2,3-Dihydroperimidine als Antioxidantien für Schmierstoffe
申请人:CIBA-GEIGY AG
公开号:EP0083311A2
公开(公告)日:1983-07-06
Gegen oxidativen Abbau stabilisierte Schmierstoffe durch Zusatz von 2,3-Dihydroperimidinderivate der Formel I
worin R1, R2, R3 und R4 die im Patentanspruch 1 angegebene Bedeutung haben.
InCl3-catalyzed efficient synthesis of spiro-perimidine derivatives
作者:Zahra Yasaei、Peiman Mirzaei、Ayoob Bazgir
DOI:10.1016/j.crci.2010.02.002
日期:2010.10
Résumé InCl3 was found to be a mild and effective catalyst for the simple and efficient synthesis of spiro-perimidine derivatives by the reaction of naphthalene-1,8-diamine and active carbonyl compounds in water at room temperature. This protocol includes some important aspects like the use of water as a “green” reaction medium, good yielding of products and mild reaction conditions.