1.
J Org Chem
; 81(9): 3936-41, 2016 05 06.
Artigo
em Inglês
| MEDLINE
| ID: mdl-27040860
RESUMO
A highly efficient AgOTf catalyzed [3,3] sigmatropic rearrangement/1,3-H shift/6π aza-electrocyclization cascade reaction of N-propargylic hydrazones has been developed. This method provides a new mild synthetic route to various polysubstituted 1,6-dihydropyridazines including the 3-CF3-substituted ones with high selectivity.
2.
J Org Chem
; 80(18): 9307-13, 2015 Sep 18.
Artigo
em Inglês
| MEDLINE
| ID: mdl-26305915
RESUMO
An efficient gold-catalyzed cyclization/arylidene group transfer cascade reaction of N-propioloyl hydrazones has been developed. This method provides a novel approach for the synthesis of various functionalized 4-arylidenepyrazolones.