Coupling of 1,2-bis(alkoxyamino)cyclohexanes with 1,3-dicarbonyl compounds: first synthesis of 1,4-dialkoxy-2,3-dihydro-1,4-diazepinium salts
作者:Evgenii A. Mostovich、Dmitrii G. Mazhukin、Yurii V. Gatilov、Tatyana V. Rybalova
DOI:10.1016/j.mencom.2007.01.019
日期:2007.1
The reactions of two 1,2-bis(alkoxyamino)cyclohexanes with 2-substituted malonic aldehydes, acetylacetaldehyde and acetylacetone gave rise to imidazolidine derivatives, whereas 1,4-dialkoxy-2,3-dihydro-2,3-cyclohexano-1,4-diazepinium salts were the only products in acidic media.