ONE-POT OXIDATION OF AZOMETHINE COMPOUNDS INTO ARENECARBOXYLIC ACIDS
摘要:
Aromatic azomethine compounds, such as aldazines 1, aldoximes 7 and tosylhydrazones 8 oxidized with 30% hydrogen peroxide in the presence of poly(bis-1,2-phenylene) diselenide (6) as catalyst produce arenecarboxylic acids 2 mostly in high to excellent yields. The presented one-pot procedure has a synthetic value.
Regeneration of Carbonyl Compounds from Azines with Cerium(IV) Ammonium Nitrate
作者:Miroslaw Giurg、Jacek Mlsochowski
DOI:10.1080/00397919908086590
日期:1999.12.1
Abstract Azines treated with cerium(IV) ammoniumnitrate in acetonitrile under mild conditions afforded aromatic aldehydes and ketones in high to excellent yields.
Microwave-assisted synthesis of 1-hydrazinophosphonates via the reaction of aldazines with dialkyl phosphite
作者:Babak Kaboudin、Soheil Alipour
DOI:10.1002/hc.21019
日期:——
A simple, efficient, and novel method has been developed for the synthesis of 1-hydrazinophosphonic acids from aldazines. As described below, treatment of aldazines with diethyl phosphite gives the corresponding 1-hydrazinophosphonic acids in good yields. The reaction proceeds under microwave irradiation at 110°C and neutral condition without any additives such as base, acid, or catalyst. This method
of the azine into a primary imine and a nitrile. So also one of the imine C–H bonds may be activated during the reaction. Depending on the aromatic substituent of the azine ligands iron carbonyl complexes of the disproportionation products are isolated and characterized by X-ray crystallography. C–C coupling reactions catalyzed by Ru3(CO)12 result in the formation of ortho-substituted azines. In addition