Regioselective synthesis of 2-amino-isophthalonitriles through a ring transformation strategy

Singh, Fateh V. ; Kumar, Vijay ; Kumar, Brijesh ; Goel, Atul (2007) Regioselective synthesis of 2-amino-isophthalonitriles through a ring transformation strategy Tetrahedron, 63 (45). pp. 10971-10978. ISSN 0040-4020

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Official URL: http://doi.org/10.1016/j.tet.2007.08.056

Related URL: http://dx.doi.org/10.1016/j.tet.2007.08.056

Abstract

An expeditious synthesis of several 2-amino-isophthalonitriles and their biaryl compounds is described and illustrated by carbanion-induced ring transformation of functionalized 2H-pyran-2-ones with malononitrile in excellent yields. The strength of the reaction lies in the creation of an aromatic ring at room temperature from six-membered lactones under mild reaction conditions. This approach is an alternative to Diels–Alder reactions of 2H-pyran-2-ones with dienophiles, which require forcing thermal conditions to obtain benzene derivatives.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Isophthalonitrile; Benzene; Biaryl; Lactone; 2H-Pyran-2-one; Malononitrile.
ID Code:117930
Deposited On:06 May 2021 09:25
Last Modified:06 May 2021 09:25

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