Sar, Dinabandhu ; Bag, Raghunath ; Yashmeen, Afsana ; Bag, Subhendu Sekhar ; Punniyamurthy, Tharmalingam (2015) Synthesis of functionalized pyrazoles via vanadium-catalyzed C–N dehydrogenative cross-coupling and fluorescence switch-on sensing of BSA protein Organic Letters, 17 (21). pp. 5308-5311. ISSN 1523-7060
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Official URL: http://pubs.acs.org/doi/abs/10.1021/acs.orglett.5b...
Related URL: http://dx.doi.org/10.1021/acs.orglett.5b02669
Abstract
Vanadium-catalyzed C–N dehydrogenative cross-coupling of alkenyl hydrazones leading to functionalized pyrazoles is described in a 1:1 mixture of toluene/H2O using air as the terminal oxidant. Significant practical features include use of the commercial nontoxic VOSO4 as a recyclable catalyst, mild reaction conditions, scalability, and the broad substrate scope. Some of the product pyrazoles exhibit interesting photophysical properties. Fluorescence light-up sensing of BSA protein by one of the pyrazoles is also highlighted.
Item Type: | Article |
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Source: | Copyright of this article belongs to American Chemical Society. |
ID Code: | 106948 |
Deposited On: | 22 Jun 2017 10:06 |
Last Modified: | 22 Jun 2017 10:06 |
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