N-(2-chlorophenyl)hydroxylamine

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

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

Procedure: A suspension of 2-chloronitrobenzene (50 g, 0.318 mol) and ammonium chloride (16.9 g, 0.318 mmol ) in 636 mL of water was warmed to 65° C. To the mixture was added in portions zinc (60 g, 0.955 mol) over 20 min, and the temperature was kept at 70° C.˜75° C. After stirring for 10 min, TLC showed the reaction was completed. The mixture was filtered and washed with water (˜70° C.). To the filtrate was added NaCl, then cooled to −10° C. After 1 h, the mixture was filtered and washed with pertrolume, and then dried to afford the desired hydroxylamine as a white solid (35 g, 76.9%), which was used to next step without purification. 1HNMR (400 MHz, DMSO): δ 8.36 (s, 2 H), 7.16 (m, 2 H), 6.79 (m, 2 H). was kept at 70° C.˜75° C The mixture was filtered washed with water (˜70° C.) To the filtrate was added NaCl cooled to −10° C After 1 h the mixture was filtered washed with pertrolume dried

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed

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

Procedure: A suspension of 2-chloronitrobenzene (50 g, 0.318 mol) and ammonium chloride (16.9 g, 0.318 mmol) in 636 mL of water was warmed to 65° C. To the mixture was added in portions zinc (60 g, 0.955 mol) over 20 min, and the temperature was kept at 70° C.˜75° C. After stirring for 10 min, TLC showed the reaction was completed. The mixture was filtered and washed with water (˜70° C.). To the filtrate was added NaCl, then cooled to −10° C. After 1 h, the mixture was filtered and washed with pertrolume, and then dried to afford the desired hydroxylamine as a white solid (35 g, 76.9%), which was used to next step without purification. 1HNMR (400 MHz, DMSO): δ 8.36 (s, 2H), 7.16 (m, 2H), 6.79 (m, 2H). was kept at 70° C.˜75° C The mixture was filtered washed with water (˜70° C.) To the filtrate was added NaCl cooled to −10° C After 1 h the mixture was filtered washed with pertrolume dried

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

Procedure: A suspension of 2-chloronitrobenzene (50 g, 0.318 mol) and ammonium chloride (16.9 g, 0.318 mmol ) in 636 mL of water was warmed to 65° C. To the mixture was added in portions zinc (60 g, 0.955 mol) over 20 min, and the temperature was kept at 70° C.˜75° C. After stirring for 10 min, TLC showed the reaction was completed. The mixture was filtered and washed with water (˜70° C.). To the filtrate was added NaCl, then cooled to −10° C. After 1 h, the mixture was filtered and washed with pertrolume, and then dried to afford the desired hydroxylamine as a white solid (35 g, 76.9%), which was used to next step without purification. 1HNMR (400 MHz, DMSO): δ 8.36 (s, 2 H), 7.16 (m, 2 H), 6.79 (m, 2 H). was kept at 70° C.˜75° C The mixture was filtered washed with water (˜70° C.) To the filtrate was added NaCl cooled to −10° C After 1 h the mixture was filtered washed with pertrolume dried

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed

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

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed

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

Procedure: o-Chlorophenylhydroxylamine (0.05 moles) was dissolved in warm 95% ethanol (20 cc) and was treated with benzaldehyde (0.05 moles) with vigorous stirring. The solid which formed was from ethanol to give α-phenyl-N-2-chlorophenylnitrone. The solid which formed