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- W2950121768 abstract "A number of 2-aryl substituted 6-pyrrolidino-4(3H)-quinazolinones are reported. They were synthesised in four steps starting from commercially available 5-chloro-2-nitrobenzoic acid. The key cyclisation-dehydrogenation step between 2-amino-pyrrolidinobenzamide 5 and different benzaldehydes employs NaHSO 3 as the dehydrogenating agent in hot DMA. This last reaction shows a strong dependence on the position of the substituent at the aromatic ring of the benzaldehyde used. Thus, the 2-substituted benzaldehydes, in contrast to 3- and 4-substituted compounds give a poor yield of desired products or a mixture." @default.
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- W2950121768 date "2000-06-01" @default.
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- W2950121768 title "The Synthesis of Substituted 2-Aryl 4(3H)-Quinazolinones using Nahso<sub>3</sub>/Dma. Steric Effect upon the Cyclisation-Dehydrogenation Step" @default.
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- W2950121768 doi "https://doi.org/10.3184/030823400103167381" @default.
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