Herein we report a novel palladium-catalyzedoxidativecarbonylation reaction for the synthesis of phthalimides with high atom- and step-economy. In our strategy, the imine and H2O, which are generated in situ from the condensation of aldehyde and amine, serve as self-sufficient directing group and nucleophile, respectively. This method provides rapid access to phthalimides starting from readily available
Synthesis of Substituted 1,4,5,6-Tetrahydrocyclopenta[<i>b</i>]pyrroles by Platinum-Catalyzed Cascade Cyclization/Ring Expansion of 2-Alkynyl-1-azaspiro[2.3]hexanes
The reaction of 2-allcynyl-1-azaspiro[2.3]hexanes with a platinum catalyst is described. 1,4,5,6-Tetrahydrocyclopenta[b]pyrroles having a variety of substituents were conveniently synthesized via a cascade cyclization/ring-expansion process.
Phosphatase inhibitors—III. Benzylaminophosphonic acids as potent inhibitors of human prostatic acid phosphatase
作者:Scott A. Beers、Charles F. Schwender、Deborah A. Loughney、Elizabeth Malloy、Keith Demarest、Jerold Jordan
DOI:10.1016/0968-0896(96)00186-1
日期:1996.10
phenylphosphonic acid, and a rigid conformer produced by an internal salt bridge between the phosphonate and the alpha-amino group. Replacement of the phosphonic acid moiety with a phosphinic or carboxylic acid as well as deletion of the benzyl substitution of the alpha-amino group led to great reductions in potency.
Copper‐Promoted Oxidative Amidation of Imines: A Facile Route to Amides
作者:Zhonghua Cao、Da Sheng、Zhiyang Zhang、Haitao Ren、Yong Liu、Songhai Wu、Jiaxiang Zhang、Xu Han
DOI:10.1002/ejoc.202400315
日期:——
A method for preparing amides by imines oxidation is developed using aldehydes and amines as raw materials. Using copper oxide as catalyst and Oxone as oxidant without any coupling reagents, the reaction conditions are mild. A wide substrate range including pesticide and drug molecules has been demonstrated in 32–90 % yields.