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Organic chemistry is built upon elegant reactions that allow for the precise construction of molecules. Among these, the Gabriel synthesis stands out for its reliability in producing primary amines, a fundamental class of compounds with widespread applications. At the heart of this synthesis lies Phthalimide (CAS 85-41-6), a chemical intermediate that NINGBO INNO PHARMCHEM CO.,LTD. proudly supplies to researchers and manufacturers globally.
The Gabriel synthesis, named after its discoverer Siegmund Gabriel, leverages the unique properties of Phthalimide to overcome the challenges associated with direct amination of alkyl halides. Direct alkylation of ammonia, for instance, often leads to a mixture of primary, secondary, and tertiary amines, along with quaternary ammonium salts, making product isolation difficult. Phthalimide, however, acts as a protected form of ammonia. Its N-H proton is relatively acidic due to resonance stabilization from the adjacent carbonyl groups. Treatment with a base like potassium hydroxide yields the potassium phthalimide salt, a potent nucleophile.
This nucleophilic phthalimide anion then undergoes an SN2 reaction with a primary alkyl halide. The key advantage here is that the phthalimide nitrogen, being part of a stable cyclic imide, is less prone to further alkylation than a simple amine. This controlled alkylation results in an N-alkylphthalimide intermediate. The final step involves the liberation of the primary amine, typically through hydrolysis or hydrazinolysis, yielding a pure primary amine and phthalic acid. The ability to produce amines cleanly is why many seek to buy Phthalimide for their synthesis needs.
As a trusted supplier of Phthalimide, NINGBO INNO PHARMCHEM CO.,LTD. ensures that chemists have access to a high-quality intermediate (99% assay) that facilitates this essential organic transformation. Whether you are in academia or industry, optimizing synthesis routes is critical. Choosing the right raw materials, like our Phthalimide, from a reliable manufacturer in China can significantly impact the success of your projects. We are here to support your endeavors; please get a quote for your Phthalimide requirements and explore the efficiency it brings to your lab or production line.
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to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.
