A new route is presented to synthesize benzothiazoles via cyclization of 2-aminothiophenols by CO2 in the presence of diethylsilane catalyzed by 1,5-diazabicyclo[4.3.0]non-5-ene, and a series of benzothiazoles were obtained in good yields.
X. Gao, B. Yu, Y. Zhao, L. Hao and Z. Liu, RSC Adv., 2014, 4, 56957 DOI: 10.1039/C4RA09372K
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