Access to 1<i>H</i>-indazoles, 1<i>H</i>-benzoindazoles and 1<i>H</i>-azaindazoles from (het)aryl azides: a one-pot Staudinger-aza-Wittig reaction leading to N–N bond formation?
One-pot synthesis of 1H-indazole derivatives through a proposed Staudinger-aza-Wittig tandem mechanism
一锅法合成1H-吲唑衍生物,通过提出的Staudinger-aza-Wittig串联机制。
1,5-(H, RO, RS) shift/6π-electrocyclic ring closure tandem processes on N-[(α-heterosubstituted)-2-tolyl]ketenimines: a case study of relative migratory aptitudes and activating effects
A number of N-aryl ketenimines, substituted at the ortho position either with different non-cyclic acetalic functions (acetals, monothioacetals, dithioacetals) or with only one alkoxymethyl or (alkylthio)methyl group, have been prepared and submitted to thermal treatment in toluene solution. Under smooth heating the ketenimines bearing non-cyclic acetals converted into 3,4-dihydroquinolines following