2-[(2-氯苯基)甲氨基]乙醇

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:-50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-hydroxyethyl-2-chlorobenzylamine (1.86 g, 10.0 mmole) in dry methylene chloride (6 ml) in a reaction vessel fitted with a calcium chloride (CaCl2) drying tube was added dry pyridine (1.66 ml, 20.5 mmole). The solution was stirred and cooled to -50° C. Sulfuryl chloride (1.35 g, 10.0 mmole) dissolved in dry methylene chloride (4 ml) was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C. The solution was stirred at -50° C. for 90 minutes and then allowed to warm to 8° C. over 90 minutes. The entire reaction mixture was poured onto a silica gel bed (30 g), slurry-packed in a 60 ml Type "C" sintered glass funnel. The bed was eluted with methylene chloride while collecting 40 ml fractions. Fractions containing the product were combined and the solvent removed by evaporation under vacuum at 40° C. yielding N-(2-chlorobenzyl)-2,2-dioxo-1,2,3-oxathiazolidine as a clear oil (0.40 g, 1.85 mmole), which crystallized. Characteristic analytical data are mp. 61°-62.5° C.; and NMR spectra similar to those of Example 2A (above). drying tube was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C The solution was stirred at -50° C. for 90 minutes to warm to 8° C. over 90 minutes The entire reaction mixture was poured onto a silica gel bed (30 g), slurry-packed in a 60 ml Type "C" sintered glass funnel The bed was eluted with methylene chloride while collecting 40 ml fractions Fractions containing the product the solvent removed by evaporation under vacuum at 40° C.

反应条件: temp:-50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-hydroxyethyl-2-chlorobenzylamine (1.86 g, 10.0 mmole) in dry methylene chloride (6 ml) in a reaction vessel fitted with a calcium chloride (CaCl2) drying tube was added dry pyridine (1.66 ml, 20.5 mmole). The solution was stirred and cooled to -50° C. Sulfuryl chloride (1.35 g, 10.0 mmole) dissolved in dry methylene chloride (4 ml) was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C. The solution was stirred at -50° C. for 90 minutes and then allowed to warm to 8° C. over 90 minutes. The entire reaction mixture was poured onto a silica gel bed (30 g), slurry-packed in a 60 ml Type "C" sintered glass funnel. The bed was eluted with methylene chloride while collecting 40 ml fractions. Fractions containing the product were combined and the solvent removed by evaporation under vacuum at 40° C. yielding N-(2-chlorobenzyl)-2,2-dioxo-1,2,3-oxathiazolidine as a clear oil (0.40 g, 1.85 mmole), which crystallized. Characteristic analytical data are mp. 61°-62.5° C.; and NMR spectra similar to those of Example 2A (above). drying tube was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C The solution was stirred at -50° C. for 90 minutes to warm to 8° C. over 90 minutes The entire reaction mixture was poured onto a silica gel bed (30 g), slurry-packed in a 60 ml Type "C" sintered glass funnel The bed was eluted with methylene chloride while collecting 40 ml fractions Fractions containing the product the solvent removed by evaporation under vacuum at 40° C.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: contacting N-hydroxyethyl-2-chlorobenzylamine with thionyl chloride and an organic base to give N-(2-chlorobenzyl)-2-oxo-1,2,3-oxathiazolidine, and

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: contacting N-hydroxyethyl-2-chlorobenzylamine with thionyl chloride and an organic base to give N-(2-chlorobenzyl)-2-oxo-1,2,3-oxathiazolidine, and

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: contacting N-hydroxyethyl-2-chlorobenzylamine with sulfuryl chloride and an organic base to give N-(2-chlorobenzyl)-2,2-dioxo-1,2,3-oxathiazolidine, and

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: contacting N-hydroxyethyl-2-chlorobenzylamine with thionyl chloride and an organic base to give N-(2-chlorobenzyl)-2-oxo-1,2,3-oxathiazolidine, and

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: contacting N-hydroxyethyl-2-chlorobenzylamine with sulfuryl chloride and an organic base to give N-(2-chlorobenzyl)-2,2-dioxo-1,2,3-oxathiazolidine, and

反应条件: temp:-50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-hydroxyethyl-2-chlorobenzylamine (1.86g, 10.0mmole) in dry methylene chloride (6ml) in a reaction vessel fitted with a calcium chloride (CaCl2) drying tube was added dry pyridine (1.66ml, 20.5mmole). The solution was stirred and cooled to -50° C. Sulfuryl chloride (1.35g, 10.0mmole) dissolved in dry methylene chloride (4ml) was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C. The solution was stirred at -50° C. for 90 minutes and then allowed to warm to 8° C over 90 minutes. The entire reaction mixture was poured onto a silica gel bed (30g), slurry-packed in a 60ml Type "C" sintered glass funnel. The bed was eluted with methylene chloride while collecting 40ml fractions. Fractions containing the product were combined and the solvent removed by evaporation under vacuum at 40° C. yielding N-(2-chlorobenzyl)- 2,2-dioxo-1,2,3-oxathiazolidine as a clear oil (0.40g, 1.85mmole), which crystallized. Characteristic analytical data are mp. 61°-62.5° C.; and NMR spectra similar to those of Example 2A (above). drying tube was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C The solution was stirred at -50° C. for 90 minutes to warm to 8° C over 90 minutes The entire reaction mixture The bed was eluted with methylene chloride while collecting 40ml fractions Fractions containing the product the solvent removed by evaporation under vacuum at 40° C.

反应条件: temp:-50.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: To a solution of N-hydroxyethyl-2-chlorobenzylamine (1.86 g, 10.0 mmole) in dry methylene chloride (6 ml) in a reaction vessel fitted with a calcium chloride (CaCl2) drying tube was added dry pyridine (1.66 ml, 20.5 mmole). The solution was stirred and cooled to -50° C. Sulfuryl chloride (1.35 g, 10.0 mmole) dissolved in dry methylene chloride (4 ml) was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C. The solution was stirred at -50° C. for 90 minutes and then allowed to warm to 8° C. over 90 minutes. The entire reaction mixture was poured onto a silica gel bed (30 g), slurry-packed in a 60 ml Type "C" sintered glass funnel. The bed was eluted with methylene chloride while collecting 40 ml fractions. Fractions containing the product were combined and the solvent removed by evaporation under vacuum at 40° C. yielding N-(2-chlorobenzyl)-2,2-dioxo-1,2,3-oxathiazolidine as a clear oil (0.40 g, 1.85 mmole), which crystallized. Characteristic analytical data are mp. 61°-62.5° C.; and NMR spectra similar to those of Example 2A (above). drying tube was added dropwise over 20 minutes while the temperature of the solution was maintained between -45° C. and -50° C The solution was stirred at -50° C. for 90 minutes to warm to 8° C. over 90 minutes The entire reaction mixture was poured onto a silica gel bed (30 g), slurry-packed in a 60 ml Type "C" sintered glass funnel The bed was eluted with methylene chloride while collecting 40 ml fractions Fractions containing the product the solvent removed by evaporation under vacuum at 40° C.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: contacting N-hydroxyethyl-2-chlorobenzylamine with thionyl chloride and an organic base to give N-(2-chlorobenzyl)-2-oxo-1,2,3-oxathiazolidine, and