78159-39-4Relevant articles and documents
SYNTHESIS AND CONFIGURATIONAL STABILITY OF 3,8-DIBENZYL-1-AZACYCLOOCTA-1,2-DIENE: THE FIRST EIGHT-MEMBERED CYCLIC KETENIMIDE
Firl, Joachim,Schink, Karl,Kosbahn, Wolfgang
, p. 527 - 530 (2007/10/02)
The preparation of the eight-membered cyclic ketenimide 4 is reported. 4 is a mixture of two diastereomers wich interconvert through configuration inversion of the C=C=N-moiety with ΔG* 19 kcal/mol.The fact that 4 shows a far higher barrier