An unprecedented intramolecular to intermolecular mechanistic switch in 1,1-diaminoazines leading to differential product formation during the I<sub>2</sub>-induced tandem oxidative transformation
作者:Deepika Kathuria、Pankaj Gupta、Sumit S. Chourasiya、Subash C. Sahoo、Uwe Beifuss、Asit K. Chakraborti、Prasad V. Bharatam
DOI:10.1039/c9ob00610a
日期:——
been developed via tandem oxidative transformation of guanylhydrazones (in its preferentially existing azine tautomeric form) with distinct advantages such as wide substrate scope, use of substoichiometric amounts of iodine, no requirement of external oxidizing agents, base free reaction conditions, short reaction time and moderate to good yields. The role of silversalt in improving the yield and