107129-25-9Relevant academic research and scientific papers
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
TAUTOMERIC REARRANGEMENTS AND INTRAMOLECULAR DIELS-ALDER REACTIONS OF DICYANOVINYL AND (CYANOIMINO)ALKYL GROUPS IN THE TROPOLONE SERIES
Hartke, Klaus,Richter, Wolfgang,Massa, Werner,Baum, Gerhard
, p. 2743 - 2746 (2007/10/02)
At room temperature the O-dicyanovinyl tropolones 3 and the O-(cyanoimino)alkyl tropolones 5 show a rapid degenerate O,O-migration of the dicyanovinyl and (cyanoimino)alkyl groups.By heating 3 and 5 in boiling toluene the Diels-Alder adducts 7 and 8 are f
