Tetrahedron Letters p. 4553 - 4556 (1992)
Update date:2022-08-04
Topics:
Oliver Kappe
Faerber, Gereld
Wentrup, Curt
Kollenz, Gert
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
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