Cas no 135716-08-4 (Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate)

Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate is a versatile intermediate in organic synthesis, particularly valuable for constructing piperidine-based frameworks. Its structure features both a tert-butyloxycarbonyl (Boc) protecting group and an ethoxycarbonyl-substituted olefin, enabling selective functionalization under mild conditions. The Boc group enhances stability during synthetic manipulations, while the α,β-unsaturated ester moiety allows for further derivatization via conjugate addition or cyclization reactions. This compound is commonly employed in pharmaceutical and agrochemical research for the preparation of nitrogen-containing heterocycles. Its crystalline form and high purity make it suitable for precise applications in multistep syntheses. Storage under inert conditions is recommended to maintain reactivity.
Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate structure
135716-08-4 structure
Product Name:Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate
CAS No:135716-08-4
MF:C14H23NO4
MW:269.33672451973
MDL:MFCD12912655
CID:1027580
PubChem ID:10333298
Update Time:2025-11-02

Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate Chemical and Physical Properties

Names and Identifiers

    • tert-Butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate
    • Ethyl 2-(1-Boc-4-piperidylidene)acetate
    • tert-Butyl 4-(2-ethoxy-2-oxoethylidene)tetrahydro-1(2H)-pyridinecarboxylate
    • (1-tert-butoxycarbonylpiperidin-4-ylidene)acetic acid ethyl ester
    • 1-tert-butoxycarbonyl-4-ethoxycarbonylmethylenepiperidine
    • ethyl [1-(tert-butoxycarbonyl)piperidin-4-ylidene]acetate
    • t-butyl 4-(2-ethoxy-2-oxoethylidene)tetrahydropyridine-
    • tert-butyl 4-(2-ethoxy-2-oxoethylidene)-1-piperidinecarboxylate
    • tert-butyl 4-(ethoxycarbonylmethylene)piperidine-1-carboxylate
    • (1-Boc-piperidin-4-ylidene)acetic Acid Ethyl Ester
    • [1-(tert-Butoxycarbonyl)piperidin-4-ylidene]acetic Acid Ethyl Ester
    • 4-(2-Ethoxy-2-oxoethylidene)piperidine-1-carboxylic Acid tert-Butyl Ester
    • Ethyl (1-Boc-piperidin-4-ylidene)acetate
    • 4-(Ethoxycarbonylmethylene)-1-(tert-butoxycarbonyl)piperidine
    • 4-[(Ethoxycarbonyl)methylene]piperidine-1-carboxylic acid tert-butyl ester
    • Ethyl2-(1-Boc-4-piperidylidene)acetate
    • 1-Boc 4-Ethoxycarbonylmethylene-piperidine
    • 4-(2-ethoxy-2-oxoethylidene)-1-piperidinecarboxylic acid tert-butyl ester
    • NJORMFNJZLXLCN-UHFFFAOYSA-N
    • BCP14377
    • Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate
    • MDL: MFCD12912655
    • Inchi: 1S/C14H23NO4/c1-5-18-12(16)10-11-6-8-15(9-7-11)13(17)19-14(2,3)4/h10H,5-9H2,1-4H3
    • InChI Key: NJORMFNJZLXLCN-UHFFFAOYSA-N
    • SMILES: O(C(N1CC/C(=C\C(=O)OCC)/CC1)=O)C(C)(C)C

Computed Properties

  • Exact Mass: 269.16300
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 4
  • Heavy Atom Count: 19
  • Rotatable Bond Count: 5
  • Complexity: 358
  • XLogP3: 1.7
  • Topological Polar Surface Area: 55.8

Experimental Properties

  • Density: 1.129
  • Melting Point: 83.0 to 87.0 deg-C
  • Boiling Point: 354 oC
  • Flash Point: 168 oC
  • PSA: 55.84000
  • LogP: 2.44470

Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate Security Information

Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate Customs Data

  • HS CODE:2933399090
  • Customs Data:

    China Customs Code:

