143948-88-3Relevant articles and documents
A novel and convenient approach to functionalized 2,6,9-trioxabicyclo[3.3.1]nona-3,7-dienes (bridged bis-dioxines)
Oliver Kappe,Faerber, Gereld,Wentrup, Curt,Kollenz, Gert
, p. 4553 - 4556 (1992)
The synthesis of N-aryl-2,6,9-trioxabicyclo[3.3.1]nona-3,7-diene-4-carboxamides 2 by reaction of dipivaloylketene-dimer 1 with aromatic amines is described. Bis-derivatives 5, 6 resp. are formed from 1 and aromatic diamines. The structure of N-phenylcarbo