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<h3>Overview</h3>
<p><strong>Trimethyloxonium tetrafluoroborate</strong> (CAS: 2189-70-4) is a potent methylating agent used in organic synthesis. Its core process involves the transfer of methyl groups to nucleophiles via an oxonium intermediate, facilitating efficient ether and ester formation.</p>
<h3>Application</h3>
<ul>
<li>Pharmaceutical manufacturing for rapid methylation of phenols and carboxylic acids.</li>
<li>Agrochemical production to synthesize specific herbicide intermediates.</li>
<li>Laboratory research for creating complex molecular scaffolds.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly store under inert atmosphere at low temperatures. Use full PPE including face shields and chemical-resistant gloves due to high reactivity with moisture and potential for severe tissue damage upon contact.</p>