2,2,5,5-Tetramethyldihydrofuran-3(2H)-one

Name: 2,2,5,5-Tetramethyldihydrofuran-3(2H)-one
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CAS No. 5455-94-7
Cat. No. CS-0153804
Purity≥97%
MDL No.MFCD00009614

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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+

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2,2,5,5-Tetramethyldihydrofuran-3(2H)-one|CS-0153804

Structure of 5455-94-7

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Description

This cyclic ketone features a sterically shielded dihydrofuran ring system, enhancing stability under standard conditions. The tetramethyl substitution pattern imparts high solubility in organic solvents and reduces nucleophilic reactivity at the carbonyl center. This structure enables selective transformations in synthetic sequences requiring robust, bench-stable ketone intermediates.

Application

2,2,5,5-Tetramethyldihydrofuran-3(2H)-one serves as a stable, bench-ready synthon for the construction of substituted pyrrolidines and other nitrogen-containing heterocycles. Its α,α,β,β-tetramethyl substitution enhances kinetic stability and facilitates clean ring-opening reactions with nucleophiles. The molecule functions as a versatile building block in synthetic routes requiring controlled carbonyl reactivity and orthogonal functional group tolerance.

General Information

CAS No. 5455-94-7
Cat. No. CS-0153804
Purity ≥97%
MDL No. MFCD00009614
Storage 4°C
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₁₄O₂
Molecular Weight 142.20
Synonym(s) DIHYDRO-2,2,5,5-TETRAMETHYL-3(2H)-FURANONE
SMILES CC1(C)CC(=O)C(C)(C)O1

Computational Chemistry Data

TPSA 26.3
LogP 1.533
H_Acceptors 2
H_Donors 0
Rotatable_Bonds 0

Safety Information

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GHS Pictogram :	GHS No : GHS02
Signal Word : Danger	UN#: 1224
Class : 3	Packing Group : Ⅲ
Hazard Statements : H226
Precautionary Statements : P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501

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2,2,5,5-Tetramethyldihydrofuran-3(2H)-one

CAS No. 5455-94-7

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