5-Bromopentyl cyanide

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:0.00; pressure:0.00; stir:

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

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

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

Procedure: Sodium hydride (24 mg, 1 mmol; 100%) was added to solution of 250 mg (0.855 mmol) of 2-chlorobenzenesulfonic acid 3-hydroxy-5-methylphenyl ester, as prepared in step (c) of Example 1, in 2 mL of N,N-dimethylformamide. After 5 min, 130 μL (0.93 mmol) of 6-bromohexanenitrile was added to the reaction mixture. The reaction mixture was stirred for 2 h at ambient temperature, quenched with brine (50 mL), extracted into diethyl ether (50 mL), washed with water (3×10 mL), dried (MgSO4), and concentrated in vacuo. The residue was purified by flash chromatography (methylene chloride/petroleum ether 4:1 to 100:0) to give 250 mg of the title compound as a colorless oil which solidified upon standing. 1H-NMR (300 MHz, CDCl3) δ 7.97 (dd, 1 H, J=1.4, 7.8 Hz), 7.56-7.65 (m, 2 H), 7.36-7.41 (m, 1 H), 6.59 (br s, 1 H), 6.53 (br, s 1 H), 6.48 (t, 1 H, J=1.1 Hz), 3.85 (t, 2 H), 2.38 (t, 2 H), 2.24 (s, 3 H), and 1.6-1.8 (m, 6 H). Mass spectrum (MALDI-TOF, α-cyano-4-hydroxycinnamic acid matrix) calcd. for C19H20NClO4S: 416.1 (M+Na). Found: 416.1. quenched with brine (50 mL) extracted into diethyl ether (50 mL) washed with water (3×10 mL) dried (MgSO4) concentrated in vacuo The residue was purified by flash chromatography (methylene chloride/petroleum ether 4:1 to 100:0)

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

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

Procedure: Sodium hydrogen sulfide monohydrate (0.25 g, 3.3 mmol) was added to a solution of 3-(3-chloro-1,2,5-thiadiazol-4-yl)pyridine (0.59 g, 3.0 mmol) in DMF (20 ml) at room temperature and the reaction mixture was stirred for 1 h. Potassium carbonate (1.24 g, 9 mmol) and 6-bromocapronitrile (0.80 g, 4.5 mmol) were added and the reaction mixture was stirred for additionally 24 h. Water (50 ml) was added and extracted with ether. The combined ether phases were dried and evaporated to give the title compound. the reaction mixture was stirred for additionally 24 h extracted with ether The combined ether phases were dried evaporated

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

Procedure: Sodium hydrogen sulfide monohydrate (0.25 g, 3.3 mmol) was added to a solution of 3-(3-chloro-1,2,5-thiadiazol-4-yl)pyridine (0.59 g, 3.0 mmol) in DMF (20 ml) at room temperature and the reaction mixture was stirred for 1 h. Potassium carbonate (1.24 g, 9 mmol) and 6-bromocapronitrile (0.80 g, 4.5 mmol) were added and the reaction mixture was stirred for additionally 24 h. Water (50 ml) was added and extracted with ether. The combined ether phases were dried and evaporated to give the title compound. the reaction mixture was stirred for additionally 24 h extracted with ether The combined ether phases were dried evaporated

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 6-bromohexanenitrile, 12 parts of 4-(2-oxazolyl)phenol monohydrochloride, 16.6 parts of potassium carbonate and 282 parts of N,N-dimethylformamide was stirred overnight at 60° C. After cooling, the reaction mixture was poured into water and the product was extracted with methylbenzene. The extract was washed with water, dried, filtered and evaporated. The residue was crystallized from 2,2'-oxybispropane. The product was filtered off and dried, yielding 3.2 parts (20.6%) of 6-[4-(4,5-dihydro-2-oxazolyl)phenoxy]hexanenitrile (int. 107). After cooling the product was extracted with methylbenzene The extract was washed with water dried filtered evaporated The residue was crystallized from 2,2'-oxybispropane The product was filtered off dried

Conditions: temp:60.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 6-bromohexanenitrile, 12 parts of 4-(2-oxazolyl)phenol monohydrochloride, 16.6 parts of potassium carbonate and 282 parts of N,N-dimethylformamide was stirred overnight at 60° C. After cooling, the reaction mixture was poured into water and the product was extracted with methylbenzene. The extract was washed with water, dried, filtered and evaporated. The residue was crystallized from 2,2'-oxybispropane. The product was filtered off and dried, yielding 3.2 parts (20.6%) of 6-[4-(4,5-dihydro-2-oxazolyl)phenoxy]hexanenitrile (int. 107). After cooling the product was extracted with methylbenzene The extract was washed with water dried filtered evaporated The residue was crystallized from 2,2'-oxybispropane The product was filtered off dried