Gold nanoparticles supported on hydrotalcite acted as a highly efficient catalyst for the cyclocarbonylation of 2-aminophenols to 2-benzoxazolinones without any additives. After the cyclocarbonylation, the hydrotalcite-supported gold nanoparticles could be reused without loss of catalytic efficiency.
![5-Methoxybenzo[d]oxazol-2(3H)-one Structure](https://image.chemsrc.com/caspic/022/40925-63-1.png)
