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Efficient regioselective approach for polysubstituted benzene derivatives by intermolecular [2+2+2] cyclotrimerization of alkynes
- Wang, Yao-I., Hsu, Wei-Lun, Ho, Feng-Cheng, Li, Chia-Pei, Wang, Chaun-Fu, Chen, Hsiu-Hui
- Tetrahedron 2017
- alkynes, benzene derivatives, chemical reactions, chemical structure, regioselectivity
- We present an important opinion about the electron effect of the intermolecular cyclcotrimerization of unsymmetrical diaryalkynes in the presence of Co2(CO)8 on the production of corresponding 1,2,4-regioisomer or 1,3,5-regioisomer derivatives with excellent yields and high regioselectivity.