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Chemical Structure| 1228312-13-7 Chemical Structure| 1228312-13-7

Structure of 1228312-13-7

Chemical Structure| 1228312-13-7

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Product Details of [ 1228312-13-7 ]

CAS No. :1228312-13-7
Formula : C12H19NO6
M.W : 273.28
SMILES Code : O=C(O)C([C@@H]1CN(C(OC(C)(C)C)=O)CC1)C(O)=O
MDL No. :MFCD28001659

Safety of [ 1228312-13-7 ]

GHS Pictogram:
Signal Word:Warning
Hazard Statements:H302-H315-H319
Precautionary Statements:P501-P270-P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313-P301+P312+P330

Application In Synthesis of [ 1228312-13-7 ]

* 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 [ 1228312-13-7 ]

[ 1228312-13-7 ] Synthesis Path-Downstream   1~1

  • 1
  • [ 1228312-13-7 ]
  • [ 204688-60-8 ]
YieldReaction ConditionsOperation in experiment
92% In dimethyl sulfoxide; toluene; for 2h;Reflux;Product distribution / selectivity; A suspension of (f?)-2-(1-(tert-butoxycarbonyl)pyrroliotadiotan-3-yl)maloniotac acid (15 g, 55 mmol) in toluene (150 mL) and dimethylsulfoxide (2 mL) was heated to reflux for a period of 2 h The mixture was allowed to reach ambient and diluted with MTBE (150 mL) The organic solution was washed with 10% aqueous citric acid (2 x 200 mL), and the solvent was removed under vacuum to afford 11 6 g of (R)-2-(1-(tert-butoxycarbonyl)-pyrrolidin-3-yl)acetic acid as an off- white solid (92% yield) 1H NMR (DMSOd6, 400 MHz) delta 12 1 (s, 1 H), 3 36-3 48 (m, 1 H), 3 20- 3 34 (m, 1 H), 3 05-3 19 (m, 1 H, 2 72-2 84 (m, 1 H), 2 30-2 42 (m, 1 H), 2 22-2 30 (m, 2H), 1 85-2 00 (m, 1 H), 1 38-1 54 (m, , 1 H), 1 35 (2, 9H)
92% In dimethyl sulfoxide; toluene; for 2h;Reflux;Product distribution / selectivity; A suspension of (R)-2-(1-(tert-butoxycarbonyl)pyrrolidin-3-yl)malonic acid (15 g, 55 mmol) in toluene (150 ml.) and dimethylsulfoxide (2 mL) was heated to reflux for a period of 2 h. The mixture was allowed to reach ambient and diluted with MTBE (150 mL). The organic solution was washed with 10% aqueous citric acid (2 * 200 mL), and the solvent was removed under vacuum to afford 1 1.6 g of (ft)-2-(1-(tert- butoxycarbonyl)-pyrrolidin-3-yl)acetic acid as an off-white solid (92% yield). 1H NMR (DMSOd6, 400 MHz): delta 12.1 (s, 1 H); 3.36-3.48 (m, 1 H); 3.20-3.34 (m, 1 H); 3.05- 3.19 (m, 1 H; 2.72-2.84 (m, 1 H); 2.30-2.42 (m, 1 H), 2.22-2.30 (m, 2H); 1.85-2.00 (m, 1 H); 1.38-1.54 (m, , 1 H), 1.35 (2, 9H).
92% With dimethyl sulfoxide; In toluene; for 2h;Reflux;Product distribution / selectivity; A suspension of (f?)-2-(1-(tert-butoxycarbonyl)pyrrolidin-3-yl)malonic acid (15 g, 55 mmol) in toluene (150 mL) and dimethylsulfoxide (2 mL) was heated to reflux for a period of 2 h. The mixture was allowed to reach ambient and diluted with MTBE (150 mL). The organic solution was washed with 10% aqueous citric acid (2 chi 200 mL), and the solvent was removed under vacuum to afford 11.6 g of (R)-2-(1-(tert-butoxycarbonyl)-pyrrolidin-3- yl)acetic acid as an off-white solid (92% yield). 1H NMR (DMSO-d6, 400 MHz): delta 12.1 (s, 1 H); 3.36-3.48 (m, 1 H); 3.20-3.34 (m, 1 H); 3.05-3.19 (m, 1 H; 2.72-2.84 (m, 1 H); 2.30-2.42 (m, 1 H), 2.22-2.30 (m, 2H); 1.85-2.00 (m, 1 H); 1.38-1.54 (m, , 1 H), 1.35 (2, 9H).
53% With citric acid; In dimethyl sulfoxide; toluene; for 4h;Reflux; 2-((R)-1-tert-butoxycarbonyl-pyrrolidin-3-yl)-malonic acid diethyl ester (0.785 g, 2.38 mmol) obtained in StepA was dissolved in 8 mL of THF. 6N NaOH (2 ml, 11.9 mmol) was added thereto, and the mixture was stirred at 40Cfor 16 hours. The reaction solution was adjusted to pH 2 by the use of 6N HCl aqueous solution and extracted withEtOAc. The organic layer was dried with anhydrous magnesiumsulfate and concentrated under reduced pressure toobtain 2-((R)-1-tert-butoxycarbonyl-pyrrolidin-3-yl)-malonic acid. The obtained compound was dissolved in 4.5 ml oftoluene. 0.06 ml of DMSO was added thereto, and the mixture was stirred for 4 hours under reflux. After addition of 10%citric acid, the reaction solution was extracted with EtOAc. The organic layer was dried with anhydrous magnesiumsulfateand purified by column chromatography to obtain the title compound (0.29 g, 53 %).1H-NMR (CDCl3) delta 3.62 (1H, m), 3.45 (1H, m), 3.29 (1H, m), 2.96 (1H, m), 2.56 (1H, m), 2.44 (2H, d), 2.07 (1H, m), 1.57(1H, m), 1.44 (9H, s).

 

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