Hypervalent iodine(III)-promoted N-incorporation into N-aryl vinylogous carbamates to quinoxaline diesters: access to 1,4,5,8-tetraazaphenanthrene

A, Sagar and Shinde, V and Shinde, A H and D S, Sharada (2016) Hypervalent iodine(III)-promoted N-incorporation into N-aryl vinylogous carbamates to quinoxaline diesters: access to 1,4,5,8-tetraazaphenanthrene. Organic & Biomolecular Chemistry, 14 (17). pp. 4018-4022. ISSN 1477-0520

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Abstract

A novel oxidative N-incorporation strategy for synthesis of quinoxaline diesters under metal-free conditions is described for the first time. The mild reaction conditions allow for this transformation via the formation of two C(sp(2))-N bonds utilizing cheaply available NaN3 as the N-atom source. N-Aryl vinylogous carbamates in this study undergo azidation at enamino C(sp(2))-H selectively. The robustness of this strategy is further demonstrated by the synthesis of a valuable 1,4,5,8-tetraazaphenanthrene derivative using a mild and convenient approach.

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IITH Creators:
IITH CreatorsORCiD
D S, SharadaUNSPECIFIED
Item Type: Article
Subjects: ?? sub5.8 ??
Divisions: Department of Chemistry
Depositing User: Team Library
Date Deposited: 27 May 2016 10:10
Last Modified: 27 May 2016 10:10
URI: http://raiith.iith.ac.in/id/eprint/2420
Publisher URL: http://dx.doi.org/10.1039/c6ob00447d
OA policy: http://www.sherpa.ac.uk/romeo/issn/1477-0520/
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