the title compound (0.077 g, 74%) as a colorless solid: the solvent was removed in vacuo The residue was dissolved in MeOH purified by preparative HPLC(NH4OAc)

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

Procedure: A 60% dispersion of sodium hydride in mineral oil (3.45 g, 86.25 mmol) was added under a heavy flow of nitrogen to anhydrous toluene (1 L). 1-Heptanethiol (14.65 g, 17.0 mL, 110.7 mmol) was added via syringe. Once effervescence stopped, 2,7-dibromo-9-dibromomethylene-fluorene (2) (18.50 g, 37.46 mmol) was added followed by 2,2′-bipyridyl (0.29 g, 1.87 mmol) and nickel(II) chloride dimethoxyethane adduct (0.41 g, 1.87 mmol). The reaction was stirred overnight at reflux. After cooling to room temperature, the reaction mixture was washed with 2M aqueous sodium hydroxide (2×100 mL), 5% aqueous hydrochloric acid (2×100 mL), water (200 mL), and brine (200 ml) before being dried over sodium sulphate and evaporated to dryness. Excess 1-heptanethiol was removed via Kugelrohr distillation. The crude product was purified by flash chromatography (eluent: petrol 40-60) followed by recrystallisation from iso-hexane to afford 2,7-dibromo-9-(bis-heptylsulfanyl-methylene)-fluorene (3) (16.76 g, 75%) as a bright yellow solid, purity 100% (GC): υmax (KBr, cm−1) 3068, 2949, 2920, 2851, 1588, 1559, 1513, 1443, 1396, 1330; δH(CDCl3, 300 MHz) 9.09 (2H, s), 7.53 (2H, d, 3JHH=6.0 Hz), 7.43 (2H, d, 3JHH=6.0 Hz), 3.04 (4H, t, 3JHH=7.5 Hz) 1.70 (4H, m), 1.43 (4H, m), 1.26 (12H, m), 0.86 (6H, m); δc(CDCl3, 75 MHz) 145.5, 139.7, 137.6, 136.1, 130.3, 129.5, 121.1, 120.3, 36.4, 31.7, 30.1, 28.9, 22.6, 14.1; M+=596 (t). at reflux the reaction mixture was washed with 2M aqueous sodium hydroxide (2×100 mL), 5% aqueous hydrochloric acid (2×100 mL), water (200 mL), and brine (200 ml) before being dried over sodium sulphate evaporated to dryness Excess 1-heptanethiol was removed via Kugelrohr distillation The crude product was purified by flash chromatography (eluent: petrol 40-60) followed by recrystallisation from iso-hexane

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

Procedure: 1-Heptanethiol (250 mg) was dissolved in methanol (5 mL), to which a solution of 28% sodium methoxide in methanol (0.37 mL) was then added, followed by stirring at room temperature for 15 minutes. The reaction mixture was added to a solution of p-toluenesulfonic acid [4-(benzyloxy)-3-methylquinolin-2-yl]methyl ester (464 mg) in methanol-THF (1:1, 10 mL), followed by stirring at room temperature for 30 minutes. The reaction mixture was concentrated under reduced pressure, and water (100 mL) was added to the resulting residue, followed by extraction with ethyl acetate (100 mL). The organic layer was washed with saturated brine, and then dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate=5/1) to obtain 4-(benzyloxy)-2-[(heptylsulfanyl)methyl]-3-methylquinoline (380 mg). was then added by stirring at room temperature for 30 minutes The reaction mixture was concentrated under reduced pressure, and water (100 mL) was added to the resulting residue followed by extraction with ethyl acetate (100 mL) The organic layer was washed with saturated brine dried over anhydrous magnesium sulfate The solvent was evaporated under reduced pressure the residue was purified by silica gel column chromatography (eluent: hexane/ethyl acetate=5/1)