2,2-dimethyl-4-oxopentanenitrile

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

Procedure: 4,4-Dimethyl-5-nitropentan-2-one was made according to the literature procedure; see Kloetzel, M. C. J. Am. Chem. Soc., 69, pp. 2271-2275 (1947). Under a nitrogen atmosphere, a solution of nitropentanone (9.55 g, 60.0 mmol) was cooled to 0° C. Diethyl azodicarboxylate (11.5 g, 66 mmol) and tributylphosphine (26.71 g, 132 mmol) were sequentially added. The reaction was stirred for one hour at 0° C. and then for one hour at room temperature. The solvent was removed under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane). The resulting oil was treated with hexane; a precipitate formed and was removed by fitration. The filtrate was concentrated under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane) to provide 5.17 g of 2,2-dimethyl-4-oxopentanenitrile as a pale yellow oil. for one hour at room temperature The solvent was removed under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane) The resulting oil was treated with hexane a precipitate formed was removed by fitration The filtrate was concentrated under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane)

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

Procedure: 4,4-Dimethyl-5-nitropentan-2-one was made according to the literature procedure; see Kloetzel, M. C. J. Am. Chem. Soc., 69, pp. 2271-2275 (1947). Under a nitrogen atmosphere, a solution of nitropentanone (9.55 g, 60.0 mmol) was cooled to 0° C. Diethyl azodicarboxylate (11.5 g, 66 mmol) and tributylphosphine (26.71 g, 132 mmol) were sequentially added. The reaction was stirred for one hour at 0° C. and then for one hour at room temperature. The solvent was removed under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane). The resulting oil was treated with hexane; a precipitate formed and was removed by fitration. The filtrate was concentrated under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane) to provide 5.17 g of 2,2-dimethyl-4-oxopentanenitrile as a pale yellow oil. for one hour at room temperature The solvent was removed under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane) The resulting oil was treated with hexane a precipitate formed was removed by fitration The filtrate was concentrated under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane)

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

Procedure: 4,4-Dimethyl-5-nitropentan-2-one was made according to the literature procedure; see Kloetzel, M. C. J. Am. Chem. Soc., 69, pp.2271-2275 (1947). Under a nitrogen atmosphere, a solution of nitropentanone (9.55 g, 60.0 mmol) was cooled to 0° C. Diethyl azodicarboxylate (11.5 g, 66 mmol) and tributylphosphine (26.71 g, 132 mmol) were sequentially added. The reaction was stirred for one hour at 0° C. and then for one hour at room temperature. The solvent was removed under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane). The resulting oil was treated with hexane; a precipitate formed and was removed by fitration. The filtrate was concentrated under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane) to provide 5.17 g of 2,2-dimethyl4-oxopentanenitrile as a pale yellow oil. for one hour at room temperature The solvent was removed under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane) The resulting oil was treated with hexane a precipitate formed was removed by fitration The filtrate was concentrated under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane)

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

Procedure: 4,4-Dimethyl-5-nitropentan-2-one was made according to the literature procedure; see Kloetzel, M. C. J. Am. Chem. Soc., 69, pp. 2271-2275 (1947). Under a nitrogen atmosphere, a solution of nitropentanone (9.55 g, 60.0 mmol) was cooled to 0° C. Diethyl azodicarboxylate (11.5 g, 66 mmol) and tributylphosphine (26.71 g, 132 mmol) were sequentially added. The reaction was stirred for one hour at 0° C. and then for one hour at room temperature. The solvent was removed under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane). The resulting oil was treated with hexane; a precipitate formed and was removed by filtration. The filtrate was concentrated under reduced pressure, and the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane) to provide 5.17 g of 2,2-dimethyl-4-oxopentanenitrile as a pale yellow oil. for one hour at room temperature The solvent was removed under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with dichloromethane) The resulting oil was treated with hexane a precipitate formed was removed by filtration The filtrate was concentrated under reduced pressure the residue was purified by chromatography on a HORIZON HPFC system (65I cartridge, eluting with 45% to 55% ethyl acetate in hexane)