Shaik, Jeelani Basha ; Ramkumar, Venkatachalam ; Varghese, Babu ; Sankararaman, Sethuraman (2013) Synthesis and structure of trans-bis(1,4-dimesityl-3-methyl-1,2,3-triazol-5-ylidene)palladium(II) dichloride and diacetate. Suzuki–Miyaura coupling of polybromoarenes with high catalytic turnover efficiencies Beilstein Journal of Organic Chemistry, 9 . pp. 698-704. ISSN 1860-5397
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Official URL: https://www.beilstein-journals.org/bjoc/articles/9...
Related URL: http://dx.doi.org/10.3762/BJOC.9.79
Abstract
trans-Bis(1,4-dimesityl-3-methyl-1,2,3-triazol-5-ylidene)palladium(II) dichloride has been shown to be an excellent catalyst for the multiple Suzuki–Miyaura coupling reactions of polybromoarenes to the corresponding fully substituted polyarylarenes. The reactions proceeded in excellent yields and with high turnover numbers. With 1,4-dibromobenzene the catalyst was found to be active for up to 13 consecutive cycles with a turnover number of 1260. The polyarylarenes were obtained in pure form after crystallization once without recourse to chromatographic purification. The single-crystal X-ray structures of the chloro (1) as well as the corresponding acetato (2) complexes are also reported and compared with the corresponding complexes of 1,4-diphenyl-3-methyl-1,2,3-triazol-5-ylidene as the ligand.
Item Type: | Article |
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Source: | Copyright of this article belongs to Beilstein-Institut. |
Keywords: | C–C Coupling; N-Heterocyclic Carbene; Palladium; Suzuki–Miyaura Coupling; 1,2,3-Triazolylidene |
ID Code: | 109611 |
Deposited On: | 02 Aug 2017 12:36 |
Last Modified: | 02 Aug 2017 12:36 |
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