5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde

Name: 5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde
Brand: ChemScene
Availability: InStock
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CAS No. 956010-59-6
Cat. No. CS-0155374
Purity≥98%
MDL No.MFCD17276640

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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+
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5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde|CS-0155374

Structure of 956010-59-6

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Description

5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde features a fused bicyclic core with a reactive aldehyde group, enabling direct functionalization in synthetic routes. The electron-rich thiophene moiety enhances conjugation and reactivity in transition-metal-catalyzed transformations. This bench-stable scaffold integrates readily into complex heterocyclic systems for medicinal chemistry applications.

Application

5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde serves as a versatile heterocyclic building block for medicinal chemistry and materials science. The aldehyde functionality enables direct incorporation into diverse scaffolds via reductive amination, Wittig reactions, or Grignard additions. Its fused thiophene core provides structural rigidity and π-conjugation, while the dihydrocyclopenta ring offers synthetic handle for further functionalization. Bench-stable and readily purified by flash chromatography, it facilitates efficient access to bioactive analogs and conjugated systems in high yield.

General Information

CAS No. 956010-59-6
Cat. No. CS-0155374
Purity ≥98%
MDL No. MFCD17276640
Storage -20°C, sealed storage, away from moisture
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₈H₈OS
Molecular Weight 152.21
Synonym(s) 5,6-Dihydro-4H-cyclopenta[b]-thiophene-2-carbaldehyde
SMILES C1CC2=C(C1)SC(=C2)C=O

Computational Chemistry Data

TPSA 17.07
LogP 2.0493
H_Acceptors 2
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-H312-H332
Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362-P501

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Other Classifications

Building Blocks Skeleton Aromatic heterocycle compounds Thiophene compounds

Key Words

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5,6-Dihydro-4H-cyclopenta[b]thiophene-2-carbaldehyde

CAS No. 956010-59-6

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