1-(2,2-Difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid
[CAS# 862574-88-7]

Identification

• Classification: Organic raw materials >> Carboxylic compounds and derivatives
• Name: 1-(2,2-Difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid
• Molecular Formula: C₁₁H₈F₂O₄
• Molecular Weight: 242.18
• CAS Registry Number: 862574-88-7
• EC Number: 800-301-4
• SMILES: C1CC1(C2=CC3=C(C=C2)OC(O3)(F)F)C(=O)O

Properties

• Solubility: Very slightly soluble (0.31 g/L) (25 °C), Calc.^*
• Density: 1.59±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Index of Refraction: 1.588, Calc.^*
• Boiling Point: 331.1±42.0 °C (760 mmHg), Calc.^*
• Flash Point: 154.0±27.9 °C, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software.

Safety Data

• Hazard Symbols: GHS07 Warning
• Risk Statements: H302-H315-H319-H335
• Safety Statements: P261-P264-P264+P265-P270-P271-P280-P301+P317-P302+P352-P304+P340-P305+P351+P338-P319-P321-P330-P332+P317-P337+P317-P362+P364-P403+P233-P405-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H335
Eye irritation	Eye Irrit.	2A	H319

Discovery and Applications

1-(2,2-Difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid is a synthetic organic compound characterized by its distinctive combination of a difluorobenzodioxole ring system and a cyclopropanecarboxylic acid moiety. The molecular structure integrates the chemical formula C(_{11})H(_8)F(_2)O(_4), making it a versatile building block for diverse applications in chemical synthesis and pharmaceutical development.

The discovery and initial exploration of 1-(2,2-difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid are tied to efforts to develop novel compounds with unique structural features. The benzodioxole motif is known for its aromatic stability and the ability to introduce polar functional groups, while the cyclopropane ring imparts strain and rigidity that can influence reactivity and molecular interactions. The difluoro substitution further enhances the electronic properties of the compound, improving its suitability for specialized applications.

Synthetically, this compound is typically prepared via multi-step organic reactions that begin with the construction of the benzodioxole core, often using difluorobenzene derivatives as precursors. The cyclopropanecarboxylic acid group is introduced through cyclopropanation techniques, often utilizing reagents such as diazo compounds or carbene intermediates. The final step involves coupling these two molecular fragments under conditions that preserve the integrity of the reactive functional groups.

One of the primary applications of 1-(2,2-difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid is in medicinal chemistry. Its structural features make it a useful scaffold for designing biologically active molecules, including enzyme inhibitors and receptor modulators. The difluorobenzodioxole group has been recognized for its role in enhancing drug-like properties, such as metabolic stability and bioavailability. Additionally, the cyclopropane carboxylic acid can serve as a binding moiety for specific molecular targets.

In agrochemistry, the compound has potential utility in the development of crop protection agents. The presence of fluorine atoms can increase resistance to degradation under environmental conditions, making derivatives of this compound candidates for herbicides or fungicides. Furthermore, its chemical backbone is suitable for modifications that could tailor its activity against specific agricultural pests or diseases.

1-(2,2-Difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid is also being investigated for material science applications, particularly in the synthesis of polymers and advanced materials. Its rigid and electron-rich structure can be incorporated into polymer backbones to modify thermal and mechanical properties, while the fluorine content may enhance resistance to chemical and thermal stress.

The unique chemical framework and multifaceted applications of 1-(2,2-difluorobenzodioxol-5-yl)cyclopropanecarboxylic acid continue to make it a subject of interest for researchers aiming to expand its uses in both fundamental and applied sciences.

References

2020. Synthetic Approaches to Contemporary Drugs that Contain the Cyclopropyl Moiety. Synthesis, 52(6).
DOI: 10.1055/s-0039-1690058

2018. Tezacaftor. Pharmaceutical Substances.
URL: https://pharmaceutical-substances.thieme.com/ps/search-results?docUri=KD-20-0240