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Chemical Structure| 444582-90-5 Chemical Structure| 444582-90-5

Structure of 444582-90-5

Chemical Structure| 444582-90-5

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Product Details of [ 444582-90-5 ]

CAS No. :444582-90-5
Formula : C16H22N2O4
M.W : 306.36
SMILES Code : O=C(O)C1=CC=CC=C1N2CCN(C(OC(C)(C)C)=O)CC2
MDL No. :MFCD04115068
InChI Key :SSBZXKJSOFJQBW-UHFFFAOYSA-N
Pubchem ID :2756776

Safety of [ 444582-90-5 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319-H332-H335
Precautionary Statements:P261-P280-P305+P351+P338

Application In Synthesis of [ 444582-90-5 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 444582-90-5 ]

[ 444582-90-5 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 174855-57-3 ]
  • [ 444582-90-5 ]
YieldReaction ConditionsOperation in experiment
95% An alternative method for preparing this intermediate is as follows. 4-(2-Formyl- phenyl)-piperazine-l-carboxylic acid tert-buty ester (0.50 g, 1.72 mmol) is dissolved in 80 mL of dioxane and 20 mL of H2O. The mixture is cooled to 4 C. To this is added sulfamic acid (1.36 g, 14.00 mmol) in one portion. The mixture is stirred for an additional 30 min. To this is added 3 mL of a solution of NaClO2 (0.343 g, 3.80 mmol) in a dropwise manner. The reaction is quenched reaction with addition of 50 mL of H2O and 50 mL of brine. The mixture is extracted with 3x100 mL of CH2Cl2. The organic phase is washed with 2x50 niL of brine, dried (MgSO4), filtered and concentrated to give 500 mg of 4-(2-carboxy-phenyl)-piperazine-l-carboxylic acid tert-butyl ester, 95 % yield.
4-(2-Formyl-phenyl)-piperazine-l-carboxylic acid tert-butyl ester (0.50 g, 1.72 mmol) is dissolved in 80 mL of dioxane and 20 mL of H2O. The mixture is cooled to 4 C and then sulfamic acid (1.36 g, 14.00 mmol) is added in one portion. The mixture is stirred for an additional 30 min and then 3 mL of a solution of NaClO2 (0.343 g, 3.80 mmol) is added in a drop-wise portion. The reaction is quenched by the addition of 50 mL of H2O and 50 mL of brine. The resulting mixture is extracted with 3x100 mL of CH2Cl2. The combined organic phase is washed with 2x50 mL of brine, dried with MgSO4, filtered and concentrated to give 500 mg of 4-(2-carboxy-phenyl)-piperazine-l-carboxylic acid tert-butyl ester.
 

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