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Concerning the “novel intramolecular hydrogen bond to a trans-syn,s-cis formazan system”: solution isomers of 3-carboxymethylthio- and 3-methoxy-carbonyl-1,5-diphenylformazan

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Neugebauer,  Franz A.
Department of Organic Chemistry, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Neugebauer, F. A., Fischer, H., & Griebel, D. (1980). Concerning the “novel intramolecular hydrogen bond to a trans-syn,s-cis formazan system”: solution isomers of 3-carboxymethylthio- and 3-methoxy-carbonyl-1,5-diphenylformazan. Tetrahedron Letters, 21(10), 899-902. doi:10.1016/S0040-4039(00)77733-1.


Cite as: http://hdl.handle.net/21.11116/0000-0004-9A1B-1
Abstract
Spectroscopic studies of the [1,5-15N2]-labelled title compounds demonstrate the presence of the yellow trans-anti,s-trans () and the red trans-syn,s-cis () isomers in solution. There is no experimental evidence supporting the postulated novel hydrogen bridge .