134272-39-2Relevant academic research and scientific papers
SYNTHESIS AND REACTIVITY OF 1,1-DIHYDRO-2-OXIMINO-3-ARYL-3H-NAPHTHOPYRANS
Rama, Rajagopal,Srinivasan, Vankipuram R.
, p. 33 - 39 (2007/10/02)
A series of 1,1-dihydro-2-oximino-3-arylnaphthopyrans were synthesised in good yields by reduction of the corresponding 2-nitronaphthopyrans using Raney Nickel and hydrazine hydrate or sodium borohydride in ethanol.Further, the Beckmann rearrangement product on the oxime using phosphorous pentachloride in ether was identified as 1-cyanomethyl-2-naphthol.Whereas using sulfuric acid as the catalyst the product was characterised as 4-arylnaphthoxazepine.
