118538-85-5Relevant articles and documents
O-(Alkylidenepropanedinitrile)- and O-(Alkylidenecyanamide)tropolonates, Tautomerism and Intramolecular Diels-Alder Reactions
Hartke, Klaus,Richter, Wolfgang F.,Massa, Werner,Baum, Gerhard
, p. 657 - 668 (2007/10/02)
Reaction of tropolones with (1-chloroalkylidene)propanedinitriles 5 or N-cyanobenzimidoyl chloride (6a) leads to O-(alkylidenepropanedinitrile)- or O-(benzylidenecyanamide)tropolonates 10 and 12, respectively.Both show a rapid migration of the O-substitue