    2933399090

    Overview:

    2933399090. Other compounds with non fused pyridine rings in structure. VAT:17.0%. Tax refund rate:13.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:20.0%

    Declaration elements:

    Product Name, component content, use to, Please indicate the appearance of Urotropine, 6- caprolactam please indicate the appearance, Signing date

    Summary:

    2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate Production Method

Additional information on Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate

Comprehensive Overview of Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate (CAS No. 135716-08-4)

Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate (CAS No. 135716-08-4) is a highly specialized organic compound that has garnered significant attention in pharmaceutical and chemical research. This compound, often referred to by its abbreviated name tert-butyl ester derivative, is a key intermediate in the synthesis of various bioactive molecules. Its unique structure, featuring a piperidine ring and ethoxycarbonyl group, makes it a versatile building block in medicinal chemistry.

The compound's CAS number 135716-08-4 is frequently searched in academic and industrial databases, reflecting its importance in drug discovery. Researchers are particularly interested in its potential applications in designing central nervous system (CNS) targeting molecules, given the piperidine moiety's prevalence in neuroactive compounds. Recent trends in AI-driven drug discovery have further highlighted the value of such intermediates, as they serve as critical inputs for machine learning-based molecular design platforms.

From a synthetic chemistry perspective, Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate offers excellent reactivity for N-protection strategies and carbon-carbon bond formation. The tert-butoxycarbonyl (Boc) group provides robust protection for the amine functionality, while the α,β-unsaturated ester segment enables diverse Michael addition reactions. These features make it invaluable for constructing complex molecular architectures, particularly in peptide mimetics and small molecule drug candidates.

Environmental and safety considerations for this compound align with modern green chemistry principles. Unlike many reactive intermediates, it demonstrates good stability under standard storage conditions, reducing waste generation in synthetic workflows. This characteristic responds to growing industry demands for sustainable chemical processes, a topic dominating recent pharmaceutical manufacturing discussions. Analytical methods for quality control typically employ HPLC and NMR spectroscopy, ensuring batch-to-batch consistency for research applications.

The compound's physicochemical properties, including its moderate lipophilicity and hydrogen bonding capacity, contribute to its utility in drug-like molecule development. These parameters are crucial for addressing current challenges in bioavailability optimization, a frequent search topic among medicinal chemists. Computational chemistry studies often utilize derivatives of this scaffold to explore molecular docking scenarios and ADMET prediction modeling.

In the context of patent literature, derivatives of Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate appear in numerous applications for kinase inhibitors and GPCR modulators. This reflects the pharmaceutical industry's ongoing pursuit of targeted therapies, particularly in oncology and neurology. The compound's structural flexibility allows for efficient structure-activity relationship (SAR) studies, enabling rapid optimization of lead compounds.

Recent advancements in continuous flow chemistry have opened new possibilities for scaling up production of such intermediates. This aligns with the industry's shift toward process intensification, another trending topic in chemical engineering forums. The compound's stability under mild reaction conditions makes it particularly suitable for these emerging automated synthesis platforms.

From a regulatory standpoint, proper handling of Tert-butyl 4-(2-ethoxy-2-oxoethylidene)piperidine-1-carboxylate requires standard laboratory precautions. Material Safety Data Sheets (MSDS) provide detailed guidance compatible with GLP compliance requirements. The compound's classification falls within typical research chemical categories, without special transportation restrictions when properly packaged.

The commercial availability of this compound through major chemical suppliers ensures accessibility for global research initiatives. Pricing trends reflect its status as a high-value intermediate, with cost-effectiveness analyses frequently comparing synthetic routes for its production. These economic factors contribute to its popularity in both academic and industrial settings.

Future research directions likely to involve this compound include exploration of its enantioselective synthesis pathways and applications in bioconjugation chemistry. These areas represent cutting-edge developments in organic synthesis, frequently appearing in recent scientific literature searches. The compound's structural features position it well for innovation in these rapidly evolving fields.

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