tert-Butyl 4-hydroxy-1H-pyrazole-1-carboxylate

Name: tert-Butyl 4-hydroxy-1H-pyrazole-1-carboxylate
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CAS No. 1394947-77-3
Cat. No. CS-0074790
Purity≥97%
MDL No.None

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Excepted Quantity	$0.00
FedEx Limited Quantities Ground	$0.00
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Accessible (Haz class 3, 4, 5 or 8), Domestic	$158.00+
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tert-Butyl 4-hydroxy-1H-pyrazole-1-carboxylate|CS-0074790

Structure of 1394947-77-3

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Description

tert-Butyl 4-hydroxy-1H-pyrazole-1-carboxylate features a bench-stable pyrazole core with a hydroxyl group at the 4-position, enabling direct functionalization or derivatization in synthetic sequences. The tert-butyl ester moiety provides enhanced solubility and stability during purification, facilitating use in multi-step organic synthesis. This compound serves as a key intermediate for bioactive heterocycles.

Application

tert-Butyl 4-hydroxy-1H-pyrazole-1-carboxylate serves as a stable, bench-ready building block for the synthesis of functionalized pyrazole scaffolds. The protected hydroxyl group enables selective derivatization while maintaining compatibility with standard coupling and reduction protocols. Its robust tert-butyl ester facilitates straightforward deprotection under mild acidic conditions, making it ideal for late-stage functionalization in medicinal chemistry and API development workflows.

General Information

CAS No. 1394947-77-3
Cat. No. CS-0074790
Purity ≥97%
MDL No. None
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₁₂N₂O₃
Molecular Weight 184.19
Synonym(s) None
SMILES O=C(OC(C)(C)C)N1N=CC(O)=C1

Computational Chemistry Data

TPSA 64.35
LogP 1.3719
H_Acceptors 5
H_Donors 1
Rotatable_Bonds 0

Safety Information

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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-P280-P302+P352

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Other Classifications

Building Blocks Functional Group Alcohol

Building Blocks Skeleton Aromatic heterocycle compounds Pyrazole compounds

Key Words

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tert-Butyl 4-hydroxy-1H-pyrazole-1-carboxylate

CAS No. 1394947-77-3

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