4-Methylbenzenesulfonic acid 2-methoxyethyl ester

Name: 4-Methylbenzenesulfonic acid 2-methoxyethyl ester
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CAS No. 17178-10-8
Cat. No. CS-W023070
Purity≥95%
MDL No.None

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4-Methylbenzenesulfonic acid 2-methoxyethyl ester|CS-W023070

Structure of 17178-10-8

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General Information

CAS No. 17178-10-8
Cat. No. CS-W023070
Purity ≥95%
MDL No. None
Storage Store at room temperature
Shipping Room temperature in continental US; may vary elsewhere.
Molecular Formula C₁₀H₁₄O₄S
Molecular Weight 230.28
Synonym(s) p-Toluenesulfonic Acid 2-Methoxyethyl Ester
SMILES O=S(C1=CC=C(C)C=C1)(OCCOC)=O

Description

4-Methylbenzenesulfonic acid 2-methoxyethyl ester features a hydrolytically stable sulfonate ester linkage paired with a para-methyl aromatic group, enabling selective activation in synthetic sequences. The 2-methoxyethyl moiety enhances solubility in polar organic solvents while maintaining compatibility with bench-stable handling protocols. This compound serves as a tunable protecting group for alcohols in complex molecular architectures.

Application

4-Methylbenzenesulfonic acid 2-methoxyethyl ester serves as a robust, bench-stable protecting group for alcohols and amines, enabling selective deprotection under mild acidic conditions. Its orthogonal stability to many reaction types facilitates complex molecule synthesis. The ester functions effectively in coupling reactions and heterocycle formation, offering clean handling and straightforward purification—ideal for medicinal chemistry and process development workflows.

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-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501

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Computational Chemistry Data

TPSA 52.6
LogP 1.34672
H_Acceptors 4
H_Donors 0
Rotatable_Bonds 5

Other Classifications

Building Blocks Skeleton Aromatic ring compounds Benzene compounds

Key Words

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4-Methylbenzenesulfonic acid 2-methoxyethyl ester

CAS No. 17178-10-8

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