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CS-W001157 4
Total: USD 88.00

(R)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate

  • CAS No. 256487-77-1

  • Cat. No. CS-W005221
  • Purity≥97%
  • MDL No.MFCD09954936
  • HazMat Fee +

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    Each bottle is packed as an Excepted Quantity, with a maximum of 1g for items in class 6.1 packing group I or II, and up to 25g for all other hazardous materials.

    If shipping is charged to your FedEx account, the HazMat fee will be billed directly by the courier. Otherwise, the fee will be included on your invoice. To help you avoid the HazMat fee, we can package a 5g order of a class 6.1 packing group I or II material as five separate 1g units, and a 100g order of any other dangerous good as four 25g units. This packaging adjustment will be made unless you instruct otherwise on your purchase order. Below, you will find the fee schedule from FedEx for handling hazardous materials.

    Type
    HazMat Fee
    Excepted Quantity $0.00
    FedEx Limited Quantities Ground $0.00
    Hazmat Ground shipping $50.00+
    Inaccessible (Haz class 6.1 or 9), Domestic $68.00+
    Accessible (Haz class 3, 4, 5 or 8), Domestic $158.00+
    Inaccessible (Haz class 6.1 or 9), International $108.00+
    Accessible (Haz class 3, 4, 5 or 8), International $238.00+

    An item is classified as a dangerous good if our website displays Hazardous Material (HazMat) information for it.

    There is a HazMat shipping fee for each item that qualifies as a dangerous good. Please contact our quotation team via email to confirm the details.

*For research and further manufacturing use only, not for direct human use.

(R)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate|CS-W005221

Structure of 256487-77-1

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Description

(R)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate features a stereodefined pyrrolidine core with orthogonal protecting groups, enabling selective functionalization in asymmetric synthesis. The tert-butyl and methyl esters provide stability and compatibility with diverse reaction conditions, while the enone functionality serves as a key electrophilic handle for C–C bond formation. This scaffold is particularly valuable in the construction of complex nitrogen-containing heterocycles and natural product analogs.

Application

(R)-1-tert-Butyl 2-methyl 4-oxopyrrolidine-1,2-dicarboxylate serves as a versatile chiral building block in asymmetric synthesis, enabling the construction of pyrrolidine-based scaffolds with defined stereochemistry. The molecule's bench-stable nature, combined with orthogonal functionality—particularly the tert-butyl ester and oxo group—facilitates selective transformations in multistep sequences. It functions effectively in standard coupling reactions and serves as a key intermediate in the synthesis of bioactive heterocycles and medicinal chemistry leads.

General Information

  • CAS No. 256487-77-1
  • Cat. No. CS-W005221
  • Purity ≥97%
  • MDL No. MFCD09954936
  • Storage -20°C, sealed storage, away from moisture
  • Shipping Room temperature in continental US; may vary elsewhere.
  • Molecular Formula C₁₁H₁₇NO₅
  • Molecular Weight 243.26
  • Synonym(s) N-Boc-4-oxo-L-proline methyl ester
  • SMILES O=C(N1[C@@H](C(OC)=O)CC(C1)=O)OC(C)(C)C

Computational Chemistry Data

  • TPSA   72.91
  • LogP   0.7379
  • H_Acceptors   5
  • H_Donors   0
  • Rotatable_Bonds   1

Safety Information

Download SDS
GHS Pictogram :
GHS No : GHS07
Signal Word : Warning
UN#: N/A
Class : N/A
Packing Group : N/A
Hazard Statements : H302-H315-H319-H335
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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