Vilsmaier, Elmar; Stamm, Thomas; Dauth, Werner, Bulletin des Societes Chimiques Belges, 1992, vol. 101, # 1, p. 37 - 44
作者:Vilsmaier, Elmar、Stamm, Thomas、Dauth, Werner、Tetzlaff, Claus、Barth, Stefan
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VILSMAIER E.; TROEGER W.; SPRUEGEL W.; GAGEL K., CHEM. BER., 1979, 112, NO 8, 2997-3006
作者:VILSMAIER E.、 TROEGER W.、 SPRUEGEL W.、 GAGEL K.
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日期:——
Vilsmaier,E. et al., Chemische Berichte, 1979, vol. 112, p. 2997 - 3006
作者:Vilsmaier,E. et al.
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Functionalized chloroenamines in aminocyclopropane synthesis IV A synthesis for bicyclic lactams from carbamoylated chloroenamines - the result of a tandem ring contraction - cyclization process
N-tosylcarbamoylated chloroenamines 6b-d with sodium cyanide in acetonitrile gave [n.3.0] bicyclic lactams 8b-d instead of the expected [n.1.0] bicyclic compounds of type 7. X-ray structure analyses of 8b-d established an uniform cis-anellation of the pyrrolidone system and an uniform exo-position of the morpholino moiety. A similar formation of a lactam was observed upon the reaction of the carbamoylated chloroenamines