Synthesis of Naphthylazuleno[2,1-d]pyrimidin-4-amines

Abstract

In this paper, a synthetic method for naphthylazuleno[2,1-d]pyrimidin-4-amines was reported, which began from cheap tropolone, ethyl naphthaleneacetate, malononitrile N,N-dimethylformamide dimethyl acetal (DMF-DMA) and anilines, followed by chlorination, condensation, cyclization and then Dimroth rearrangement reaction, to give naphthylazuleno[2,1-d]pyrimidin-4-amines in moderate yields. The structures of synthesized compounds were determined by 1 H NMR, IR spectra and elemental analysis. This method provides several advantages such as good yield and simple work-up procedure.

Recent Advances in Short Circuit Protection Methods for SiC MOSFET

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