Synthesis of 3-Amino-6,7-Dihydroferroceno[a]Quinolizin-4-One Derivatives via the Reaction of 3,4-Dihydroferroceno[c]Pyridines with Azlactones
作者:Vladislav Yu. Shuvalov、Yuliya S. Rozhkova、Irina V. Plekhanova、Anastasia S. Kostyuchenko、Yurii V. Shklyaev、Alexander S. Fisyuk
DOI:10.1007/s10593-022-03050-5
日期:2022.1
Derivatives of 3-amino-6,7-dihydroferroceno[a]quinolizin-4-one were obtained by the reaction of 3,4-dihydroferroceno[c]pyridines with 4-(ethoxymethylidene)- and 4-(3-oxo-2-benzofuran-1(3H)-ylidene)-2-phenyl-1,3-oxazol-5(4H)-ones (azlactones) in moderate to good yields. The intermediate products of the addition of 4-(ethoxymethylidene)-2-phenyl-1,3-oxazol-5(4H)-one to the alkyl group of 1-alkyl-3,4
3,4-二氢二茂铁[ c ]吡啶与4-(乙氧基亚甲基)-和4-(3-oxo-2)反应得到3-氨基-6,7-二氢二茂铁[ a ]quinolizin-4-one的衍生物-benzofuran-1(3 H )-ylidene)-2-phenyl-1,3-oxazol-5(4 H )-ones (azlactones),产率适中。分离得到4-(乙氧基亚甲基)-2-苯基-1,3-恶唑-5( 4H )-one与1-烷基-3,4-二氢二茂铁[ c ]吡啶的烷基加成的中间产物和特点。4-benzylidene-2-phenyl-1,3-oxazol-5(4 H )-one 与 3,4-dihydroferroceno[ c] 吡啶导致 3-氨基-2-苯基-3,4,6,7-四氢二茂铁[ a ]quinolizin-4-one 衍生物的形成,其被 DDQ 氧化为 3-氨基-2-苯基-6 ,7-二氢二茂铁[ a