Details

Autor(en) / Beteiligte

• Metlushka, K. E.
• Sadkova, D. N.
• Nikitina, K. A.
• Yamaleeva, Z. R.
• Ivshin, K. A.
• Kataeva, O. N.
• Alfonsov, V. A.

Titel

Condensation products of Betti base and pyridinecarboxaldehydes

Ist Teil von

• Russian chemical bulletin, 2018-12, Vol.67 (12), p.2271-2274

Ort / Verlag

New York: Springer US

Erscheinungsjahr

2018

Quelle

Springer journals

Beschreibungen/Notizen

• Previously unknown condensation products were obtained by the reaction of the racemic Betti base with 2-, 3- and 4-pyridinecarboxaldehydes. It was established that they have a naphthoxazine structure in solid state. In the solution, a three-component ring-chain equilibrium is established between the imine form and cis - and trans -oxazines. Over time or under heating, these compounds are prone to 2-azaallylic prototropic tautomerism, involving 1-(phenyl- (pyridinylmethylimino)methyl)naphthalen-2-ols in equilibrium.