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- W1978107066 abstract "A range of 2-substituted 4,5-dihydroimidazoles and 2-substituted 1,4,5,6-tetrahydropyrimidines when heated with an excess of substituted ethane-1,2-diamines, o-phenylenediamines, and propane-1,3-diamine underwent diamine exchange to give 2-substituted heterocycles derived from the solvent diamine. The reaction was an equilibrium process favouring six-membered rings. The synthetic scope is amplified by the ready aromatisation of these partially reduced heterocycles." @default.
- W1978107066 created "2016-06-24" @default.
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- W1978107066 date "1989-01-01" @default.
- W1978107066 modified "2023-10-13" @default.
- W1978107066 title "1,2- and 1,3-Diamine exchange between substituted 4,5-dihydroimidazoles and 1,4,5,6-tetrahydropyrimidines: routes to benzimidazoles, dihydroimidazoles, and tetrahydropyrimidines" @default.
- W1978107066 doi "https://doi.org/10.1039/p19890000155" @default.
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