tert-Butyl 6-oxo-2,3-diphenyl-4-morpholinecarboxylate
Tert-Butyl 6-oxo-2,3-diphenyl-4-morpholinecarboxylate (CAS: 302911-78-0) is a heterocyclic organic compound with the molecular formula C21H23NO4 and a molecular weight of 353.41 g/mol. It serves as a valuable building block in organic synthesis, particularly within the realm of medicinal chemistry and materials science. Its morpholine core, substituted with phenyl and tert-butyl carboxylate groups, offers diverse synthetic possibilities for constructing more complex molecular architectures.
- Synonyms
- C21H23NO4

Organic Synthesis Intermediate
This compound functions as a key intermediate in the synthesis of complex organic molecules. Its unique structural features, including the morpholine ring and protected carboxylic acid, facilitate targeted chemical transformations.
Medicinal Chemistry Research
It is utilised in the design and synthesis of novel pharmaceutical candidates. The morpholine scaffold is present in many biologically active compounds, making this derivative a useful starting point for drug discovery.
Heterocyclic Chemistry
As a morpholine derivative, it is employed in studies and applications involving heterocyclic chemistry. Researchers can leverage its reactivity to explore new heterocyclic systems and their properties.
| Molecular weight | 353.41 |
|---|---|
| Empirical formula | C21H23NO4 |
| Assay | ≥99% |
| Melting point | 191-193 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-37/39 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is tert-Butyl 6-oxo-2,3-diphenyl-4-morpholinecarboxylate used for?
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Tert-Butyl 6-oxo-2,3-diphenyl-4-morpholinecarboxylate is primarily used as a building block in organic synthesis, particularly in medicinal chemistry and heterocyclic chemistry research.
What is the CAS number and molecular formula?
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The CAS number is 302911-78-0 and the empirical formula (Hill notation) is C21H23NO4.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this compound with an assay of ≥99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeial grade unless explicitly stated in the product specifications.
How should tert-Butyl 6-oxo-2,3-diphenyl-4-morpholinecarboxylate be handled?
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Handle with appropriate personal protective equipment including a dust mask type N95 (US), eyeshields, and gloves. Avoid breathing dust. Ensure adequate ventilation as it may cause skin, eye, and respiratory irritation (H315-H319-H335).
Is this chemical a controlled substance?
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This chemical is not listed as a controlled substance in the provided safety data.
How is this chemical shipped and exported?
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Tech Serve Solutions, established in 1998, specialises in the global supply and export of fine chemicals, laboratory reagents, and pharmaceutical intermediates, adhering to international shipping regulations.
How can I request a sample or quote?
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To request a sample or a quotation, please contact our sales department through the website or by calling our customer service line.
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