A Facile and Convenient Synthesis of 1H-Isoindole-1,3(2H)-diones
作者:Farzad Nikpour、Samira Kazemi、Davood Sheikh
DOI:10.3987/com-06-10762
日期:——
A facile synthesis of 1H-isoindole-1,3(2H)-diones (3a-h) has been developed by the reaction of the corresponding anhydrides (la-h) with potassium cyanate (4a) or sodium thiocyanate (4b). The reactions were carried out in neutral media under reflux or under microwave irradiation without use of catalyst. Good to excellent yields of the products were obtained in high purity with very simple work-up.
作者:Schier, Ernst-Juergen、Sacher, Wolfgang、Beck, Wolfgang
DOI:——
日期:——
Substituted delta4-tetrahydrophthalimides and production of maleimides
申请人:US RUBBER CO
公开号:US02676179A1
公开(公告)日:1954-04-20
An expedient and convenient approach for one-pot synthesis of 1<i>H-</i>isoindole-1,3(2<i>H</i>)-diones
作者:Zeinab Ekhtiari、Forugh Havasi、Farzad Nikpour
DOI:10.1515/znb-2016-0060
日期:2016.9.1
Abstract An easy and expedient method for the one-pot synthesis of 1H-isoindole-1,3(2H)-diones has been developed by the reaction of the corresponding cyclic anhydrides with guanidinium chloride as a nitrogen source in the presence of FeCl3 as a catalyst under mild reaction conditions.