4,4-dimethylcyclopentane-1,2-dione

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

Procedure: light yellow crystalline solid. MS (EI): 294.2 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(2,5-Dichloro-phenyl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: light yellow solid. MS (EI): 310.2 (M+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(3-Fluoro-2-trifluoromethyl-phenyl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: light yellow oil. MS (ESI): 311.0 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(4-Fluoro-2-trifluoromethyl-phenyl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: yellow crystalline solid. MS (ESI): 285.1 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(1-tert-Butyl-5-methyl-1H-pyrazol-4-yl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: yellow gum. MS (ESI): 269.2 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(5-Cyclopropyl-1-methyl-1H-pyrazol-4-yl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: yellow gum. MS (ESI): 269.2 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(5-Cyclopropyl-1-methyl-1H-pyrazol-4-yl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: yellow solid. MS (EI): 326.2 (M+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(5-Chloro-2-trifluoromethyl-phenyl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: yellow solid. MS (EI): 326.2 (M+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(5-Chloro-2-trifluoromethyl-phenyl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: light yellow crystalline solid. MS (ESI): 339.0 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(1-tert-Butyl-5-trifluoromethyl-1H-pyrazol-4-yl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: light yellow oil. MS (ESI): 309.0 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-Oxo-2-(2-trifluoromethoxy-phenyl)-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: light yellow oil. MS (ESI): 309.0 (MH+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-Oxo-2-(2-trifluoromethoxy-phenyl)-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.

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

Procedure: yellow viscous oil. MS (EI): 258.2 (M+). Prepared from 4,4-dimethyl-cyclopentane-1,2-dione, [2-(2-Chloro-phenyl)-2-oxo-ethyl]-phosphonic acid dimethyl ester, hydrazine monohydrate.