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Paper

Org. Biomol. Chem., 2006, 4, 2769 - 2771, DOI: 10.1039/b605074c

HClO4–SiO2 as a new, highly efficient, inexpensive and reusable catalyst for N-tert-butoxycarbonylation of amines

Asit K. Chakraborti and Sunay V. Chankeshwara

Perchloric acid adsorbed on silica-gel (HClO4–SiO2) was found to be a new, highly efficient, inexpensive and reusable catalyst for chemoselective N-tert-butoxycarbonylation of amines at room temperature and under solvent-free conditions.

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