(R)-2-Methoxy-2-phenylacetic acid

Name: (R)-2-Methoxy-2-phenylacetic acid
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CAS No. 3966-32-3
Cat. No. CS-0020718
Purity≥98%
MDL No.MFCD00004250

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Type	HazMat Fee
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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(R)-2-Methoxy-2-phenylacetic acid|CS-0020718

Structure of 3966-32-3

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Description

(R)-2-Methoxy-2-phenylacetic acid is a chiral building block featuring a stereodefined α-methyl group and a methoxy-substituted benzylic center. This configuration enables selective incorporation into pharmaceutical intermediates, where the phenyl ring provides rigidity and the ester-like methoxy functionality supports further derivatization under mild conditions. The compound exhibits enhanced solubility in organic solvents and stability during standard bench handling.

Application

(R)-2-Methoxy-2-phenylacetic acid serves as a valuable chiral building block in asymmetric synthesis, enabling stereoselective transformations through its enantiomerically pure α-alkoxy-α-aryl motif. The molecule exhibits excellent bench stability and facilitates efficient derivatization via esterification, amidation, or metal-catalyzed coupling reactions. Its functional group tolerance supports downstream modifications in medicinal chemistry and process development workflows.

General Information

CAS No. 3966-32-3
Cat. No. CS-0020718
Purity ≥98%
MDL No. MFCD00004250
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₉H₁₀O₃
Molecular Weight 166.17
Synonym(s) (R)-α-Methoxybenzeneacetic acid
SMILES CO[C@@H](C(O)=O)C1=CC=CC=C1

Computational Chemistry Data

TPSA 46.53
LogP 1.4587
H_Acceptors 2
H_Donors 1
Rotatable_Bonds 3

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 : H315-H319-H335
Precautionary Statements : P261-P264-P271-P280-P302+P352

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Other Classifications

Building Blocks Functional Group Carboxylic Acid

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Building Blocks Skeleton Chiral compounds Chiral Building Blocks

Building Blocks Skeleton Chiral compounds Chiral Resolution Reagent

Analytical Chemistry Analytical Reagents Derivatization Reagents HPLC Derivatization Reagents

Analytical Chemistry Analytical Reagents Spectroscopy Reagents NMR

Analytical Chemistry HPLC HPLC Derivatization Reagents UV Detection Labeling Reagents

Analytical Chemistry NMR Optical purity/Absolute Configuration Determination Reagents (for NMR)

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(R)-2-Methoxy-2-phenylacetic acid

CAS No. 3966-32-3

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