1,8-Bis(dimethylamino)naphthalene

January 15, 2026

📰 1,8-Bis(dimethylamino)naphthalene (Proton Sponge) Product News

📝 Overview

1,8-Bis(dimethylamino)naphthalene (CAS 20734-58-1, MF: C14H18N2, MW: 214.31), commonly referred to as Proton Sponge, is a highly basic, sterically hindered organic compound with exceptional proton-accepting ability. Its unique structure, featuring two dimethylamino groups positioned on a rigid naphthalene framework, allows for non-nucleophilic strong base behavior. This property makes it widely valuable in organic synthesis, pharmaceutical R&D, and advanced chemical processes, where selective deprotonation and acid scavenging are required. Proton Sponge is solid at room temperature, highly stable under dry conditions, and suitable for both laboratory-scale experiments and industrial applications.

⚡ Key Properties

Extremely high basicity (pKa ≈ 12), superior to many conventional amines
Non-nucleophilic tertiary amine functionality reduces side reactions
Sterically hindered structure provides high selectivity and control
White to off-white solid, stable under normal storage conditions
Compatible with a wide range of solvents and reaction environments
Facilitates precise deprotonation in sensitive organic transformations

🧪 Applications by Industry

🔬 Organic Synthesis

Acts as a strong, non-nucleophilic base in deprotonation reactions
Functions as an acid scavenger in moisture-sensitive reactions
Enhances yields in base-catalyzed organic reactions
Useful in complex multi-step syntheses where selectivity is critical

💊 Pharmaceutical Industry

Serves as an intermediate or auxiliary reagent for drug synthesis
Supports selective proton abstraction in the construction of bioactive molecules
Assists in improving reaction efficiency, yield, and purity
Widely applied in CNS-related drug discovery and other pharmacological research

🧬 Research & Development

Commonly used in mechanistic studies and advanced laboratory research
Enables chemists to explore reaction pathways and structure-activity relationships (SAR)
Suitable for small-scale and pilot-scale R&D projects
Facilitates design of novel ligands and complex organic molecules