(R)-1-benzyloxycarbonyl-2-methoxycarbonylaziridine

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl(2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→30% ethyl acetate/hexanes)

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

Procedure: Boron trifluoride diethyl etherate (0.10 mL, 0.84 mmol) was added to a solution of tert-butyl cyclopropylmethyl[(2S)-2-hydroxy-2-phenylethyl]carbamate (2.45 g, 8.39 mmol) and 1-benzyl 2-methyl (2R)-aziridine-1,2-dicarboxylate (1.97 g, 8.39 mmol) in chloroform (20 mL). After 3 h, the reaction was concentrated. Purification by silica gel chromatography (100% hexanes→>30% ethyl acetate/hexanes) gave the title compound (1.21 g). the reaction was concentrated Purification by silica gel chromatography (100% hexanes→>30% ethyl acetate/hexanes)