91563-72-3Relevant articles and documents
Direct access to anthranilic acid derivatives via CO2 incorporation reaction using arynes
Yoshida, Hiroto,Morishita, Takami,Ohshita, Joji
supporting information; experimental part, p. 3845 - 3847 (2009/05/31)
(Chemical Equation Presented) CO2 was found to be directly convertible into anthranilic acid derivatives of great synthetic value through a three-component coupling using arynes and amines. Zwitterions arising from nucleophilic attack of amines to arynes serve as key intermediates in the coupling.
Decomposition of 2-dialkylaminobenzoyl azides to yield isocyanates and 1,1 -dialky lindazol-1-ium-3-olates
Waldron, Norman M.,Raza, Muhammad
, p. 271 - 276 (2007/10/03)
Substituted benzoyl azides normally yield the correspondingly substituted isocyanates but when a dialkylated amino group is in the 2-position, in addition to the isocyanate, the 1,1-dialkylated indazol-1-ium-3-olate is produced. The ratio of the two products is very variable depending upon the substitution in the benzene ring. Largest yields of the zwitterionic products were found when there was a substituent in the 3-position regardless of whether the substituent was electron-donating or -withdrawing.