Abstract
The course of the acid-catalysed Prins reaction of tetrahydropyridines 1 with formaldehyde, leading to derivatives of piperidinodioxane 4 and 3-oxa-7-azabicyclononanes 5 and 6, is dramatically changed in the presence of manganese dioxide to give new products, 6-oxa-2-azabicyclo[3.2.1]octan-4-ones 7 and 8.
References
1.
Mansfield R., Schmidle C.
Journal of Organic Chemistry,
1956
2.
Casy A.F., Simmonds A.B., Staniforth D.
Journal of Organic Chemistry,
1972
3.
Soldatenkov A.T., Temesgen A.W., Kuleshova L.N., Khrustalev V.N.
Mendeleev Communications,
1998
4.
Soldatenkov A.T., Temesgen A.W., Bekro I.A., Khristoforova T.P., Soldatova S.A., Anissimov B.N.
Mendeleev Communications,
1997
5.
Soldatenkov A.T., Temesgen A.W., Bekro I.A., Soldatova S.A., Anissimov B.N.
Mendeleev Communications,
1998
6.
Casy A., Ogungbamila F.
Heterocycles,
1981
7.
Korshunov S.P., Vereshchagin L.I.
Russian Chemical Reviews,
1966
8.
10.1070/MC2001v011n01ABEH001386_bib8
Chichibabin
Zh. Russ. Fiz. -Khim. Obshch.,
1930