431905-00-9Relevant academic research and scientific papers
Novel syntheses of polysubstituted pyrroles and oxazoles by 1,3-dipolar cycloaddition reactions of benzotriazole-stabilized nitrile ylides
Katritzky, Alan R.,Zhang, Suoming,Wang, Mingyi,Kolb, Hartmuth C.,Steel, Peter J.
, p. 759 - 765 (2007/10/03)
1,3-Dipolar cycloadditions of benzotriazole-stabilized nitrile ylides with benzyl α,β-unsaturated-carboxylates and aldehydes as dipolarophiles proceeded smoothly and efficiently to give polysubstituted pyrroles and oxazoles, respectively, in good yields.
A novel rearrangement to 1,2,4-triazolo[1,5-α]quinoxalines
Katritzky, Alan R.,Huang, Tian-Bao,Denisko, Olga V.,Steel, Peter J.
, p. 3118 - 3119 (2007/10/03)
Reactions of benzyl bromide or benzyl cinnamate with N-(benzotriazol-1-ylmethyl)arylimidoyl chlorides (2a,b) in the presence of t-BuOK occur with opening of the benzotriazole ring affording 1,2,4-triazolo[1,5-α]quinoxalines (3a,b). A possible reaction mechanism is discussed.
